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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 - Failed to toggle display to mirror mode"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111310">111310</a>
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<th>Summary</th>
<td>Failed to toggle display to mirror mode
</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
</td>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>acelan@gmail.com
</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>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=144961" name="attach_144961" title="journal -b -k, the HDMI monitor fails to display after switched to mirror mode">attachment 144961</a> <a href="attachment.cgi?id=144961&action=edit" title="journal -b -k, the HDMI monitor fails to display after switched to mirror mode">[details]</a></span>
journal -b -k, the HDMI monitor fails to display after switched to mirror mode
OS: Ubuntu 18.04
Kernel: 5.3-rc3
XPS 13 7390 (TBT port) -> Dell WD19TB Thunderbolt Dock (Type C DP port) -> Type
C to HDMI(04b4:5210) -> HDMI Monitor
Toggle the display to mirror mode the HDMI monitor always get blank screen.
But after added drm.debug=0xe, it leads to this issue hard to be reproduced,
I've tried around 10 times to get one failure.</pre>
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