On 30 March 2013 13:06, mick mbm@rlogin.net wrote:
The only obvious common element there is KDE. What happens if you boot from a live CD/DVD/USB stick with another desktop (say Xubuntu 13.04)?
Good question, I will try to give that a try. Actually, running from a Kubuntu live CD would be useful diagnostically to see if it's something else I have installed.
CPU was at ~100% this morning; the PC's been unused (but left running) since Thursday.
Also what is the full command line shown for Xorg (running htop, ps -ef or ps aux or pressing "c" in top will show more detail than bare top alone). Maybe the KDE display manager is playing up.
root 1359 1326 68 Mar28 tty7 3-08:57:19 /usr/bin/X :0 -core -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch -background none