Eh, maybe it is a dup. I'll include my info here; I just reproduced it this evening accidentally.
** Attachment added: "syslog entries as things were hanging" http://launchpadlibrarian.net/28346969/logstuff -- [i965] X freeze on karmic after resume from full screen application: i915_gem_retire_work_handler() / finish_task_switch() https://bugs.launchpad.net/bugs/388357 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs