*** This bug is a duplicate of bug 528467 *** https://bugs.launchpad.net/bugs/528467
After adding the PPA from https://launchpad.net/~ubuntu-x-swat/+archive/x-updates and upgrading at least OsmosDemo launches without any lockups, so this seems to have fixed the problem for me. -- display freezes, [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung https://bugs.launchpad.net/bugs/507504 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