cd /etc/kde4/kdm sudo kate kdmrcOnce the file is loaded, find the [Shutdown] section and complete the following changes on the
HaltCmd=/sbin/shutdown -h -P now RebootCmd=/sbin/shutdown -r nowSave your work and reboot. REDUCE AMAROK MEMORY HUNGER Amarok can do lots of things very well, but it is clearly not the lightest of audio players. This is obviously not an issue specific to Kubuntu, but since Amarok comes as its default audio player, it is good for Kubuntu users to ensure it doesn't bite more resources than it should. The default Amarok settings have many plugins and services enabled that may or may not be useful for end users. In my case, a vast majority of them are not, for I am solely interested in playing my local collection. If this is your case as well, there are lots of resource-eating options you can live without. Simply untick them as I did in the screenshot above, then restart Amarok.