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<body><span class="vcard"><a class="email" href="mailto:ming.yao@intel.com" title="yaoming <ming.yao@intel.com>"> <span class="fn">yaoming</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [bdw false-bisect] Xf86 causes glxgears issue"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81898">bug 81898</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEEDINFO
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<td>NEW
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [bdw false-bisect] Xf86 causes glxgears issue"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81898#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [bdw false-bisect] Xf86 causes glxgears issue"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81898">bug 81898</a>
from <span class="vcard"><a class="email" href="mailto:ming.yao@intel.com" title="yaoming <ming.yao@intel.com>"> <span class="fn">yaoming</span></a>
</span></b>
<pre>[BDW Bisected] Glxgears issue
----------------------------------------------
==System Environment==
--------------------------
Platform: BDW
Libdrm:(master)libdrm-2.4.54-9-g8fc62ca8ac010659023bb63c4759eb683de4f9af
Mesa:(master)84e0a5c406f2a8f060352eaa4b5c138e3f1a5a86
Xserver:(master)xorg-server-1.15.99.902-97-gdb2e708f31a162c6c66643d3559dd5f3e21ee06b
Xf86_video_intel:(master)2.99.911-225-gffbe0aa1851c35cc2403633ca493e9fc6a471fd4
Cairo:(master)ead5c7909f3db1d0d81121fc2775c458871891b2
Libva:(staging)35e70cb9b9c77dfb99fb370e319ed501f0c31b17
Libva_intel_driver:(staging)fbbe401aa28a0b3859d587ef08f0df15a2f7c8f2
Kernel:(drm-intel-nightly) 164a4cb4c1431a0689f85507868356fae24da638
Bug detailed description:
----------------------------------------------
The problem exists both on gnome-session and Raw X.
And it show different issues with SNA on and off: glxgears show black when SNA
on and very jitter when SNA off.
It’s Xf86 regression, bisecting show that the first bad commit is:
commit 1618d6cfa63e31ebaedadf575dcbdf5b07451bde
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
AuthorDate: Fri May 30 12:14:40 2014 +0100
Commit: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
CommitDate: Mon Jun 2 08:32:10 2014 +0100
sna/gen8: Set GT level
We use the GT level to decide how favourable it is to use the GPU in
various circumstances, now set it.
Signed-off-by: Chris Wilson <a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>
Reproduce steps:
---------------------------------------------
1. xinit &
2. gnome-session &
3. glxgears &</pre>
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