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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 --- - [IVB/HSW/BYT-M Bisected]Show Black screen during running OglMultithread"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84082">84082</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>[IVB/HSW/BYT-M Bisected]Show Black screen during running OglMultithread
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>lilix.cheng@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</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>
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<div>
<pre>Environment:
-----------------------------------
Platform:IVB/HSW
Libdrm:(master)libdrm-2.4.56-26-gae8edc7544e566084f7b958eb93c9109b471ca30
Mesa:(master)71d4fc88d6b97d6b9a8f1a324d2dcd0c56b79f3d
Xserver:(master)xorg-server-1.16.0-317-geaee6572beefca240c42791f9a3a6e547bedd410
Xf86_video_intel:(master)2.99.916-47-g2a4855a633f42d90e11f5c51342c514c2dc24307
Cairo:(master)e0c0a673ee757615bd3d22f46767535e9f53d6f5
Libva:(master)e0d25ece01e7aba819c910e98c4fb4706cdab055
Libva_intel_driver:(master)bc2e06ef0f89b264fe968fbff4f06e425385c3d8
Kernel:(drm-intel-nightly)3e5e5913a80f593aa8f67784220eac2658034c6c
Bug detailed description:
---------------------------------------------
Show Black screen during running OglMultithread on IVB/HSW,this issue doesn't
exist on BDW/BYT-M.
this problem exist both on gnome-session and Raw X.
It's kernel regression(drm-intel-next-queued),show bisect result first bad
commit is:
commit 1ed26b0b84dab119de93723ad646229db748842d
Author: Michel Thierry <<a href="mailto:michel.thierry@intel.com">michel.thierry@intel.com</a>>
AuthorDate: Fri Sep 5 14:13:16 2014 +0100
Commit: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
CommitDate: Mon Sep 8 09:42:19 2014 +0200
drm/i915: Enable full PPGTT on gen7
BTW,this issue also exist on drm-intel-nightly branch.
Reproduce steps:
---------------------------------------------
1. xinit&
2. ./synmark2 OglMultithread</pre>
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