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Driver options:
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===================
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This document contains driver specific options for Xorg and XFree86 and what
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effect they are meant to have. These options are only valid in conjuntion with
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the specified driver and generally have no meaning / effect when used with
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other graphics drivers.
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o fbdev
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o fglrx (binary ATi driver)
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o i740
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o i810
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o mga
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o nv
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o nvidia
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o radeon
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o sis
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o vesa
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Driver fbdev:
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--------------
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(source: man fbdev)
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Option "fbdev" "string"
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The framebuffer device to use. Default: /dev/fb0.
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Option "ShadowFB" "boolean"
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Enable or disable use of the shadow framebuffer layer. Default: on.
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Option "Rotate" "string"
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Enable rotation of the display. The supported values are "CW" (clock‐
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wise, 90 degrees), "UD" (upside down, 180 degrees) and "CCW" (counter
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clockwise, 270 degrees). Implies use of the shadow framebuffer layer.
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Default: off.
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Driver fglrx (ATi binary driver):
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----------------------------------
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Section "Device"
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Identifier "Radeon 9600XT - fglrx"
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Driver "fglrx"
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# ### generic DRI settings ###
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# === disable PnP Monitor ===
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#Option "NoDDC"
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# === disable/enable XAA/DRI ===
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Option "no_accel" "no"
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Option "no_dri" "no"
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# === misc DRI settings ===
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Option "mtrr" "off" # disable DRI mtrr mapper, driver has its own code for mtrr
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# ### FireGL DDX driver module specific settings ###
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# === Screen Management ===
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Option "DesktopSetup" "0x00000000"
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Option "MonitorLayout" "AUTO, AUTO"
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Option "IgnoreEDID" "off"
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Option "HSync2" ""
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Option "VRefresh2" ""
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Option "ScreenOverlap" "0"
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# === TV-out Management ===
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Option "NoTV" "yes"
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Option "TVStandard" "NTSC-M"
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Option "TVHSizeAdj" "0"
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Option "TVVSizeAdj" "0"
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Option "TVHPosAdj" "0"
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Option "TVVPosAdj" "0"
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Option "TVHStartAdj" "0"
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Option "TVColorAdj" "0"
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Option "GammaCorrectionI" "0x00000000"
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Option "GammaCorrectionII" "0x00000000"
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# === OpenGL specific profiles/settings ===
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Option "Capabilities" "0x00000000"
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# === Video Overlay for the Xv extension ===
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Option "VideoOverlay" "on"
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# === OpenGL Overlay ===
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# Note: When OpenGL Overlay is enabled, Video Overlay
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# will be disabled automatically
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Option "OpenGLOverlay" "off"
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# === Center Mode (Laptops only) ===
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Option "CenterMode" "off"
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# === Pseudo Color Visuals (8-bit visuals) ===
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Option "PseudoColorVisuals" "off"
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# === QBS Management ===
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Option "Stereo" "off"
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Option "StereoSyncEnable" "1"
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# === FSAA Management ===
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Option "FSAAEnable" "yes"
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Option "FSAAScale" "4"
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Option "FSAADisableGamma" "no"
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Option "FSAACustomizeMSPos" "no"
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Option "FSAAMSPosX0" "0.000000"
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Option "FSAAMSPosY0" "0.000000"
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Option "FSAAMSPosX1" "0.000000"
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Option "FSAAMSPosY1" "0.000000"
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Option "FSAAMSPosX2" "0.000000"
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Option "FSAAMSPosY2" "0.000000"
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Option "FSAAMSPosX3" "0.000000"
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Option "FSAAMSPosY3" "0.000000"
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Option "FSAAMSPosX4" "0.000000"
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Option "FSAAMSPosY4" "0.000000"
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Option "FSAAMSPosX5" "0.000000"
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Option "FSAAMSPosY5" "0.000000"
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# === Misc Options ===
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Option "UseFastTLS" "0"
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Option "BlockSignalsOnLock" "on"
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Option "UseInternalAGPGART" "yes"
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Option "ForceGenericCPU" "no"
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BusID "PCI:1:0:0" # vendor=1002, device=4152
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Screen 0
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EndSection
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Driver i740:
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-------------
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(No info yet)
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Driver i810:
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-------------
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Option "NoAccel" "boolean"
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Disable or enable acceleration. Default: acceleration is enabled.
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Option "SWCursor" "boolean"
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Disable or enable software cursor. Default: software cursor is dis‐
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able and a hardware cursor is used for configurations where the
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hardware cursor is available.
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Option "ColorKey" "integer"
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This sets the default pixel value for the YUV video overlay key.
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Default: undefined.
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Option "CacheLines" "integer"
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This allows the user to change the amount of graphics memory used for
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2D acceleration and video. Decreasing this amount leaves more for 3D
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textures. Increasing it can improve 2D performance at the expense of
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3D performance. Default: depends on the resolution, depth, and
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available video memory. The driver attempts to allocate at least
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enough to hold two DVD-sized YUV buffers by default. The default
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used for a specific configuration can be found by examining the Xorg
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log file.
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Option "DRI" "boolean"
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Disable or enable DRI support. Default: DRI is enabled for configu‐
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rations where it is supported.
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The following driver Options are supported for the i810 and i815 chipsets:
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Option "DDC" "boolean"
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Disable or enable DDC support. Default: enabled.
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Option "Dac6Bit" "boolean"
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Enable or disable 6-bits per RGB for 8-bit modes. Default: 8-bits
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per RGB for 8-bit modes.
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Option "XvMCSurfaces" "integer"
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This option enables XvMC. The integer parameter specifies the number
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of surfaces to use. Valid values are 6 and 7. Default: XvMC is dis‐
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abled.
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The following driver Options are supported for the 830M and later chipsets:
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Option "VBERestore" "boolean"
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Enable or disable the use of VBE save/restore for saving and restor‐
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ing the initial text mode. This is disabled by default because it
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causes lockups on some platforms. However, there are some cases
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where it must enabled for the correct restoration of the initial
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video mode. If you are having a problem with that, try enabling this
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option. Default: Disabled.
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Option "VideoKey" "integer"
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This is the same as the "ColorKey" option described above. It is
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provided for compatibility with most other drivers.
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Option "XVideo" "boolean"
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Disable or enable XVideo support. Default: XVideo is enabled for
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configurations where it is supported.
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Option "MonitorLayout" "anystr"
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Allow different monitor configurations. e.g. "CRT,LFP" will configure
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a CRT on Pipe A and an LFP on Pipe B. Regardless of the primary
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heads’ pipe it is always configured as "<PIPEA>,<PIPEB>". Addition‐
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ally you can add different configurations such as "CRT+DFP,LFP" which
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would put a digital flat panel and a CRT on pipe A, and a local flat
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panel on pipe B. For single pipe configurations you can just specify
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the monitors types on Pipe A, such as "CRT+DFP" which will enable the
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CRT and DFP on Pipe A. Valid monitors are CRT, LFP, DFP, TV, CRT2,
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LFP2, DFP2, TV2 and NONE. NOTE: Some configurations of monitor types
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may fail, this depends on the Video BIOS and system configuration.
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Default: Not configured, and will use the current head’s pipe and
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monitor.
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Option "Clone" "boolean"
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Enable Clone mode on pipe B. This will setup the second head as a
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complete mirror of the monitor attached to pipe A. NOTE: Video over‐
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lay functions will not work on the second head in this mode. If you
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require this, then use the MonitorLayout above and do (as an example)
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"CRT+DFP,NONE" to configure both a CRT and DFP on Pipe A to achieve
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local mirroring and disable the use of this option. Default: Clone
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mode on pipe B is disabled.
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Option "CloneRefresh" "integer"
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When the Clone option is specified we can drive the second monitor at
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a different refresh rate than the primary. Default: 60Hz.
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Option "CheckLid" "boolean"
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On mobile platforms it’s desirable to monitor the lid status and
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switch the outputs accordingly when the lid is opened or closed. By
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default this option is on, but may incur a very minor performance
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penalty as we need to poll a register on the card to check for this
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activity. It can be turned off using this option. This only works
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with the 830M, 852GM and 855GM systems. Default: enabled.
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Option "FlipPrimary" "boolean"
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When using a dual pipe system, it may be preferable to switch the
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primary screen to the alternate pipe to display on the other monitor
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connection. NOTE: Using this option may cause text mode to be
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restored incorrectly, and thus should be used with caution. Default:
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disabled.
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Option "DisplayInfo" "boolean"
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It has been found that a certain BIOS call can lockup the Xserver
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because of a problem in the Video BIOS. The log file will identify if
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you are suffering from this problem and tell you to turn this option
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off. Default: enabled
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Option "DevicePresence" "boolean"
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Tell the driver to perform an active detect of the currently con‐
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nected monitors. This option is useful if the monitor was not con‐
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nected when the machine has booted, but unfortunately it doesn’t
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always work and is extremely dependent upon the Video BIOS. Default:
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disabled
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Driver mga:
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------------
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Option "ColorKey" "integer"
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Set the colormap index used for the transparency key for the depth 8
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plane when operating in 8+24 overlay mode. The value must be in the
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range 2-255. Default: 255.
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Option "HWCursor" "boolean"
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Enable or disable the HW cursor. Default: on.
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Option "MGASDRAM" "boolean"
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Specify whether G100, G200 or G400 cards have SDRAM. The driver
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attempts to auto-detect this based on the card’s PCI subsystem ID.
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This option may be used to override that auto-detection. The mga
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driver is not able to auto-detect the presence of of SDRAM on sec‐
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ondary heads in multihead configurations so this option will often
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need to be specified in multihead configurations. Default:
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auto-detected.
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Option "NoAccel" "boolean"
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Disable or enable acceleration. Default: acceleration is enabled.
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Option "NoHal" "boolean"
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Disable or enable loading the "mga_hal" module. Default: the module
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is loaded when available and when using hardware that it supports.
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Option "OverclockMem"
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Set clocks to values used by some commercial X Servers (G100, G200
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and G400 only). Default: off.
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Option "Overlay" "value"
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Enable 8+24 overlay mode. Only appropriate for depth 24. Recognized
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values are: "8,24", "24,8". Default: off. (Note: the G100 is unac‐
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celerated in the 8+24 overlay mode due to a missing hardware fea‐
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ture.)
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Option "PciRetry" "boolean"
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Enable or disable PCI retries. Default: off.
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Option "Rotate" "CW"
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Option "Rotate" "CCW"
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Rotate the display clockwise or counterclockwise. This mode is unac‐
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celerated. Default: no rotation.
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Option "ShadowFB" "boolean"
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Enable or disable use of the shadow framebuffer layer. Default: off.
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Option "SyncOnGreen" "boolean"
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Enable or disable combining the sync signals with the green signal.
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Default: off.
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Option "UseFBDev" "boolean"
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Enable or disable use of on OS-specific fb interface (and is not sup‐
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ported on all OSs). See fbdevhw(4x) for further information.
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Default: off.
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Option "VideoKey" "integer"
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This sets the default pixel value for the YUV video overlay key.
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Default: undefined.
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Option "TexturedVideo" "boolean"
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This has XvImage support use the texture engine rather than the video
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overlay. This option is only supported by G200 and later chips, and
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only at 16 and 32 bits per pixel. Default: off.
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Driver nv:
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-----------
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(source: man nv)
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Option "HWCursor" "boolean"
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Enable or disable the HW cursor. Default: on.
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Option "NoAccel" "boolean"
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Disable or enable acceleration. Default: acceleration is enabled.
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Option "UseFBDev" "boolean"
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Enable or disable use of on OS-specific fb interface (and is not sup-
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ported on all OSs). See fbdevhw(4x) for further information.
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Default: off.
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Option "CrtcNumber" "integer"
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GeForce2 MX, nForce2, Quadro4, GeForce4, Quadro FX and GeForce FX may
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have two video outputs. The driver attempts to autodetect which one
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the monitor is connected to. In the case that autodetection picks
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the wrong one, this option may be used to force usage of a particular
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output. The options are "0" or "1". Default: autodetected.
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Option "FlatPanel" "boolean"
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The driver usually can autodetect the presence of a digital flat
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panel. In the case that this fails, this option can be used to force
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the driver to treat the attached device as a digital flat panel.
