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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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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 --- - s3tc not working with radeonsi driver"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63979">63979</a>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
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<th>Summary</th>
<td>s3tc not working with radeonsi driver
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Reporter</th>
<td>kallisti5@unixzen.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
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<th>Version</th>
<td>git
</td>
</tr>
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<th>Component</th>
<td>Drivers/Gallium/radeonsi
</td>
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<th>Product</th>
<td>Mesa
</td>
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<pre>s3tc doesn't work when using the radeonsi driver.
Example:
kallisti5@eris ~ :) $ find /usr/lib -name "radeonsi*"
/usr/lib/xorg/modules/dri/radeonsi_dri.so
kallisti5@eris ~ :) $ glxinfo | grep renderer
OpenGL renderer string: Gallium 0.4 on AMD TAHITI
No EXT_texture_compress (aka s3tc)
kallisti5@eris ~ :) $ glxinfo | grep EXT_texture_compress
Move radeonsi driver somewhere else forcing fallback to swpipe:
kallisti5@eris ~ :( $ sudo mv /usr/lib/xorg/modules/dri/radeonsi_dri.so /tmp/
Now using llvmpipe:
kallisti5@eris ~ :) $ glxinfo | grep renderer
libGL error: failed to load driver: radeonsi
libGL error: Try again with LIBGL_DEBUG=verbose for more details.
OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.3, 128 bits)
s3tc now working:
kallisti5@eris ~ :) $ glxinfo | grep EXT_texture_compress
libGL error: failed to load driver: radeonsi
libGL error: Try again with LIBGL_DEBUG=verbose for more details.
GL_EXT_texture_array, GL_EXT_texture_compression_dxt1,
GL_EXT_texture_compression_latc, GL_EXT_texture_compression_rgtc,
GL_EXT_texture_compression_s3tc, GL_EXT_texture_cube_map,
kallisti5@eris ~ :) $</pre>
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