Hi, I have a Sandy Bridge laptop with Gentoo Linux. After upgrading to linux-3.8-rc2 I started seeing GPU hangs, when viewing full screen video for a few seconds. [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state [drm:kick_ring] *ERROR* Kicking stuck wait on render ring I saw similar bug report for 3.2-rc6: https://lkml.org/lkml/2011/12/21/336 http://lists.freedesktop.org/archives/intel-gfx/2011-December/014072.html Reportedly turning off sepmaphores solved the issue in that case. I tried to to that as well, but no luck, so the bug doesn't seem to be semaphore related. I'm using xf86-video-intel 2.20.17, with SNA, and libdrm 2.4.40. Same setup works fine with 3.7.2. Anything else I can try to help fix this? Thanks, -Lori