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With this driver, a digital flat panel will only work if it was
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POSTed by the BIOS, that is, the machine must have booted to the
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panel. If you have a dual head card you may also need to set the
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option CrtcNumber described above. Default: off.
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Option "FPDither" "boolean"
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Many digital flat panels (particularly ones on laptops) have only 6
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bits per component color resolution. This option tells the driver to
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dither from 8 bits per component to 6 before the flat panel truncates
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it. This is only supported in depth 24 on GeForce2 MX, nForce2,
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GeForce4, Quadro4, Geforce FX and Quadro FX. Default: off.
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Option "FPScale" "boolean"
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Supported only on GeForce4, Quadro4, Geforce FX and Quadro FX. This
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option tells to the driver to scale lower resolutions up to the flat
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panel's native resolution. Default: on.
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Option "Rotate" "CW"
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Option "Rotate" "CCW"
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Rotate the display clockwise or counterclockwise. This mode is unac-
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celerated. Default: no rotation.
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Note: The Resize and Rotate extension will be disabled if the Rotate
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option is used.
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Option "ShadowFB" "boolean"
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Enable or disable use of the shadow framebuffer layer. Default: off.
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Driver nvidia.ko (binary driver):
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----------------------------------
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(source: ftp://download.nvidia.com/XFree86/Linux-x86/1.0-7174/README.txt)
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Option "NvAGP" "integer"
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Configure AGP support. Integer argument can be one of:
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0 : disable agp
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1 : use NVIDIA's internal AGP support, if possible
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2 : use AGPGART, if possible
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3 : use any agp support (try AGPGART, then NVIDIA's AGP)
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Please note that NVIDIA's internal AGP support cannot
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work if AGPGART is either statically compiled into your
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kernel or is built as a module, but loaded into your
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kernel (some distributions load AGPGART into the kernel
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at boot up). Default: 3 (the default was 1 until after
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1.0-1251).
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Option "NoLogo" "boolean"
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Disable drawing of the NVIDIA logo splash screen at
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X startup. Default: the logo is drawn.
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Option "RenderAccel" "boolean"
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Enable or disable hardware acceleration of the RENDER
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extension. THIS OPTION IS EXPERIMENTAL. ENABLE IT AT YOUR
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OWN RISK. There is no correctness test suite for the
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RENDER extension so NVIDIA can not verify that RENDER
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acceleration works correctly. Default: hardware
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acceleration of the RENDER extension is disabled.
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Option "NoRenderExtension" "boolean"
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Disable the RENDER extension. Other than recompiling
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the X-server, XFree86 does not seem to have another way of
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disabling this. Fortunatly, we can control this from the
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driver so we export this option. This is useful in depth
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8 where RENDER would normally steal most of the default
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colormap. Default: RENDER is offered when possible.
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Option "UBB" "boolean"
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Enable or disable Unified Back Buffer on any Quadro
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based GPUs (Quadro4 NVS excluded); please see
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Appendix M for a description of UBB. This option has
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no affect on non-Quadro chipsets. Default: UBB is on
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for Quadro chipsets.
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Option "NoFlip" "boolean"
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Disable OpenGL flipping; please see Appendix M for
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a description. Default: OpenGL will swap by flipping
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when possible.
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Option "DigitalVibrance" "integer"
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Enables Digital Vibrance Control. The range of valid
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values are 0 through 255. This feature is not available
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on products older than GeForce2. Default: 0.
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Option "Dac8Bit" "boolean"
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Most Quadro parts by default use a 10 bit color look
|
|
|
up table (LUT) by default; setting this option to TRUE forces
|
|
|
these graphics chips to use an 8 bit (LUT). Default:
|
|
|
a 10 bit LUT is used, when available.
|
|
|
|
|
|
Option "Overlay" "boolean"
|
|
|
Enables RGB workstation overlay visuals. This is only
|
|
|
supported on Quadro4 and Quadro FX chips (Quadro4 NVS
|
|
|
excluded) in depth 24. This option causes the server to
|
|
|
advertise the SERVER_OVERLAY_VISUALS root window property
|
|
|
and GLX will report single and double buffered, Z-buffered
|
|
|
16 bit overlay visuals. The transparency key is pixel
|
|
|
0x0000 (hex). There is no gamma correction support in
|
|
|
the overlay plane. This feature requires XFree86 version
|
|
|
4.1.0 or newer (or the Xorg X server). NV17/18 based
|
|
|
Quadros (ie. 500/550 XGL) have additional restrictions,
|
|
|
namely, overlays are not supported in TwinView mode
|
|
|
or with virtual desktops larger than 2046x2047 in any
|
|
|
dimension (eg. it will not work in 2048x1536 modes).
|
|
|
Quadro 7xx/9xx and Quadro FX will offer overlay visuals
|
|
|
in these modes (TwinView, or virtual desktops larger
|
|
|
than 2046x2047), but the overlay will be emulated with
|
|
|
a substantial performance penalty. RGB workstation
|
|
|
overlays are not supported when the Composite extension is
|
|
|
enabled. Default: off.
|
|
|
|
|
|
Option "CIOverlay" "boolean"
|
|
|
Enables Color Index workstation overlay visuals with
|
|
|
identical restrictions to Option "Overlay" above.
|
|
|
The server will offer visuals both with and without a
|
|
|
transparency key. These are depth 8 PseudoColor visuals.
|
|
|
Enabling Color Index overlays on X servers older than
|
|
|
XFree86 4.3 will force the RENDER extension to be disabled
|
|
|
due to bugs in the RENDER extension in older X servers.
|
|
|
Color Index workstation overlays are not supported when the
|
|
|
Composite extension is enabled. Default: off.
|
|
|
|
|
|
Option "TransparentIndex" "integer"
|
|
|
When color index overlays are enabled, use this option
|
|
|
to choose which pixel is used for the transparent pixel
|
|
|
in visuals featuring transparent pixels. This value
|
|
|
is clamped between 0 and 255 (Note: some applications
|
|
|
such as Alias's Maya require this to be zero
|
|
|
in order to work correctly). Default: 0.
|
|
|
|
|
|
Option "OverlayDefaultVisual" "boolean"
|
|
|
When overlays are used, this option sets the default
|
|
|
visual to an overlay visual thereby putting the root
|
|
|
window in the overlay. This option is not recommended
|
|
|
for RGB overlays. Default: off.
