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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 - 'Unknown' connector status when resuming from suspend"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91277">91277</a>
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<th>Summary</th>
<td>'Unknown' connector status when resuming from suspend
</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>Other
</td>
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<th>OS</th>
<td>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
</td>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>tiagomatos@gmail.com
</td>
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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>
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<p>
<div>
<pre>Using kernel 4.1 on a thinkpad X240, I get the following after resuming from
suspend:
$ cat /sys/class/drm/card0/*/status
unknown
unknown
unknown
unknown
unknown
If at this point I just run the xrandr CLI tool, then I get correct values
again:
$ cat /sys/class/drm/card0/*/status
disconnected
disconnected
connected
disconnected
disconnected
I also found out that with kernel 4.0 I don't get the 'unknown' statuses on the
/sys connector files after resuming but nonetheless the X server doesn't seem
to get notified about newly connected ports (while suspended) until a forced
refresh with 'xrandr' is done.</pre>
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</p>
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