diff --git a/tdecore/tdehw/tdehardwaredevices.cpp b/tdecore/tdehw/tdehardwaredevices.cpp
index b700ac3ab..f0069d38f 100644
--- a/tdecore/tdehw/tdehardwaredevices.cpp
+++ b/tdecore/tdehw/tdehardwaredevices.cpp
@@ -199,7 +199,7 @@ TDEHardwareDevices::TDEHardwareDevices() {
 		m_deviceWatchTimer = new TQTimer(this);
 		connect( m_deviceWatchTimer, SIGNAL(timeout()), this, SLOT(processStatelessDevices()) );
 
-		// Special case for battery polling (longer delay, 5 seconds)
+		// Special case for battery and power supply polling (longer delay, 5 seconds)
 		m_batteryWatchTimer = new TQTimer(this);
 		connect( m_batteryWatchTimer, SIGNAL(timeout()), this, SLOT(processBatteryDevices()) );
 
@@ -906,6 +906,15 @@ void TDEHardwareDevices::processBatteryDevices() {
 			emit hardwareUpdated(hwdevice);
 			emit hardwareEvent(TDEHardwareEvent::HardwareUpdated, hwdevice->uniqueID());
 		}
+		else if (hwdevice->type() == TDEGenericDeviceType::PowerSupply) {
+			TDEMainsPowerDevice *pdevice = dynamic_cast<TDEMainsPowerDevice*>(hwdevice);
+			int previousOnlineState = pdevice->online();
+			rescanDeviceInformation(hwdevice, false);
+			if (pdevice->online() != previousOnlineState) {
+				emit hardwareUpdated(hwdevice);
+				emit hardwareEvent(TDEHardwareEvent::HardwareUpdated, hwdevice->uniqueID());
+			}
+		}
 	}
 }