|
|
|
|
|
|
Option "RandRRotation" "boolean"
|
|
|
Enable rotation support for the XRandR extension. This
|
|
|
allows use of the XRandR X server extension for
|
|
|
configuring the screen orientation through rotation.
|
|
|
This feature is supported on GeForce2 or better hardware
|
|
|
using depth 24. This requires an XOrg 6.8.1 or newer
|
|
|
X server. This feature does not work with hardware overlays,
|
|
|
emulated overlays will be used instead at a substantial
|
|
|
performance penalty. See APPENDIX W for details.
|
|
|
Default: off.
|
|
|
|
|
|
Option "SWCursor" "boolean"
|
|
|
Enable or disable software rendering of the X cursor.
|
|
|
Default: off.
|
|
|
|
|
|
Option "HWCursor" "boolean"
|
|
|
Enable or disable hardware rendering of the X cursor.
|
|
|
Default: on.
|
|
|
|
|
|
Option "CursorShadow" "boolean" Enable or disable use of a
|
|
|
shadow with the hardware accelerated cursor; this is a
|
|
|
black translucent replica of your cursor shape at a
|
|
|
given offset from the real cursor. This option is
|
|
|
only available on GeForce2 or better hardware (ie
|
|
|
everything but TNT/TNT2, GeForce 256, GeForce DDR and
|
|
|
Quadro). Default: no cursor shadow.
|
|
|
|
|
|
Option "CursorShadowAlpha" "integer"
|
|
|
The alpha value to use for the cursor shadow; only
|
|
|
applicable if CursorShadow is enabled. This value must
|
|
|
be in the range [0, 255] -- 0 is completely transparent;
|
|
|
255 is completely opaque. Default: 64.
|
|
|
|
|
|
Option "CursorShadowXOffset" "integer"
|
|
|
The offset, in pixels, that the shadow image will be
|
|
|
shifted to the right from the real cursor image; only
|
|
|
applicable if CursorShadow is enabled. This value must
|
|
|
be in the range [0, 32]. Default: 4.
|
|
|
|
|
|
Option "CursorShadowYOffset" "integer"
|
|
|
The offset, in pixels, that the shadow image will be
|
|
|
shifted down from the real cursor image; only applicable
|
|
|
if CursorShadow is enabled. This value must be in the
|
|
|
range [0, 32]. Default: 2.
|
|
|
|
|
|
Option "ConnectedMonitor" "string"
|
|
|
Allows you to override what the NVIDIA kernel module
|
|
|
detects is connected to your video card. This may
|
|
|
be useful, for example, if you use a KVM (keyboard,
|
|
|
video, mouse) switch and you are switched away when
|
|
|
X is started. In such a situation, the NVIDIA kernel
|
|
|
module cannot detect what display devices are connected,
|
|
|
and the NVIDIA X driver assumes you have a single CRT.
|
|
|
|
|
|
Valid values for this option are "CRT" (cathode ray
|
|
|
tube), "DFP" (digital flat panel), or "TV" (television);
|
|
|
if using TwinView, this option may be a comma-separated
|
|
|
list of display devices; e.g.: "CRT, CRT" or "CRT, DFP".
|
|
|
|
|
|
NOTE: anything attached to a 15 pin VGA connector is
|
|
|
regarded by the driver as a CRT. "DFP" should only be
|
|
|
used to refer to flatpanels connected via a DVI port.
|
|
|
|
|
|
Default: string is NULL.
|
|
|
|
|
|
Option "UseEdidFreqs" "boolean"
|
|
|
This option causes the X server to use the HorizSync
|
|
|
and VertRefresh ranges given in a display device's EDID,
|
|
|
if any. EDID provided range information will override
|
|
|
the HorizSync and VertRefresh ranges specified in the
|
|
|
Monitor section. If a display device does not provide an
|
|
|
EDID, or the EDID does not specify an hsync or vrefresh
|
|
|
range, then the X server will default to the HorizSync
|
|
|
and VertRefresh ranges specified in the Monitor section.
|
|
|
|
|
|
Option "IgnoreEDID" "boolean"
|
|
|
Disable probing of EDID (Extended Display Identification
|
|
|
Data) from your monitor. Requested modes are compared
|
|
|
against values gotten from your monitor EDIDs (if any)
|
|
|
during mode validation. Some monitors are known to lie
|
|
|
about their own capabilities. Ignoring the values that
|
|
|
the monitor gives may help get a certain mode validated.
|
|
|
On the other hand, this may be dangerous if you do not
|
|
|
know what you are doing. Default: Use EDIDs.
|
|
|
|
|
|
Option "NoDDC" "boolean"
|
|
|
Synonym for "IgnoreEDID"
|
|
|
|
|
|
Option "FlatPanelProperties" "string"
|
|
|
Requests particular properties of any connected flat
|
|
|
panels as a comma-separated list of property=value pairs.
|
|
|
Currently, the only two available properties are 'Scaling'
|
|
|
and 'Dithering'. The possible values for 'Scaling' are:
|
|
|
'default' (the driver will use whatever scaling state
|
|
|
is current), 'native' (the driver will use the flat
|
|
|
panel's scaler, if it has one), 'scaled' (the driver
|
|
|
will use the NVIDIA scaler, if possible), 'centered'
|
|
|
(the driver will center the image, if possible),
|
|
|
and 'aspect-scaled' (the driver will scale with the
|
|
|
NVIDIA scaler, but keep the aspect ratio correct).
|
|
|
The possible values for 'Dithering' are: 'default'
|
|
|
(the driver will decide when to dither), 'enabled' (the
|
|
|
driver will always dither when possible), and 'disabled'
|
|
|
(the driver will never dither). If any property is not
|
|
|
specified, it's value shall be 'default'. An example
|
|
|
properties string might look like:
|
|
|
|
|
|
"Scaling = centered, Dithering = enabled"
|
|
|
|
|
|
Option "UseInt10Module" "boolean"
|
|
|
Enable use of the X Int10 module to soft-boot all
|
|
|
secondary cards, rather than POSTing the cards through
|
|
|
the NVIDIA kernel module. Default: off (POSTing is done
|
|
|
through the NVIDIA kernel module).
