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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 - [CNL] HDMI video doesn't come back after S3 state , only with HDMI connected"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104228">104228</a>
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<th>Summary</th>
<td>[CNL] HDMI video doesn't come back after S3 state , only with HDMI connected
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>DRI git
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>major
</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>elio.martinez.monroy@intel.com
</td>
</tr>
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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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<pre>Created <span class=""><a href="attachment.cgi?id=136118" name="attach_136118" title="dmesg log">attachment 136118</a> <a href="attachment.cgi?id=136118&action=edit" title="dmesg log">[details]</a></span>
dmesg log
System Environment
=======
Ubuntu 17.04
4.15.0-rc2-drm-intel-qa-ww49-commit-bdf9b36+
Default graphic configuration from Ubuntu 17.04 without any kind of firmware
(No DMC GuC or HuC)
Regression?
=======
No
Bug detailed description
=======
After booting up without any background process, the system is not able to
recover image on Acer HDMI monitor after a S3 instruction "#echo mem >
/sys/power/state"
Reproduce Steps
==============
login in to your linux account
open terminal and execute as sudo "echo mem > /sys/power/state"
Expected Result
=============
The system should recover getting back image on HDMI monitor
Actual Result
===========
No screen available but system is up through ssh
Analysis & Root Cause
===================
This problem is not present with eDP</pre>
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