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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 - [BSW] DP screen is black when running testdisplay on some modes"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88963">88963</a>
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<th>Summary</th>
<td>[BSW] DP screen is black when running testdisplay on some modes
</td>
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<th>Product</th>
<td>DRI
</td>
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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
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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>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
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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>
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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=113149" name="attach_113149" title="dmesg log">attachment 113149</a> <a href="attachment.cgi?id=113149&action=edit" title="dmesg log">[details]</a></span>
dmesg log
==System Environment==
--------------------------
BIOS: V55 with 'dynamic memory self refresh' disabled
DP monitor: ASUS PA238Q
Regression: No. I don't find a working version (tried on -nightly 2014-12-06
commit bfdd01aa1825aa0068f9236b21362b550f6d630f and this issue still exists)
Non-working platforms: BSW
==kernel==
--------------------------
-testing: 2015_01_30 commit 4d3645e40c7039f60b6db0ce9c2251ac34faef81 (fails)
-fixes: 2015_02_04 commit 6b96d705f3cf435b0b8835b12c9742513c77fed6 (fails)
==Bug detailed description==
-----------------------------
Running "testdisplay -a", DP screen is black on following modes
[2] 1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40 74250
[3] 1920x1080i 60 1920 2008 2052 2200 1080 1084 1094 1125 0x15 0x40 74176
[5] 1920x1080i 50 1920 2448 2492 2640 1080 1084 1094 1125 0x15 0x40 74250
==Reproduce steps==
----------------------------
1. Run "testdisplay -a"
2. Check output of DP
3. Same issue if running "testdisplay -d/-t"</pre>
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