Hello, I noticed that tdehwlib dbus daemon is not running, although it is properly installed. When I tried to check it via dbus-send, I got the answer: Error org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1 When I tried to run it manually in the console, the crash not occurred, but apparently not implemented parts that might be useful: [tde_dbus_hardwarecontrol] Unknown method 'NameAcquired' called on interface 'org.freedesktop.DBus', ignoring [tde_dbus_hardwarecontrol] Unknown method 'Introspect' called on interface 'org.freedesktop.DBus.Introspectable', ignoring Setting the brightness and governor therefore cannot work. Slavek