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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Incorrect rendering with Intel driver, correct with llvm softpipe"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99339">99339</a>
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<th>Summary</th>
<td>Incorrect rendering with Intel driver, correct with llvm softpipe
</td>
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>13.0
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>Drivers/DRI/i965
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<th>Assignee</th>
<td>intel-3d-bugs@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>ccr@tnsp.org
</td>
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<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
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<div>
<pre>Some wonky rendering occurs with Mesa 13.0.2 (not bisected, so unsure where
this issue has started) when using Intel HW OpenGL. The problem does not occur
with full software rendering (llvm softpipe) e.g. running with
LIBGL_ALWAYS_SOFTWARE=1
As I am not sure what the exact issue is (might be incorrect clipping or vector
calculation etc.) the best thing is to demonstrate, two screenshots and a OGV
format video available at: <a href="http://tnsp.org/~ccr/intel-gfx/blender/">http://tnsp.org/~ccr/intel-gfx/blender/</a>
In the video pay attention to the "floor grid" lines, which go about weirdly.
The other minor glitches are artifacts of the screen capture and not actually
visible.
I'll try latest GIT and bisecting during next weekend as I'll have more time
then.
-- Linux distribution: Debian GNU/Linux testing (stretch)
-- System architecture: amd64
Foreign architectures: i386
-- Machine: Asus H97M-PLUS, Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz
-- Kernel version: 4.8.15-grsec
-- Chipset: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated
Graphics Controller (rev 06)
-- Display connector(s): HDMI (2560x1440)
-- Window manager: WindowMaker 0.95.7-6+b1
-- xf86-video-intel: GIT
-- X server: Xorg 2:1.19.0-3
-- Mesa: 13.0.2-3
-- libpixman: 0.34.0-1
-- libdrm version: 2.4.74-1</pre>
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