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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 --- - [BDW]Piglit spec_ARB_sample_shading_builtin-gl-sample-position_4 fails"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77222">77222</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>idr@freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[BDW]Piglit spec_ARB_sample_shading_builtin-gl-sample-position_4 fails
</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>huax.lu@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>
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<th>Product</th>
<td>Mesa
</td>
</tr></table>
<p>
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<pre>System Environment:
--------------------------
Platform: Broadwell
Libdrm:
(master)libdrm-2.4.52-10-g1cb5fc706cf5913d9dee33c939f65a23ecea17a5
Mesa: (master)159cec9dec2320d821d388c0df8140c7705b6e0b
Xserver:
(master)xorg-server-1.15.99.901-204-g901fbfbbbd71c0d82080957f8ba09eebbc786f2b
Xf86_video_intel:(master)2.99.911-44-g3310ee89c1f1a663de5f5b12b8125809a213996f
Cairo: (master)bb17403622e9ea474017e0039af8ee48b2b285db
Libva: (staging)960352aaf1e11891a533ce2c98b16edde24d6851
Libva_intel_driver:(staging)150f67c67bd92cd201b75a92388fe3a63b00cd8a
Kernel: (drm-intel-nightly) 7cd8b823493acc320c7db9112de9d4e21c6dbd11
Bug detailed description:
-----------------------------
It fails on Broadwell with Mesa master branch, but work well on Haswell.
spec_ARB_sample_shading_builtin-gl-sample-position_6 and
spec_ARB_sample_shading_builtin-gl-sample-position_8 also fail.
output:
sample[0]_pos = {0.375000, 0.125000}
sample[1]_pos = {0.875000, 0.375000}
sample[2]_pos = {0.125000, 0.625000}
sample[3]_pos = {0.625000, 0.875000}
Probe color at (0,0)
Expected: 0.000000 1.000000 0.000000 1.000000
Observed: 0.501961 0.501961 0.000000 1.000000
PIGLIT: {'result': 'fail' }
Reproduce steps:
----------------------------
1. xinit
2. ./bin/arb_sample_shading-builtin-gl-sample-position 4 -auto</pre>
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