I just hit this same IPEHR error on quantal with my i965gm based thinkpad X61. Got a new patch from upstream, and will upload it to quantal & precise soon..
** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Confirmed => In Progress ** Changed in: xserver-xorg-video-intel (Ubuntu) Assignee: (unassigned) => Timo Aaltonen (tjaalton) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/912134 Title: [arrandale] GPU lockup render.IPEHR: 0x01840000 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/912134/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs