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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Periodically video will freeze for no specific reason."
href="https://bugs.freedesktop.org/show_bug.cgi?id=91495">91495</a>
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<th>Summary</th>
<td>Periodically video will freeze for no specific reason.
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/Intel
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>cpollock@embarqmail.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=117428" name="attach_117428" title="Xorg GDB backtrace output">attachment 117428</a> <a href="attachment.cgi?id=117428&action=edit" title="Xorg GDB backtrace output">[details]</a></span>
Xorg GDB backtrace output
Video will freeze for no specific reason and an no particular time interval.
Although it does seem to happen most often when using Facebook or Twitter with
Firefox the freeze today was when I was going to print a webpage from within
Firefox. When the freeze happens all other background processes such as
Fetchmail, Procmail, Postfix and others operate as normal. The freeze today
took place at 15:36:03 CDT and I've noticed in my Syslog that at 16:02:28 there
was this entry:
Jul 28 16:02:28 localhost kernel: [793861.820048] [drm:i915_hangcheck_elapsed
[i915]] *ERROR* Hangcheck timer elapsed... render ring idle
I was able to SSH into the desktop via my tablet and did a reboot from there at
16:10. Running 'cat /sys/class/drm/card0/error showed an output of "no error
state collected".
System Info:
Ubuntu 14.04.2 LTS
Dell Optiplex 780
Kernel 4.0.0-997-generic
I'm also attaching the GDB output of 'backtrace full' for Xorg and Gnome-Shell</pre>
</div>
</p>
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