I recreated the problem several times (each time I enable desktop effects), but all times resulted in a completely nonresponsive system - the mouse cursor moves, but neither keyboard nor mouse actions do anything. so I couldn't get to Xorg.0.log from within the problem state, but I've attached one from the next boot in case there's something useful about the system configuration there. I haven't modified xorg.conf manually, but I've used nvidia-settings which modifies it, I'll attach it as well.
If I manage to get to the 100% cpu scenario again in which I can ever so slowly get to a console, I'll try to grab the logs - but I don't know how to recreate it specifically - as before, each time I turned on desktop effects resulted in one of the 3 different corrupt/stuck states in the original report. for the benefit of others having the problem and reading this report, the way to get back to a usable system: 1. reboot 2. do not log in to KDE, rather press ctrl-alt-F1 and log in at the console 3. edit the configuration file ~/.kde/share/config/kwinrc (e.g. using vi) 4. under the [compositing] header, find the line reading "Enabled=true" and change it to "Enabled=false" 5. save the file 6. reboot (from the console, type "sudo reboot" and enter your password) 7. now u can log in normally (with desktop effects disabled) ** Attachment added: "requested Xorg.0.log" http://launchpadlibrarian.net/26436464/report.Xorg.0.log -- kubuntu unusable with desktop effects - xorg takes 100% cpu https://bugs.launchpad.net/bugs/357577 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
