Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

The Screen freezes with the exception of movement by mouse, I went to a virtual tty with Ctrl+Alt+f2 and reran Unity which unfroze the desktop.

This is the tail of my /var/log/syslog:

praveen@praveen-XPS-L412Z:~$ tail -f /var/log/syslog
Jun 10 11:17:01 praveen-XPS-L412Z CRON[25625]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Jun 10 11:22:15 praveen-XPS-L412Z kernel: [ 6184.595684] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
Jun 10 11:22:15 praveen-XPS-L412Z kernel: [ 6184.595690] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state
Jun 10 11:23:17 praveen-XPS-L412Z gnome-session[7781]: WARNING: Application 'compiz.desktop' killed by signal 9
Jun 10 11:23:17 praveen-XPS-L412Z gnome-session[7781]: WARNING: App 'compiz.desktop' respawning too quickly
Jun 10 11:23:17 praveen-XPS-L412Z gnome-session[7781]: CRITICAL: We failed, but the fail whale is dead. Sorry....
Jun 10 11:23:18 praveen-XPS-L412Z gnome-session[7781]: WARNING: App 'compiz.desktop' respawning too quickly

Please let me know about a permanent fix as this recurs.

share|improve this question
    
I got this error with Ubuntu 12.10 64 bit, and fixed it with sudo apt-get update and sudo apt-get dist-upgrade installing everything it recommended, and rebooting. –  Eric Leschinski Jan 5 at 16:27
add comment

closed as off-topic by Jorge Castro, Mateo, Warren Hill, Eliah Kagan, Basharat Sial Jul 17 '13 at 7:44

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Bug reports and problems with the development version of Ubuntu should be reported on Launchpad so that developers can see, track and fix these issues." – Jorge Castro, Mateo, Warren Hill, Eliah Kagan, Basharat Sial
If this question can be reworded to fit the rules in the help center, please edit the question.

Browse other questions tagged or ask your own question.