ubuntu-x-swat team mailing list archive

[Geir Ove Myhr <gomyhr@xxxxxxxxx>]

I would usually say that mesa was the most likely suspect from the list
from 2010-05-06, but looking at the changelog
(https://launchpad.net/ubuntu/+source/mesa/7.7.1-1ubuntu3) it is clear
that that upgrade does not change anything on intel hardware.

I am a bit surprised about the behaviour describe. Usually, these
messages in dmesg output

[ 8240.845026] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
[ 8240.845038] render error detected, EIR: 0x00000000
[ 8240.845186] [drm:i915_do_wait_request] *ERROR* i915_do_wait_request returns -5 (awaiting 730176 at 730170)

is associated with the display freezing and only a restart would recover
that.

I'm not sure if Apport will trigger on this kind of error (partly
because I'm not sure exactly what happens). Using the 2.6.34 kernel and
see if an error state is captured in /sys/kernel/debug/dri/0/error_state
(and attach it here if it is) may shed some light on this (see
https://wiki.ubuntu.com/X/Troubleshooting/Freeze#How%20to%20Get%20a%20Batchbuffer%20Dump%20%28-intel%20only%29).
You may enable automatic bug reporting for GPU errors by uncommenting
the last line in /lib/udev/rules.d/40-xserver-xorg-video-intel.rules,
but note that this change will be overwritten on package upgrade of
xserver-xorg-video-intel.

-- 
[i945gm] X crashes randomly (lucid)
https://bugs.launchpad.net/bugs/587708
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