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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
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</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - compis/kwin crashes on nouveau due to msaa"
href="https://bugs.freedesktop.org/show_bug.cgi?id=58925">58925</a>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
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</tr>
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<th>Summary</th>
<td>compis/kwin crashes on nouveau due to msaa
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Reporter</th>
<td>bobahu4@gmail.com
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</tr>
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<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Version</th>
<td>XOrg CVS
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</tr>
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<th>Component</th>
<td>General
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr></table>
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<pre>Here compiz/kwin crashes when tries to run with weird assertion on msaa
textures.
Found that msaa can be swithced off with enviroment variable
<a href="http://cgit.freedesktop.org/mesa/mesa/commit/?id=1d0bf69f831e138a05a282e59746f20141046fd6">http://cgit.freedesktop.org/mesa/mesa/commit/?id=1d0bf69f831e138a05a282e59746f20141046fd6</a>
but GALLIUM_MSAA = 0 doesnt help at all.
so I edited dri_fill_st_visual in dri_screen.c to disable msaa at all
if (mode->sampleBuffers) {
- stvis->samples = mode->samples;
+ stvis->samples = 1;
}
Now compiz/kwin work fine.
kernel 3.8-git from ubuntu daily kernel-ppa, ubuntu 12.10, nvidia gtx670</pre>
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