Here is word from upstream on a different (but perhaps related) bug report:
"Bryce, for all the 915/945 bugs can you please have the reporters test the latest kernel with the enlarged unfenced alignment. That's the most likely cause of random writes, though I don't suspect it in this case." ** Summary changed: - [i915gm] GPU lockup 554e2b4b (ESR: 0x00000001 IPEHR: 0x7f9c002d) + [i915gm] GPU lockup (ESR: 0x00000001 IPEHR: 0x7f9c002d) ** Changed in: xserver-xorg-video-intel (Ubuntu) Importance: Undecided => High ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Confirmed => Triaged -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. https://bugs.launchpad.net/bugs/720468 Title: [i915gm] GPU lockup (ESR: 0x00000001 IPEHR: 0x7f9c002d) _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp