After half a day of working on 3.8.13-030813-generic, got the "[drm:i915_hangcheck_hung]" again. At least it was sort-of recoverable, as I was able to log into another tty and backup i915_error_state (attached). Hope it helps someone for diagnosing the problem. When returning to tty7, Screen was still flackering whenever I moved the mouse, and it didn't seem to respond to any clicks, so I had to logout by CTRL+ALT+DEL and then I could log back in without problems.
** Attachment added: "i915_error_state" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/946899/+attachment/3792231/+files/i915_error_state -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/946899 Title: [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/946899/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
