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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 - Thinkpad / Intel drm: problems after docking laptop"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100619">100619</a>
</td>
</tr>
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<th>Summary</th>
<td>Thinkpad / Intel drm: problems after docking laptop
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr>
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<th>Version</th>
<td>DRI git
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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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
</td>
</tr>
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<th>Reporter</th>
<td>bugs.freedesktop.org@r123.de
</td>
</tr>
<tr>
<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>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=130757" name="attach_130757" title="dmesg output">attachment 130757</a> <a href="attachment.cgi?id=130757&action=edit" title="dmesg output">[details]</a></span>
dmesg output
This happened on a ThinkPad T460p with Intel HD 530and the following software
versions:
* stock Kernel 4.10.8
* Mesa 13.0.6
* x11-intel drivers from git from 20170313
* libdrm 2.4.75
* xorg-server 1.19.2
I had problems after docking the laptop in to the docking station, which was
attached to two screens (one through DP, one through HDMI): the external
screens stayed black and the laptop was frozen. After undocking it became
responsive again. Problem was reproducible and appeared also after hibernating
and waking up the laptop.
Please find dmesg output attached, which contains a lot of drm related error
messages.
$ cat /sys/class/drm/card0/error
no error state collected
No relevant messages in Xorg.log</pre>
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