|
|
|
|
|
|
Option "TwinView" "boolean"
|
|
|
Enable or disable TwinView. Please see APPENDIX I for
|
|
|
details. Default: TwinView is disabled.
|
|
|
|
|
|
Option "TwinViewOrientation" "string"
|
|
|
Controls the relationship between the two display devices
|
|
|
when using TwinView. Takes one of the following values:
|
|
|
"RightOf" "LeftOf" "Above" "Below" "Clone". Please see
|
|
|
APPENDIX I for details. Default: string is NULL.
|
|
|
|
|
|
Option "SecondMonitorHorizSync" "range(s)"
|
|
|
This option is like the HorizSync entry in the Monitor
|
|
|
section, but is for the second monitor when using
|
|
|
TwinView. Please see APPENDIX I for details. Default:
|
|
|
none.
|
|
|
|
|
|
Option "SecondMonitorVertRefresh" "range(s)"
|
|
|
This option is like the VertRefresh entry in the Monitor
|
|
|
section, but is for the second monitor when using
|
|
|
TwinView. Please see APPENDIX I for details. Default:
|
|
|
none.
|
|
|
|
|
|
Option "MetaModes" "string"
|
|
|
This option describes the combination of modes to use
|
|
|
on each monitor when using TwinView. Please see APPENDIX
|
|
|
I for details. Default: string is NULL.
|
|
|
|
|
|
Option "NoTwinViewXineramaInfo" "boolean"
|
|
|
When in TwinView, the NVIDIA X driver normally provides
|
|
|
a Xinerama extension that X clients (such as window
|
|
|
managers) can use to to discover the current TwinView
|
|
|
configuration. Some window mangers can get confused by
|
|
|
this information, so this option is provided to disable
|
|
|
this behavior. Default: TwinView Xinerama information
|
|
|
is provided.
|
|
|
|
|
|
Option "TVStandard" "string"
|
|
|
Please see (app-j) APPENDIX J: CONFIGURING TV-OUT.
|
|
|
|
|
|
Option "TVOutFormat" "string"
|
|
|
Please see (app-j) APPENDIX J: CONFIGURING TV-OUT.
|
|
|
|
|
|
Option "TVOverScan" "Decimal value in the range 0.0 to 1.0"
|
|
|
Valid values are in the range 0.0 through 1.0; please see
|
|
|
(app-j) APPENDIX J: CONFIGURING TV-OUT.
|
|
|
|
|
|
Option "Stereo" "integer"
|
|
|
Enable offering of quad-buffered stereo visuals on Quadro.
|
|
|
Integer indicates the type of stereo glasses being used:
|
|
|
|
|
|
1 - DDC glasses. The sync signal is sent to the glasses
|
|
|
via the DDC signal to the monitor. These usually
|
|
|
involve a passthrough cable between the monitor and
|
|
|
video card.
|
|
|
|
|
|
2 - "Blueline" glasses. These usually involve
|
|
|
a passthrough cable between the monitor and video
|
|
|
card. The glasses know which eye to display based
|
|
|
on the length of a blue line visible at the bottom
|
|
|
of the screen. When in this mode, the root window
|
|
|
dimensions are one pixel shorter in the Y dimension
|
|
|
than requested. This mode does not work with virtual
|
|
|
root window sizes larger than the visible root window
|
|
|
size (desktop panning).
|
|
|
|
|
|
3 - Onboard stereo support. This is usually only found
|
|
|
on professional cards. The glasses connect via a
|
|
|
DIN connector on the back of the video card.
|
|
|
|
|
|
4 - TwinView clone mode stereo (aka "passive" stereo).
|
|
|
On video cards that support TwinView, the left eye
|
|
|
is displayed on the first display, and the right
|
|
|
eye is displayed on the second display. This is
|
|
|
normally used in conjuction with special projectors
|
|
|
to produce 2 polarized images which are then viewed
|
|
|
with polarized glasses. To use this stereo mode,
|
|
|
you must also configure TwinView in clone mode with
|
|
|
the same resolution, panning offset, and panning
|
|
|
domains on each display.
|
|
|
|
|
|
Stereo is only available on Quadro cards. Stereo
|
|
|
options 1, 2, and 3 (aka "active" stereo) may be used
|
|
|
with TwinView if all modes within each metamode have
|
|
|
identical timing values. Please see (app-l) APPENDIX
|
|
|
L: PROGRAMMING MODES for suggestions on making sure the
|
|
|
modes within your metamodes are identical. The identical
|
|
|
modeline requirement is not necessary for Stereo option 4
|
|
|
("passive" stereo). Currently, stereo operation may
|
|
|
be "quirky" on the original Quadro (NV10) chip and
|
|
|
left-right flipping may be erratic. We are trying
|
|
|
to resolve this issue for a future release. Default:
|
|
|
Stereo is not enabled.
|
|
|
|
|
|
Stereo options 1, 2, and 3 (aka "active" stereo) are not
|
|
|
supported on Digital Flatpanels.
|
|
|
|
|
|
Option "AllowDFPStereo" "boolean"
|
|
|
By default, the NVIDIA X driver performs a check which
|
|
|
disables active stereo (stereo options 1, 2, and 3)
|
|
|
if the X screen is driving a DFP. The "AllowDFPStereo"
|
|
|
option bypasses this check.
|
|
|
|
|
|
Option "NoBandWidthTest" "boolean"
|
|
|
As part of mode validation, the X driver tests if a
|
|
|
given mode fits within the hardware's memory bandwidth
|
|
|
constraints. This option disables this test. Default:
|
|
|
the memory bandwidth test is performed.
|
|
|
|
|
|
Option "IgnoreDisplayDevices" "string"
|
|
|
This option tells the NVIDIA kernel module to completely
|
|
|
ignore the indicated classes of display devices when
|
|
|
checking what display devices are connected. You may
|
|
|
specify a comma-separated list containing any of "CRT",
|
|
|
"DFP", and "TV".
|
|
|
|
|
|
For example:
|
|
|
|
|
|
Option "IgnoreDisplayDevices" "DFP, TV"
|
|
|
|
|
|
will cause the NVIDIA driver to not attempt to detect
|
|
|
if any flatpanels or TVs are connected.
