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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BSW] HDMI screen becomes black after resuming from S3/S4"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88382">88382</a>
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<th>Summary</th>
<td>[BSW] HDMI screen becomes black after resuming from S3/S4
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr>
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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>
</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
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>jeff.zheng@intel.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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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=112189" name="attach_112189" title="dmesg after resume from S3">attachment 112189</a> <a href="attachment.cgi?id=112189&action=edit" title="dmesg after resume from S3">[details]</a></span>
dmesg after resume from S3
==System Environment==
--------------------------
Regression: No. I don't find a working version.
Non-working platforms: BSW
Working platforms:
==kernel==
--------------------------
-nightly: /823e7150631cb1059edc9c57fc4c6f8454e1700e(fails)
==Bug detailed description==
-----------------------------
Boot BSW with HDMI connected, both eDP and HDMI screen show text. But after
suspend and resume, only eDP shows text, HDMI screen is blank
"testdisplay -a" shows normal, and if I control-C to abort, HDMI screen shows
text again.
==Reproduce steps==
----------------------------
1. Connect HDMI display to BSW and boot BSW
2. echo mem > /sys/power/state
3. Resume and check HDMI monitor</pre>
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