Also worth mentioning is that I'm also getting i915 related errors in syslog which actually did not cause any problems in the UI. All entries mentioned in the attached file for example - I just happened to see them because I had the Log File Viewer open at that moment, but the machine and UI just kept going without any noticeable problem.
** Attachment added: "20130128 12h21m10s non-fatal, silent i915 crash.txt" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/975083/+attachment/3504569/+files/20130128%2012h21m10s%20non-fatal%2C%20silent%20i915%20crash.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/975083 Title: [sandybridge-gt1] GPU lockup with WARNING: at /build/buildd/linux-3.2.0/drivers/gpu/drm/i915/i915_drv.c:413 __gen6_gt_wait_for_fifo+0x94/0xa0 [i915]() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/975083/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs