On quantal with kernel 3.5.7-03050708-generic #201303180635 SMP, I already got 2 hangups in 2 hours. Not fixed.
[ 1618.193319] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung [ 1618.193335] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state [ 1618.200630] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off [ 5016.818088] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung [ 5016.818342] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1140716 Title: [regression] 3.5.0-26-generic GPU hangs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1140716/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs