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[Holger Mauermann <mauermann@xxxxxxxxx>]

Public bug reported:

Binary package hint: xorg

If I don't use the computer for a while, the monitor goes to standby to
save power. When I later come back I get the login screen because the
previously running session is crashed. However, this is not
reproducible, it seems to happen randomly since upgrading to Lucid.

uname -a:
-------------
Linux core 2.6.32-19-generic #28-Ubuntu SMP Thu Apr 1 10:39:41 UTC 2010 x86_64 GNU/Linux

/var/log/kern.log:
---------------------
Apr  5 10:01:43 core kernel: [37747.500021] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
Apr  5 10:01:43 core kernel: [37747.500030] render error detected, EIR: 0x00000000
Apr  5 10:01:43 core kernel: [37747.500044] [drm:i915_do_wait_request] *ERROR* i915_do_wait_request returns -5 (awaiting 4800864 at 4800863)
Apr  5 10:01:44 core kernel: [37748.300016] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
Apr  5 10:01:44 core kernel: [37748.300022] render error detected, EIR: 0x00000000
Apr  5 10:01:44 core kernel: [37748.300043] [drm:i915_do_wait_request] *ERROR* i915_do_wait_request returns -5 (awaiting 4800867 at 4800863)

/var/log/Xorg.0.log:
------------------------
Fatal server error:
Failed to submit batchbuffer: Input/output error

Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
Please also check the log file at "/var/log/Xorg.0.log" for additional information.

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New

-- 
X server crash when monitor goes to standby
https://bugs.launchpad.net/bugs/555573
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