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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 --- - [SNB IVB HSW eDP bisected]I-G-T/testdisplay -f causes eDP black"
href="https://bugs.freedesktop.org/show_bug.cgi?id=68165">68165</a>
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<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[SNB IVB HSW eDP bisected]I-G-T/testdisplay -f causes eDP black
</td>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
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<th>OS</th>
<td>All
</td>
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<th>Reporter</th>
<td>cancan.feng@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>
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<th>Component</th>
<td>DRM/Intel
</td>
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<th>Product</th>
<td>DRI
</td>
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<p>
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<pre>Description:
--------------------
I-G-T/testdisplay -f doesn't work on eDP pipe, eDP screen will turn to black
after do this operation. This issue happens on SNB, IVB and HSW mobile. I
bisected on a SNB mobile, here is the bisect result:
commit fae5cbff3e3e4097de2e76178d462b90626c2bdb
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
AuthorDate: Sun Jul 21 21:37:09 2013 +0200
Commit: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
CommitDate: Sat Jul 27 00:02:38 2013 +0200
drm/i915: clean up crtc timings computation
Reproduce step:
----------------------
1. testdisplay -f 38.25,800,832,912,1024,600,603,607,624</pre>
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