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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BYT] :After hotplug all display ,screen can't go back"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91709">91709</a>
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<th>Summary</th>
<td>[BYT] :After hotplug all display ,screen can't go back
</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>All
</td>
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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>high
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<th>Component</th>
<td>DRM/Intel
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>yi.guo@intel.com
</td>
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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>
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<p>
<div>
<pre>System Environment:
BIOS: BBAYCRB1.X64.0090.R10.1404072340
Kernel:4.2.0-rc7_drm-intel-nightly
Tree: git://anongit.freedesktop.org/drm-intel
Branch:drm-intel-nightly
Commit: bf0f6061f310962d6127a1a343e9981f8d5a5c0c
Bug detailed description
when unplug HDMI an DP, eld information is correct; then replug all display,
all screen are black. but only hotplug one display, screen can go back.
***And I have catch dmesg in above 3 circumstance, find they all blank.
Reproduce Steps
1.unplug all display
2.replug all display
Expected Result
all screen can go back
Actual Result
all screen are black</pre>
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