Managed to reproduce this and the problem lies in mesa. 7.11.0+git20110325.226ae9d6-0ubuntu0sarvatt works properly.
** Package changed: xserver-xorg-video-intel (Ubuntu) => mesa (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/739801 Title: [sandybridge-gt1] GPU lockup (IPEHR: 0x02000004) -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
