Gut instinct tells me that the garbage display is a secondary issue that occurs after we try to reset the GPU. It is either the lead up to the GPU reset (i.e. the hang) or the actual attempt at reseting that is likely to be the cause of the hard hang.
Can you please try i915.reset=0 (with either 3.8.2 or 3.8.3) and see if we can then get any logs from the death? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1137817 Title: [ivb] System freeze after high memory usage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1137817/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
