This sounds like a match to bug #419264. The symptoms are slightly different however the workaround (killing compiz) and the timing of your last update suggest it's probably the same bug. There is a kernel with a patch proposed for fixing this bug in the comments of bug #41926 - do you mind booting and testing that kernel to verify it does indeed solve the bug you're seeing?
-- Compiz locks up on resume from suspend (intel) https://bugs.launchpad.net/bugs/421736 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
