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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - VDPAU broken in radeonsi by commit 0692ae34e939845e5185d3bdd33ddfe4afcdb995"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111806">111806</a>
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<th>Summary</th>
<td>VDPAU broken in radeonsi by commit 0692ae34e939845e5185d3bdd33ddfe4afcdb995
</td>
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<th>Product</th>
<td>Mesa
</td>
</tr>
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<th>Version</th>
<td>git
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>not set
</td>
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<th>Priority</th>
<td>not set
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<th>Component</th>
<td>Drivers/Gallium/radeonsi
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>makosoft@googlemail.com
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<th>QA Contact</th>
<td>dri-devel@lists.freedesktop.org
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</tr></table>
<p>
<div>
<pre>VDPAU support appears to be broken on radeonsi as of git commit
0692ae34e939845e5185d3bdd33ddfe4afcdb995 "ac: move ac_get_num_physical_sgprs
into radeon_info". Trying to play back videos using MPV 0.29.1 with it enabled
fails with the following error within libvdpau_radeon: "LLVM failed to compile
a shader correctly: SGPR:VGPR usage is 56:20, but the hw limit is 0:0" (or
0:256 without the subsequent commit that does the same thing with
ac_get_num_physical_vgprs). I assume that information about the limits isn't
getting set properly for some reason.
Tested with a Radeon HD 7770 on Linux 5.2 with mpv 0.29.1, ffmpeg 4.2.1, the
radeon kernel driver, and xf86-video-ati 19.0.1.</pre>
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