http://somebugreport --- kdebase-workspace-4.3.4/libs/solid/control/powermanager.cpp.old 2009-12-13 00:43:34.390816895 -0500 +++ kdebase-workspace-4.3.4/libs/solid/control/powermanager.cpp 2009-12-13 00:44:48.331544514 -0500 @@ -196,7 +196,7 @@ else { return_SOLID_CALL(Ifaces::PowerManager *, globalPowerManager->managerBackend(), - false, brightness(controls.keys().at(0))); + false, brightness(controls.keys(Solid::Control::PowerManager::Screen).at(0))); } } else