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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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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 mobile GT3e] GpuTest v0.5 triangle fluctuate by ~45% enabling gnome-session"
href="https://bugs.freedesktop.org/show_bug.cgi?id=72019">72019</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>idr@freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[HSW mobile GT3e] GpuTest v0.5 triangle fluctuate by ~45% enabling gnome-session
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-3d-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>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jianx.zhou@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>Drivers/DRI/i965
</td>
</tr>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr></table>
<p>
<div>
<pre>System Environment:
----------------------------------------------
Platform: HSW mobile GT3e
Libdrm:(master)libdrm-2.4.49
Mesa:(master)90d185544c897ca0b4c3c677fed4290330bb0706
Xf86_video_intel:(master)2.99.906-28-g12e974c7bc8c85
Cairo:(master)31eff5c6eb57ad379689748fd8c60a5ffe0ba481
Libva:(staging)9aa8530ce272dc844428b7273afe7d4f0aaf391d
Libva_intel_driver: (staging)34627c96f331f7a344270c3d51b634f5f166073e
Kernel:(drm-intel-nightly) 164a4cb4c1431a0689f85507868356fae24da638
Bug detailed description:
-----------------------------------------------
GpuTest v0.5 triangle fluctuates by ~45% on HSW mobile GT3e enabling
gnome-session. It works OK with Raw X on HSW mobile. The problem doesn’t exist
on IVB/HSW-D enabling gnome-session.
It’s not a regression. The problem has existed since running GpuTest v0.5
triangle on HSW mobile GT3e.
Performance
--------------------------------------------------------------------
Test on HSW mobile GT3e enabling gnome-session
Raw X(xinit) gnome-session
GpuTest v0.5 triangle 1330,1286,1343 1349,921,750
Reproduce steps:
---------------------------------------------
1, xinit&
2. gnome-session
3 ./GpuTest /test=triangle /width=1920 /height=1080 /fullscreen /benchmark
/no_scorebox</pre>
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