*** This bug is a duplicate of bug 388357 ***
https://bugs.launchpad.net/bugs/388357
** This bug has been marked a duplicate of bug 388357
[i965] X freeze on karmic after resume from full screen application:
i915_gem_retire_work_handler() / finish_task_switch()
--
karmic screen goes blac
This bug looks a lot like bug 388357, bug 384960, and bug 390917, which
were all fixed by the updated driver in the x-updates respository
https://launchpad.net/~ubuntu-x-swat/+archive/x-updates/ . Could you
check if this version xserver-xorg-video-
intel_2.7.99.901+git20090702.74227141-0ubuntu1 als