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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
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - UVD performance regression on linux-3.12-rc"
href="https://bugs.freedesktop.org/show_bug.cgi?id=70146">70146</a>
</td>
</tr>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>UVD performance regression on linux-3.12-rc
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>johannes.hirte@fem.tu-ilmenau.de
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Version</th>
<td>DRI CVS
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Radeon
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
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<div>
<pre>When playing h.264 videos with UVD support, the video is sluggish and mplayer
shows the "Your system is too SLOW to play this!" message after a few seconds.
git bisect points me to:
ce3537d57196dfc7094755532e1ffc1af133ca5f is the first bad commit
commit ce3537d57196dfc7094755532e1ffc1af133ca5f
Author: Alex Deucher <<a href="mailto:alexander.deucher@amd.com">alexander.deucher@amd.com</a>>
Date: Wed Jul 24 12:12:49 2013 -0400
drm/radeon/dpm: use multiple UVD power states (v3)
Use the UVD handle information to determine which
which power states to select when using UVD. For
example, decoding a single SD stream requires much
lower clocks than multiple HD streams.
v2: switch to a cleaner dpm/uvd interface
v3: change the uvd power state while streams
are active if need be
Signed-off-by: Alex Deucher <<a href="mailto:alexander.deucher@amd.com">alexander.deucher@amd.com</a>>
:040000 040000 d8c5afc839fccfe228d8880817bee5b2a35d0578
af38b8261405bd4212f856499520a50476b50b43 M drivers
GPU is a Mobility Radeon HD5470</pre>
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