Please try to get a proper backtrace by following these instructions: https://wiki.ubuntu.com/X/Backtracing
Maybe it is a good idea to check if this problem is fixed in the current upstream Intel driver release 2.3.1 too. ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: New => Incomplete -- Computer hard-locks if video overlay is used with compiz [i855GME] https://bugs.launchpad.net/bugs/222179 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