I can also reproduce the bug using the new Google Maps (easiest way to do so seems to be zooming in/out). However it occurs for me even after I disable semaphores:
root@hawty:~# cat /sys/module/i915/parameters/semaphores 0 (after that): [614445.590357] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [614445.590468] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x5268000 ctx 10) at 0x5268210 this is ubuntu 13.04 with 2.21.6-0ubuntu4 intel driver, but kernel 3.11.1. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1041790 Title: [snb] GPU lockup IPEHR: 0x0b160001 IPEHR: 0x0b140001, workaround i915.semaphores=0 To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1041790/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs