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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - GLBenchmark 2.7 TRex renders with artifacts on Gen8 with SNA"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88521">88521</a>
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<th>Summary</th>
<td>GLBenchmark 2.7 TRex renders with artifacts on Gen8 with SNA
</td>
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<th>Product</th>
<td>xorg
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
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<th>OS</th>
<td>Linux (All)
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>Driver/intel
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<th>Assignee</th>
<td>chris@chris-wilson.co.uk
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<th>Reporter</th>
<td>mark.a.janes@intel.com
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<p>
<div>
<pre>This bug affects Gen8 platforms Braswell and Broadwell. I've been testing on a
Braswell C0 part.
I'm running with the oibaf ppa on ubuntu 14.10. The SNA version from xorg log
is:
xserver-xorg-video-intel 2:2.99.917+git1501151931.bb279d~gd~u (Oibaf
<<a href="mailto:fmrummey@gmail.com">fmrummey@gmail.com</a>>)
If you run the GLBenchmark Onscreen TRex benchmark, you can see occasional
artifacts where leaves draw lines forward into the screen. It seems like an
off-by-one error, where one of the vertices is squashed when it is rendered.
Changing to UXA eliminates the behavior.</pre>
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