Comment 7 for bug 388357

Ubuntu bugs with similar backtraces which I suspect are dupes:

  https://bugs.edge.launchpad.net/ubuntu/+source/linux/+bug/383973
  Freeze when trying to resume from a blanked screen

  https://bugs.edge.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/383822
  Freeze when trying to resume from screensaver

  https://bugs.edge.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/384242
  Freeze after DPMS has kicked in

  https://bugs.edge.launchpad.net/ubuntu/+source/linux/+bug/384865
  kernel oops with intel graphics when screensaver turns screen off