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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 - i915 drm module sometimes loops between HDMI connected and disconnected"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97958">97958</a>
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<th>Summary</th>
<td>i915 drm module sometimes loops between HDMI connected and disconnected
</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)
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<th>OS</th>
<td>Linux (All)
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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
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<th>Reporter</th>
<td>leo@strike.wu.ac.at
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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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=126824" name="attach_126824" title="dmesg output of loop (drm.debug=255)">attachment 126824</a> <a href="attachment.cgi?id=126824&action=edit" title="dmesg output of loop (drm.debug=255)">[details]</a></span>
dmesg output of loop (drm.debug=255)
Sometimes, after it had worked fine for hours, my Intel Skylake graphics starts
to loop between HDMI connect and disconnect events. (Of course the TV actually
stays connected, although switched off.)
The corresponding drm.debug=255 messages are attached as dmesg-drm-debug.log.
This results in udev events, which cause the X-Server to log the output shown
in Xorg.0.log
Interestingly, the loop can be interrupted by calling
env DISPLAY=:0 xrandr --output HDMI1
After that command, the events stop again and the HDMI output correctly shows
as connected.
I am using kernel 4.7.3-200.fc24.x86_64 (Fedora 24).</pre>
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