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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [HSW mobile] eDP fails to be re-enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=66294">66294</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[HSW mobile] eDP fails to be re-enabled
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
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<th>Reporter</th>
<td>yangweix.shui@intel.com
</td>
</tr>
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<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=81600" name="attach_81600" title="dmesg: eDP failed to be re enabled">attachment 81600</a> <a href="attachment.cgi?id=81600&action=edit" title="dmesg: eDP failed to be re enabled">[details]</a></span>
dmesg: eDP failed to be re enabled
Environment:
----------------
Kernel: (drm-intel-next-queued)6dd8224ec64c809dad5ceceac299918f5d9c7c31
MSI Haswell Notebook MSI MS-16GC Notebook 15.6;
Host bridge ID=0x0c04 (rev 06);
VGA ID=0x0416 (rev06);
BIOS: E16GCIMS.509 (04/24/2013)
Description:
----------------
Unable to wake up eDP monitor using display switching option. While trying to
wake up the monitor monitor stays in OFF state. HSW desktop's all pipe work
well, ULT eDP + micro HDMI works well, our new ULT platform only support these
two pipes. Another ULT which has more pipe is used by others, I will test it
ASAP when it's free.
Reproduce steps:
----------------
1.Prepare DUT under above configuration.
2.Connect another monitor(VGA or HDMI).
3.Boot DUT and enter the following command:
#xrandr --output eDP1 -- off
#xrandr --autoreboot
Current result:
----------------
#xrandr --output eDP1 -- off
eDP turns OFF
#xrandr --auto
eDP remains in the OFF state
Expected result:
----------------
eDP must awake when entering the command # xrandr --auto</pre>
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