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[Prunus dulcis <733192@xxxxxxxxxxxxxxxxxx>]

I am getting this bug about every once a week - sometimes taking
document progress with it. I made a video of how it looks for me.

dmesg brought up the following errors:
[drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
[drm:i915_reset] *ERROR* i915_do_wait_request returns -11 (awaiting 5337284 at 5337277, next 5337285)
[drm:i915_reset] *ERROR* Failed to reset chip.
show_signal_msg: 15 callbacks suppressed
compiz[1544]: segfault at 8 ip b712b1b1 sp bfac51e0 error 6 in libc-2.13.so[b7016000+15a000]
[drm:drm_mode_getfb] *ERROR* invalid frambuffer id

Then I tried to ressurect unity-window decorator
unity-window-decorator --replace&disown
[1] 7402
(unity-window-decorarotr:7402): Gtk-WARNING **: cannot open display:
_

I was also using java applications at that time, which also sometimes
crash unity-window-decorator but most of the times, just the window-
borders and decorations crash and I can recover / replace them with
above command. Not when it flashes like in the video though...

** Attachment added: "Short clip of the desktop border and programs flashing issue"
   https://bugs.launchpad.net/ubuntu/+source/nux/+bug/733192/+attachment/2177994/+files/PICT0769.MOV

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https://bugs.launchpad.net/bugs/733192

Title:
  compiz crashed with SIGSEGV in brw_upload_state()

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