|
|
|
|
|
|
This option is not normally necessary; however, some video
|
|
|
BIOSes contain incorrect information about what display
|
|
|
devices may be connected, or what i2c port should be
|
|
|
used for detection. These errors can cause long delays
|
|
|
in starting X. If you are experiencing such delays, you
|
|
|
may be able to avoid this by telling the NVIDIA driver to
|
|
|
ignore display devices which you know are not connected.
|
|
|
|
|
|
NOTE: anything attached to a 15 pin VGA connector is
|
|
|
regarded by the driver as a CRT. "DFP" should only be
|
|
|
used to refer to flatpanels connected via a DVI port.
|
|
|
|
|
|
Option "MultisampleCompatibility" "boolean"
|
|
|
Enable or disable the use of separate front and back
|
|
|
multisample buffers. This will consume more memory
|
|
|
but is necessary for correct output when rendering to
|
|
|
both the front and back buffers of a multisample or
|
|
|
FSAA drawable. This option is necessary for correct
|
|
|
operation of SoftImage XSI. Default: a singlemultisample
|
|
|
buffer is shared between the front and back buffers.
|
|
|
|
|
|
Option "NoPowerConnectorCheck" "boolean"
|
|
|
The NVIDIA X driver will abort X server initialization
|
|
|
if it detects that a GPU that requires an external power
|
|
|
connector does not have an external power connector
|
|
|
plugged in. This option can be used to bypass this test.
|
|
|
Default: the power connector test is performed.
|
|
|
|
|
|
Option "XvmcUsesTextures" "boolean"
|
|
|
Forces XvMC to use the 3D engine for XvMCPutSurface
|
|
|
requests rather than the video overlay. Default: video
|
|
|
overlay is used when available.
|
|
|
|
|
|
Option "AllowGLXWithComposite" "boolean"
|
|
|
Enables GLX even when the Composite X extension is loaded.
|
|
|
ENABLE AT YOUR OWN RISK. OpenGL applications will not
|
|
|
display correctly in many circumstances with this setting
|
|
|
enabled. Default: GLX is disabled when Composite is
|
|
|
loaded.
|
|
|
|
|
|
Option "ExactModeTimingsDVI" "boolean"
|
|
|
Forces the initialization of the X server with the exact
|
|
|
timings specified in the ModeLine. Default: For DVI
|
|
|
devices, the X server inilializes with the closest mode in
|
|
|
the EDID list.
|
|
|
|
|
|
|
|
|
Driver radeon:
|
|
|
---------------
|
|
|
(source: manpage radeon)
|
|
|
|
|
|
Option "SWcursor" "boolean"
|
|
|
Selects software cursor. The default is off.
|
|
|
|
|
|
Option "NoAccel" "boolean"
|
|
|
Enables or disables all hardware acceleration.
|
|
|
The default is to enable hardware acceleration.
|
|
|
|
|
|
Option "Dac6Bit" "boolean"
|
|
|
Enables or disables the use of 6 bits per color component when in 8
|
|
|
bpp mode (emulates VGA mode). By default, all 8 bits per color com-
|
|
|
ponent are used.
|
|
|
The default is off.
|
|
|
|
|
|
Option "VideoKey" "integer"
|
|
|
This overrides the default pixel value for the YUV video overlay key.
|
|
|
The default value is 0x1E.
|
|
|
|
|
|
Option "UseFBDev" "boolean"
|
|
|
Enable or disable use of an OS-specific framebuffer device interface
|
|
|
(which is not supported on all OSs). MergedFB does not work when
|
|
|
this option is in use. See fbdevhw(4x) for further information.
|
|
|
The default is off.
|
|
|
|
|
|
Option "AGPMode" "integer"
|
|
|
Set AGP data transfer rate. (used only when DRI is enabled)
|
|
|
1 -- x1 (default)
|
|
|
2 -- x2
|
|
|
4 -- x4
|
|
|
others -- invalid
|
|
|
|
|
|
Option "AGPFastWrite" "boolean"
|
|
|
Enable AGP fast write.
|
|
|
(used only when DRI is enabled)
|
|
|
The default is off.
|
|
|
|
|
|
Option "BusType" "string"
|
|
|
Used to replace previous ForcePCIMode option. Should only be used
|
|
|
when driver’s bus detection is incorrect or you want to force a AGP
|
|
|
card to PCI mode. Should NEVER force a PCI card to AGP bus.
|
|
|
PCI -- PCI bus
|
|
|
AGP -- AGP bus
|
|
|
PCIE -- PCI Express (falls back to PCI at present)
|
|
|
(used only when DRI is enabled)
|
|
|
The default is auto detect.
|
|
|
|
|
|
Option "DDCMode" "boolean"
|
|
|
Force to use the modes queried from the connected monitor.
|
|
|
The default is off.
|
|
|
|
|
|
Option "DisplayPriority" "string"
|
|
|
Used to prevent flickering or tearing problem caused by display
|
|
|
buffer underflow.
|
|
|
AUTO -- Driver calculated (default).
|
|
|
BIOS -- Remain unchanged from BIOS setting.
|
|
|
Use this if the calculation is not correct
|
|
|
for your card.
|
|
|
HIGH -- Force to the highest priority.
|
|
|
Use this if you have problem with above options.
|
|
|
This may affect performence slightly.
|
|
|
The default value is AUTO.
|
|
|
|
|
|
Option "MonitorLayout" "string"
|
|
|
This option is used to overwrite the detected monitor types. This is
|
|
|
only required when driver makes a false detection. The possible mon-
|
|
|
itor types are:
|
|
|
NONE -- Not connected
|
|
|
CRT -- Analog CRT monitor
|
|
|
TMDS -- Desktop flat panel
|
|
|
LVDS -- Laptop flat panel
|
|
|
This option can be used in following format:
|
|
|
Option "MonitorLayout" "[type on primary], [type on secondary]"
|
|
|
For example, Option "MonitorLayout" "CRT, TMDS"
|
|
|
|
|
|
Primary/Secondary head for dual-head cards:
|
|
|
(when only one port is used, it will be treated as the primary
|
|
|
regardless)
|
|
|
Primary head:
|
|
|
DVI port on DVI+VGA cards
|
|
|
LCD output on laptops
|
|
|
Internal TMDS port on DVI+DVI cards
|
|
|
Secondary head:
|
|
|
VGA port on DVI+VGA cards
|
|
|
VGA port on laptops
|
|
|
External TMDS port on DVI+DVI cards
|
|
|
|
|
|
The default value is undefined.
