I face the same issue on a fresh installed ubuntu 14.10 with a celeron haswell processor, especially when browsing with firefox it sometimes happens.
[ 1045.621449] [drm] stuck on render ring [ 1045.623026] [drm] GPU HANG: ecode 0:0x87d3bffa, in Xorg [1123], reason: Ring hung, action: reset [ 1045.623035] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. [ 1045.623037] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel [ 1045.623039] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. [ 1045.623041] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. [ 1045.623044] [drm] GPU crash dump saved to /sys/class/drm/card0/error [ 1047.623048] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off [ 1952.317206] [drm] stuck on render ring [ 1952.318754] [drm] GPU HANG: ecode 0:0x87d3bffa, in Xorg [1123], reason: Ring hung, action: reset [ 1954.318777] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off [ 3392.453403] [drm] stuck on render ring [ 3392.454925] [drm] GPU HANG: ecode 0:0x87d3bffa, in Xorg [1123], reason: Ring hung, action: reset [ 3394.455101] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off Linux version 3.16.0-28-generic (buildd@komainu) (gcc version 4.9.1 (Ubuntu 4.9.1-16ubuntu6) ) #38-Ubuntu SMP Fri Dec 12 17:37:40 UTC 2014 ** Attachment added: "crash dump" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1282867/+attachment/4295201/+files/error -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1282867 Title: Frequent hang and render glitches in Xorg, caused by SNA To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1282867/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
