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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - System hangs randomly with error message: [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle"
href="https://bugs.freedesktop.org/show_bug.cgi?id=75394#c55">Comment # 55</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - System hangs randomly with error message: [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle"
href="https://bugs.freedesktop.org/show_bug.cgi?id=75394">bug 75394</a>
from <span class="vcard"><a class="email" href="mailto:cpollock@embarqmail.com" title="Chris <cpollock@embarqmail.com>"> <span class="fn">Chris</span></a>
</span></b>
<pre>I should have posted this info here earlier but wanted to wait to see how it
was going to work out. After getting really frustrated about this I went here -
<a href="http://lists.freedesktop.org/mailman/listinfo/intel-gfx">http://lists.freedesktop.org/mailman/listinfo/intel-gfx</a> and joined the
intel-gfx mailing list. The main part of the post I made there on 25 March was:
"I am hoping that by joining this list I can get some kind of assistance
with this bug in the subject line. Every one to one and a half days my
system will just lockup with a black screen and only the mouse cursor
shown. It can be moved but will not go to the desktop. I can CTRL>ALT>F1
to a terminal and login then run sudo reboot and reboot the system. The
complete error shown in my syslog is:
kernel: [93991.808012] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck
timer elapsed... render ring idle
I have filed a bug report at the Ubuntu Launchpad for this -
<a href="https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1402331">https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1402331</a> and also
have added information to the one opened at freedesktop.org -
<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - System hangs randomly with error message: [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle"
href="show_bug.cgi?id=75394">https://bugs.freedesktop.org/show_bug.cgi?id=75394</a>
This all started somewhere around kernel version 3.13.0-35 and has
progressed from there. I have noticed a lockup in all of these kernel
versions which I have tested:" (here I listed all the kernels I've tried)
Almost immediately I received a reply referencing the running of the latest
Ubuntu drm/intel kernel which can be found here -
<a href="http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-next/">http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-next/</a> (I'm currently
running the one dated 31 March still). At the suggestion of the list I've also
updated xserver-xorg-video-intel however before you do anything I suggest that
you join the list and ask your question there. Give as much information as
possible. I ran 'sudo lshw' and attached the output to my first post there
about the issue. That I'm sure will help in possibly identifying what the
problem might be.</pre>
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