|
|
|
|
|
|
Option "MergedFB" "boolean"
|
|
|
This enables merged framebuffer mode. In this mode you have a single
|
|
|
shared framebuffer with two viewports looking into it. It is similar
|
|
|
to Xinerama, but has some advantages. It is faster than Xinerama,
|
|
|
the DRI works on both heads, and it supports clone modes.
|
|
|
Merged framebuffer mode provides two linked viewports looking into a
|
|
|
single large shared framebuffer. The size of the framebuffer is
|
|
|
determined by the Virtual keyword defined on the Screen section of
|
|
|
your XF86Config file. It works just like regular virtual desktop
|
|
|
except you have two viewports looking into it instead of one.
|
|
|
For example, if you wanted a desktop composed of two 1024x768 view-
|
|
|
ports looking into a single desktop you would create a virtual desk-
|
|
|
top of 2048x768 (left/right) or 1024x1536 (above/below), e.g.,
|
|
|
Virtual 2048 768 or Virtual 1024 1536
|
|
|
The virtual desktop can be larger than larger than the size of the
|
|
|
viewports looking into it. In this case the linked viewports will
|
|
|
scroll around in the virtual desktop. Viewports with different sizes
|
|
|
are also supported (e.g., one that is 1024x768 and one that is
|
|
|
640x480). In this case the smaller viewport will scroll relative to
|
|
|
the larger one such that none of the virtual desktop is inaccessable.
|
|
|
If you do not define a virtual desktop the driver will create one
|
|
|
based on the orientation of the heads and size of the largest defined
|
|
|
mode in the display section that is supported on each head.
|
|
|
The relation of the viewports in specified by the CRT2Position
|
|
|
Option. The options are Clone , LeftOf , RightOf , Above , and
|
|
|
Below. MergedFB is enabled by default if a monitor is detected on
|
|
|
each output. If no position is given it defaults to clone mode (the
|
|
|
old clone options are now deprecated, also, the option OverlayOnCRTC2
|
|
|
has been replaced by the Xv attribute XV_SWITCHCRT; the overlay can
|
|
|
be switched to CRT1 or CRT2 on the fly in clone mode).
|
|
|
The maximum framebuffer size that the 2D acceleration engine can han-
|
|
|
dle is 8192x8192. The maximum framebuffer size that the 3D engine
|
|
|
can handle is 2048x2048.
|
|
|
Note: Page flipping does not work well in certain configurations with
|
|
|
MergedFB. If you see rendering errors or other strange behavior,
|
|
|
disable page flipping. Also MergedFB is not compatible with the UseF-
|
|
|
BDev option.
|
|
|
The default value is undefined.
|
|
|
|
|
|
Option "CRT2HSync" "string"
|
|
|
Set the horizontal sync range for the secondary monitor. It is not
|
|
|
required if a DDC-capable monitor is connected.
|
|
|
For example, Option "CRT2HSync" "30.0-86.0"
|
|
|
The default value is undefined.
|
|
|
|
|
|
Option "CRT2VRefresh" "string"
|
|
|
Set the vertical refresh range for the secondary monitor. It is not
|
|
|
required if a DDC-capable monitor is connected.
|
|
|
For example, Option "CRT2VRefresh" "50.0-120.0"
|
|
|
The default value is undefined.
|
|
|
|
|
|
Option "CRT2Position" "string"
|
|
|
Set the relationship of CRT2 relative to CRT1. Valid options are:
|
|
|
Clone , LeftOf , RightOf , Above , and Below
|
|
|
For example, Option "CRT2Position" "RightOf"
|
|
|
The default value is Clone.
|
|
|
|
|
|
Option "MetaModes" "string"
|
|
|
MetaModes are mode combinations for CRT1 and CRT2. If you are using
|
|
|
merged frame buffer mode and want to change modes (CTRL-ALT-+/-),
|
|
|
these define which modes will be switched to on CRT1 and CRT2. The
|
|
|
MetaModes are defined as CRT1Mode-CRT2Mode (800x600-1024x768). Modes
|
|
|
listed individually (800x600) define clone modes, that way you can
|
|
|
mix clone modes with non-clone modes. Also some programs require
|
|
|
"standard" modes.
|
|
|
Note: Any mode you use in the MetaModes must be defined in the
|
|
|
Screen section of your XF86Config file. Modes not defined there will
|
|
|
be ignored when the MetaModes are parsed since the driver uses them
|
|
|
to make sure the monitors can handle those modes. If you do not
|
|
|
define a MetaMode the driver will create one based on the orientation
|
|
|
of the heads and size of the largest defined mode in the display sec-
|
|
|
tion that is supported on each head.
|
|
|
Modes 1024x768 800x600 640x480
|
|
|
For example, Option "MetaModes" "1024x768-1024x768 800x600-1024x768
|
|
|
640x480-800x600 800x600"
|
|
|
The default value is undefined.
|
|
|
|
|
|
Option "OverlayOnCRTC2" "boolean"
|
|
|
Force hardware overlay to clone head.
|
|
|
The default value is off.
|
|
|
|
|
|
Option "NoMergedXinerama" "boolean"
|
|
|
Since merged framebuffer mode does not use Xinerama, apps are not
|
|
|
able to intelligently place windows. Merged framebuffer mode pro-
|
|
|
vides its own pseudo-Xinerama. This allows Xinerama compliant appli-
|
|
|
cations to place windows appropriately. There are some caveats.
|
|
|
Since merged framebuffer mode is able to change relative screen sizes
|
|
|
and orientations on the fly, as well has having overlapping view-
|
|
|
ports, pseudo-Xinerama, might not always provide the right hints.
|
|
|
Also many Xinerama compliant applications only query Xinerama once at
|
|
|
startup; if the information changes, they may not be aware of the
|
|
|
change. If you are already using Xinerama (e.g., a single head card
|
|
|
and a dualhead card providing three heads), pseudo-Xinerama will be
|
|
|
disabled.
