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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_OpenGL_3.0_clearbuffer-mixed-format fails"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77856">77856</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>idr@freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[BDW]Piglit spec_OpenGL_3.0_clearbuffer-mixed-format 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>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr></table>
<p>
<div>
<pre>System Environment:
--------------------------
Platform: Broadwell
Libdrm:
(master)libdrm-2.4.53-6-gd4083dc762a2974c35ecd16be995272bbb6d57b4
Mesa: (master)34a68345e228b7cbc1bc6909704a89c08bf5368e
Xserver:
(master)xorg-server-1.15.99.902-47-ge924034269532979f1e88947ee9c33d30461edae
Xf86_video_intel:(master)2.99.911-94-gbb5b21e34f6cbe44a249e566471754b45c500e60
Libva: (staging)8577efbd3b1d4e8f113f78cf13d2182aa681b738
Libva_intel_driver:(staging)42258e128f19b93aa102672d5f61eb73d9f9808f
Kernel: (drm-intel-nightly)1e771b84e47085ef9b6efea1321e7cb5a8b2c065
Bug detailed description:
-----------------------------
It fails on Broadwell with Mesa master branch, but works well on Haswell.
output:
libGL: screen 0 does not appear to be DRI3 capable
libGL: pci id for fd 4: 8086:1616, driver i965
libGL: OpenDriver: trying /opt/X11R7/lib/dri/i965_dri.so
Probe color at (0,0)
Expected: 0.500000 0.300000 0.700000 0.000000
Observed: 0.000000 0.000000 0.000000 0.000000
from color attachment 0.
Probe color at (0,0)
Expected: 0.800000 0.000000 0.200000 1.000000
Observed: 0.000000 0.000000 0.000000 0.000000
from color <span class=""><a href="attachment.cgi?id=1" name="attach_1" title="various speedups">attachment 1</a> <a href="attachment.cgi?id=1&action=edit" title="various speedups">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=77856&attachment=1'>[review]</a>.
Probe color at (0,0)
Expected: 1.200000 -2.900000 0.200000 5.800000
Observed: -nan -nan -nan 0.000000
from color <span class=""><a href="attachment.cgi?id=2" name="attach_2" title="fail on submake failure patch">attachment 2</a> <a href="attachment.cgi?id=2&action=edit" title="fail on submake failure patch">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=77856&attachment=2'>[review]</a>.
Probe color at (0,0)
Expected: 0.500000 2.500000 -5.200000 1.000000
Observed: -nan -nan -nan 0.000000
from color <span class=""><a href="attachment.cgi?id=3" name="attach_3" title="fontconfig-opt-cache.patch">attachment 3</a> <a href="attachment.cgi?id=3&action=edit" title="fontconfig-opt-cache.patch">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=77856&attachment=3'>[review]</a>.
Probe color at (0,0)
Expected: 10 90 100 150
Observed: 255 255 255 50
from color <span class=""><a href="attachment.cgi?id=4" name="attach_4" title="fontconfig-opt-constants.patch">attachment 4</a> <a href="attachment.cgi?id=4&action=edit" title="fontconfig-opt-constants.patch">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=77856&attachment=4'>[review]</a>.
Probe color at (0,0)
Expected: 15 25 20 15
Observed: 4294967246 4294967246 4294967246 50
from color <span class=""><a href="attachment.cgi?id=5" name="attach_5" title="fontconfig-opt-hashed-lang.patch">attachment 5</a> <a href="attachment.cgi?id=5&action=edit" title="fontconfig-opt-hashed-lang.patch">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=77856&attachment=5'>[review]</a>.
Probe color at (0,0)
Expected: 100 190 200 -15
Observed: -50 -50 -50 50
from color <span class=""><a href="attachment.cgi?id=6" name="attach_6" title="fontconfig-opt-name-parse.patch">attachment 6</a> <a href="attachment.cgi?id=6&action=edit" title="fontconfig-opt-name-parse.patch">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=77856&attachment=6'>[review]</a>.
PIGLIT: {'result': 'fail' }
Reproduce steps:
----------------------------
1. xinit
2. ./bin/clearbuffer-mixed-format -fbo -auto</pre>
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