Probably a kernel regression in drm. Not much has changed on the X side since the quantal release.
Tried rebooting against the quantal kernel? Assuming that works, bisect using http://kernel.ubuntu.com/~kernel-ppa/mainline/ would be the next easiest. Or a full git bisection search if you'd prefer. ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags added: kernel-handoff-graphics ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Confirmed => Incomplete ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Changed in: xserver-xorg-video-intel (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1081009 Title: [arrandale] GPU lockup IPEHR: 0x02000022 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1081009/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