|
|
|
This option allows you turn off the driver provided pseudo-Xinerama
|
|
|
extension.
|
|
|
The default value is FALSE.
|
|
|
|
|
|
Option "MergedXineramaCRT2IsScreen0" "boolean"
|
|
|
By default the pseudo-Xinerama provided by the driver makes the left-
|
|
|
most or bottom head Xinerama screen 0. Certain Xinerama-aware appli-
|
|
|
cations do special things with screen 0. To change that behavior,
|
|
|
use this option.
|
|
|
The default value is undefined.
|
|
|
|
|
|
Option "MergedDPI" "string"
|
|
|
The driver will attempt to figure out an appropriate DPI based on the
|
|
|
DDC information and the orientation of the heads when in merged
|
|
|
framebuffer mode. If this value does not suit you, you can manually
|
|
|
set the DPI using this option.
|
|
|
For example, Option "MergedDPI" "100 100"
|
|
|
The default value is undefined.
|
|
|
|
|
|
Option "IgnoreEDID" "boolean"
|
|
|
Do not use EDID data for mode validation, but DDC is still used for
|
|
|
monitor detection. This is different from NoDDC option.
|
|
|
The default value is off.
|
|
|
|
|
|
Option "PanelSize" "string"
|
|
|
Should only be used when driver cannot detect the correct panel size.
|
|
|
Apply to both desktop (TMDS) and laptop (LVDS) digital panels. When
|
|
|
a valid panel size is specified, the timings collected from DDC and
|
|
|
BIOS will not be used. If you have a panel with timings different
|
|
|
from that of a standard VESA mode, you have to provide this informa-
|
|
|
tion through the Modeline.
|
|
|
For example, Option "PanelSize" "1400x1050"
|
|
|
The default value is none.
|
|
|
|
|
|
Option "PanelOff" "boolean"
|
|
|
Disable panel output.
|
|
|
The default value is off.
|
|
|
|
|
|
Option "EnablePageFlip" "boolean"
|
|
|
Enable page flipping for 3D acceleration. This will increase perfor-
|
|
|
mance but not work correctly in some rare cases, hence the default is
|
|
|
off.
|
|
|
Note: Page flipping does not work well in certain configurations with
|
|
|
MergedFB. If you see rendering errors or other strange behavior,
|
|
|
disable page flipping.
|
|
|
|
|
|
Option "ForceMinDotClock" "frequency"
|
|
|
Override minimum dot clock. Some Radeon BIOSes report a minimum dot
|
|
|
clock unsuitable (too high) for use with television sets even when
|
|
|
they actually can produce lower dot clocks. If this is the case you
|
|
|
can override the value here. Note that using this option may damage
|
|
|
your hardware. You have been warned. The frequency parameter may be
|
|
|
specified as a float value with standard suffixes like "k", "kHz",
|
|
|
"M", "MHz".
|
|
|
|
|
|
Option "RenderAccel" "boolean"
|
|
|
Enables or disables hardware Render acceleration. This driver does
|
|
|
not support component alpha (subpixel) rendering. It is only sup-
|
|
|
ported on Radeon series up to and including 9200 (9500/9700 and newer
|
|
|
unsupported). The default is to enable Render acceleration.
|
|
|
|
|
|
Option "SubPixelOrder" "string"
|
|
|
Force subpixel order to specified order. Subpixel order is used for
|
|
|
subpixel decimation on flat panels.
|
|
|
NONE -- No subpixel (CRT like displays)
|
|
|
RGB -- in horizontal RGB order (most flat panels)
|
|
|
BGR -- in horizontal BGR order (some flat panels)
|
|
|
|
|
|
This option is intended to be used in following cases:
|
|
|
1. The default subpixel order is incorrect for your panel.
|
|
|
2. Enable subpixel decimation on analog panels.
|
|
|
3. Adjust to one display type in dual-head clone mode setup.
|
|
|
4. Get better performance with Render acceleration on digital panels
|
|
|
(use NONE setting).
|
|
|
The default is NONE for CRT, RGB for digital panels
|
|
|
|
|
|
Option "DynamicClocks" "boolean"
|
|
|
Enable dynamic clock scaling. The on-chip clocks will scale dynami-
|
|
|
cally based on usage. This can help reduce heat and increase battery
|
|
|
life by reducing power usage. Some users report reduced 3D prefor-
|
|
|
mance with this enabled. The default is off.
|
|
|
|
|
|
|
|
|
|
|
|
Driver sis:
|
|
|
------------
|
|
|
|
|
|
Option "NoAccel" "boolean"
|
|
|
Disable or enable 2D acceleration. Default: acceleration is enabled.
|
|
|
|
|
|
Option "HWCursor" "boolean"
|
|
|
Enable or disable the HW cursor. Default: HWCursor is on.
|
|
|
|
|
|
Option "SWCursor" "boolean"
|
|
|
The opposite of HWCursor. Default: SWCursor is off.
|
|
|
|
|
|
Option "Rotate" "CW"
|
|
|
Rotate the display clockwise. This mode is unaccelerated, and uses
|
|
|
the Shadow Frame Buffer layer. Using this option disables the Resize
|
|
|
and Rotate extension (RandR). Default: no rotation.
|
|
|
|
|
|
Option "Rotate" "CCW"
|
|
|
Rotate the display counterclockwise. This mode is unaccelerated, and
|
|
|
uses the Shadow Frame Buffer layer. Using this option disables the
|
|
|
Resize and Rotate extension (RandR). Default: no rotation.
|
|
|
|
|
|
Option "ShadowFB" "boolean"
|
|
|
Enable or disable use of the shadow framebuffer layer. Default:
|
|
|
Shadow framebuffer is off.
|
|
|
|
|
|
Option "CRT1Gamma" "boolean"
|
|
|
Enable or disable gamma correction. Default: Gamma correction is on.
|
|
|
|
|
|
|
|
|
|
|
|
Driver vesa:
|
|
|
-------------
|
|
|
(source: man vesa)
|
|
|
|
|
|
Option "ShadowFB" "boolean"
|
|
|
Enable or disable use of the shadow framebuffer layer. Default: on.
|
|
|
This option is recommended for performance reasons.
|
|
|
|
