Another data point; I had posted over at http://ubuntuforums.org/showthread.php?t=2168780, but recently found this bug based on kernel crash syslog entries.
Anyway, I'm on a Macbook 4,2 FWIW: $ uname -a Linux cle-mba 3.8.0-29-generic #42-Ubuntu SMP Tue Aug 13 19:40:39 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux partial syslog: Aug 22 05:26:55 cle-mba kernel: [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.8.0-29-generic root=UUID=748df707-f110-49e0-b603-7ca1439341d8 ro quiet splash resume=/dev/sda3 vt.handoff=7 Aug 22 13:17:49 cle-mba kernel: [78499.977886] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung Aug 22 13:17:49 cle-mba kernel: [78499.977892] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state Attached i915_error_state from the same event. Note that I used to have i915.i915_enable_rc6=0 in my grub options, but removed it in an attempt to eliminate the hangs/crashes based on recommendations on a random forum thread. :-P Behaviour has been unaffected; I get a GPU hang or window manager crash (i.e. have to "recover" via tty1) ~every other day. ** Attachment added: "i915_error_state-20130822" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/946899/+attachment/3784010/+files/i915_error_state-20130822 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/946899 Title: [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/946899/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
