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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 - Onboard & HDMI-connected displays flickering after resuming from suspend to memory"
href="https://bugs.freedesktop.org/show_bug.cgi?id=85157">85157</a>
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<th>Summary</th>
<td>Onboard & HDMI-connected displays flickering after resuming from suspend to memory
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr>
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<th>Version</th>
<td>XOrg CVS
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<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
</td>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>lharrington@gmail.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
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<pre>Created <span class=""><a href="attachment.cgi?id=108005" name="attach_108005" title="contents of /sys/class/drm/card0/error after bug occurred">attachment 108005</a> <a href="attachment.cgi?id=108005&action=edit" title="contents of /sys/class/drm/card0/error after bug occurred">[details]</a></span>
contents of /sys/class/drm/card0/error after bug occurred
Whenever I open my laptop, resuming from suspend, if my HDMI connected external
display is powered on, both displays flicker until I restart X.
I am using the current video drivers available from Intel from their PPA:
/etc/apt/sources.list.d/intellinuxgraphics.list:
deb <a href="https://download.01.org/gfx/ubuntu/14.04/main">https://download.01.org/gfx/ubuntu/14.04/main</a> trusty main #Intel
Graphics drivers
lsb info:
Distributor ID: Ubuntu
Description: Ubuntu 14.04.1 LTS
Release: 14.04
Codename: trusty
relevant dmesg showing before & after:
[ 2267.549136] Watchdog[4645]: segfault at 0 ip 00007f143b948d98 sp
00007f142bf21710 error 6 in libcontent.so[7f143b113000+1170000]
[ 2278.795343] Watchdog[14362]: segfault at 0 ip 00007f9336bffd98 sp
00007f93271d8710 error 6 in libcontent.so[7f93363ca000+1170000]
[ 4038.327596] [drm] stuck on render ring
[ 4038.328237] [drm] GPU HANG: ecode 0:0xf5f7fffe, in ShCrOpenGL [5127],
reason: Ring hung, action: reset
[ 4038.328239] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 4038.328240] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 4038.328241] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 4038.328242] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 4038.328243] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 4040.329884] [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off
[ 4788.457392] NET: Unregistered protocol family 15
[ 4788.524731] NET: Registered protocol family 15</pre>
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