Interesting, you're definitely getting a GPU lockup: Xorg.0.log [ 339.944] [mi] EQ overflowing. Additional events will be discarded until existing events are processed. [ 339.944] Backtrace: [ 339.944] 0: /usr/bin/X (xorg_backtrace+0x37) [0xb7795007] [ 339.944] 1: /usr/bin/X (mieqEnqueue+0x223) [0xb7773353]
dmesg: [ 107.897744] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung [ 107.897804] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state [ 107.901347] [drm:i915_wait_request] *ERROR* i915_wait_request returns -11 (awaiting 17410 at 17406, next 17411) [ 243.583933] cfg80211: All devices are disconnected, going to restore regulatory settings That means X.org couldn't write to the GPU's memory, which is a symptom of a hung GPU. However: Time: 1331732836 s 509176 us PCI ID: 0x0116 EIR: 0x00000000 PGTBL_ER: 0x00000000 ERROR: 0x00000000 I assume you gathered these by ssh'ing in when the system was hung? In both your i915_error_state files, there are no errors registered, just 0's which indicate the GPU isn't hung on a software error. Any chance it could be a hardware error? Try booting an older ubuntu livecd from before you started noticing the error, like alpha2, and see if it reproduces there. If so, a hardware problem might be a good guess, so keep an eye on the cpu temperature and see if you have a bad fan or some such. If it doesn't reproduce on the older ubuntu, then the kernel would be the next thing to look at. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/954293 Title: [regression] Xorg freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/954293/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
