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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [Regression HSW ULT]igt/testdisplay -d 16 cause balckscreen with HDMI"
href="https://bugs.freedesktop.org/show_bug.cgi?id=69404">69404</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[Regression HSW ULT]igt/testdisplay -d 16 cause balckscreen with HDMI
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>pengcheng.jiang@intel.com
</td>
</tr>
<tr>
<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>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Environment:
--------------------------
Kernel: (master)6e4664525b1db28f8c4e1130957f70a94c19213e
Author: Linus Torvalds <<a href="mailto:torvalds@linux-foundation.org">torvalds@linux-foundation.org</a>>
Date: Mon Sep 2 13:46:10 2013 -0700
Linux 3.11
Bug Details:
---------------------------
Using HDMI output port,Running "./testdisplay -d 16" shows black screen after
runing about 12 modes, sometimes may just show black screen at the
beginning.The modes thatUsing command such as "./testdisplay -d 16 -o 22,12" to
test one mode also shows blackscreen.
And I test with the image of 2013Q2RC2, it shows well.The commit info is:
Kernel: (linux-3.9.y)5dd2e9869de2d28fc7e5c274ff9c12af4361ba86
Some additional commit info:
Author: Greg Kroah-Hartman <<a href="mailto:gregkh@linuxfoundation.org">gregkh@linuxfoundation.org</a>>
Date: Fri Jun 7 12:54:00 2013 -0700
Linux 3.9.5
What's more I test with the latest nightly image of 20130916,it also has the
problem. If necessary I can bisect.
CRTS(3):[13] 1152x864 75 1152 1216 1344 1600 864 865 868 900 0x5 0x40 108000
CRTS(3):[14] 1280x720 60 1280 1390 1430 1650 720 725 730 750 0x5 0x40 74250
CRTS(3):[15] 1280x720 60 1280 1390 1430 1650 720 725 730 750 0x5 0x40 74176
CRTS(3):[16] 1280x720 50 1280 1720 1760 1980 720 725 730 750 0x5 0x40 74250
CRTS(3):[17] 1440x576 50 1440 1464 1592 1728 576 581 586 625 0xa 0x40 54000
CRTS(3):[18] 1440x576i 50 1440 1464 1590 1728 576 580 586 625 0x101a 0x40
27000
CRTS(3):[19] 1024x768 75 1024 1040 1136 1312 768 769 772 800 0x5 0x40 78800
CRTS(3):[20] 1024x768 70 1024 1048 1184 1328 768 771 777 806 0xa 0x40 75000
CRTS(3):[21] 1024x768 60 1024 1048 1184 1344 768 771 777 806 0xa 0x40 65000
CRTS(3):[22] 1440x480 60 1440 1472 1596 1716 480 489 495 525 0xa 0x40 54054
CRTS(3):[23] 1440x480 60 1440 1472 1596 1716 480 489 495 525 0xa 0x40 54000
CRTS(3):[24] 1440x480i 60 1440 1478 1602 1716 480 488 494 525 0x101a 0x40
27027
CRTS(3):[25] 1440x480i 60 1440 1478 1602 1716 480 488 494 525 0x101a 0x40
27000
CRTS(3):[26] 832x624 75 832 864 928 1152 624 625 628 667 0xa 0x40 57284
CRTS(3):[27] 800x600 75 800 816 896 1056 600 601 604 625 0x5 0x40 49500
CRTS(3):[28] 800x600 72 800 856 976 1040 600 637 643 666 0x5 0x40 50000
CRTS(3):[29] 800x600 60 800 840 968 1056 600 601 605 628 0x5 0x40 40000
CRTS(3):[30] 800x600 56 800 824 896 1024 600 601 603 625 0x5 0x40 36000
CRTS(3):[31] 720x576 50 720 732 796 864 576 581 586 625 0xa 0x40 27000
CRTS(3):[32] 720x480 60 720 736 798 858 480 489 495 525 0xa 0x40 27027
CRTS(3):[33] 1440x240 60 1440 1478 1602 1716 240 244 247 262 0x100a 0x40 27027
CRTS(3):[34] 720x480 60 720 736 798 858 480 489 495 525 0xa 0x40 27000
CRTS(3):[35] 1440x240 60 1440 1478 1602 1716 240 244 247 262 0x100a 0x40 27000
CRTS(3):[36] 640x480 75 640 656 720 840 480 481 484 500 0xa 0x40 31500
CRTS(3):[37] 640x480 73 640 664 704 832 480 489 491 520 0xa 0x40 31500
CRTS(3):[38] 640x480 67 640 704 768 864 480 483 486 525 0xa 0x40 30240
CRTS(3):[39] 640x480 60 640 656 752 800 480 490 492 525 0xa 0x40 25200
CRTS(3):[40] 640x480 60 640 656 752 800 480 490 492 525 0xa 0x40 25175
CRTS(3):[41] 720x400 70 720 738 846 900 400 412 414 449 0x6 0x40 28320
Reproduce Step:
-----------------------------
./testdisplay -d 16</pre>
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