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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 bisected]screen black when start gnome-session enabling SNA"
href="https://bugs.freedesktop.org/show_bug.cgi?id=66491">66491</a>
</td>
</tr>
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<th>Assignee</th>
<td>chris@chris-wilson.co.uk
</td>
</tr>
<tr>
<th>Summary</th>
<td>[HSW bisected]screen black when start gnome-session enabling SNA
</td>
</tr>
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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>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Reporter</th>
<td>pengcheng.jiang@intel.com
</td>
</tr>
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<th>Hardware</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Component</th>
<td>Driver/intel
</td>
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<th>Product</th>
<td>xorg
</td>
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<p>
<div>
<pre>system Environment:
--------------------------
platform: HSW
Mesa:(master)4c859901cebf04b37d8d458d58fc5ac0e24b4471
Xf86_video_intel:(master)2.21.11-12-g24a7bec7faa7dcc4393ef7f66939ae0fb8acdf36
Kernel: (drm-intel-nightly) 4650ba773f66c31ee17f87a8ffd715465a2cab05
hardware:
--------------
Shark Bay Desktop Beta SDP (Flathead Creek): C3 stepping (id=0x0412, rev 06),
Lynx Point 02 (B0 stepping) and Host bridge id=0x0c00 (rev 06) 4Cores/4Thread,
CPU i5-4570 3.2GHz, GT2 1150MHz; BIOS version: V120; KSC version: V1.10;
Barcode: BB001794;
Bug detailed description:
-------------------------
Screen black when start gnome-session, enabling SNA on HSW. It doesn't exist
without SNA. Pls see Xorg.0.log and dmesg attached.
It's Xf86_video_intel regression, bisected show that:
The first bad commit could be any of:
8a6a21bff86100144ba7960fc32a299ac54ada83
c5651254c3c152daf1ed79073779c1bed6ed0a9b
Reproduce steps:
--------------------
1. xinit&
2. gnome-session</pre>
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