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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 microcode fails to load on HD 8970M (Neptune XT -- PITCAIRN)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77244">77244</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>UVD microcode fails to load on HD 8970M (Neptune XT -- PITCAIRN)
</td>
</tr>
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<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>nmschulte@gmail.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Radeon
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=97143" name="attach_97143" title="Linux kernel log">attachment 97143</a> <a href="attachment.cgi?id=97143&action=edit" title="Linux kernel log">[details]</a></span>
Linux kernel log
I have a Clevo P150SM based laptop with an Intel HD 4600 iGPU and an AMD
Radeon HD 8970M dGPU. I receive the following errors when the Radeon
DRI/DRM implementation attempts to initialize the card:
[ 65.525470] [drm:uvd_v1_0_start] *ERROR* UVD not responding, trying to reset
the VCPU!!!
[ 66.537637] [drm:uvd_v1_0_start] *ERROR* UVD not responding, trying to reset
the VCPU!!!
[ 67.549797] [drm:uvd_v1_0_start] *ERROR* UVD not responding, trying to reset
the VCPU!!!
[ 68.561967] [drm:uvd_v1_0_start] *ERROR* UVD not responding, trying to reset
the VCPU!!!
[ 69.574142] [drm:uvd_v1_0_start] *ERROR* UVD not responding, trying to reset
the VCPU!!!
[ 70.586334] [drm:uvd_v1_0_start] *ERROR* UVD not responding, trying to reset
the VCPU!!!
[ 71.598533] [drm:uvd_v1_0_start] *ERROR* UVD not responding, trying to reset
the VCPU!!!
[ 72.610705] [drm:uvd_v1_0_start] *ERROR* UVD not responding, trying to reset
the VCPU!!!
[ 73.622877] [drm:uvd_v1_0_start] *ERROR* UVD not responding, trying to reset
the VCPU!!!
[ 74.635068] [drm:uvd_v1_0_start] *ERROR* UVD not responding, trying to reset
the VCPU!!!
[ 74.654938] [drm:uvd_v1_0_start] *ERROR* UVD not responding, giving up!!!
[ 74.654955] [drm:si_startup] *ERROR* radeon: failed initializing UVD (-1).
This appears to happen on video mode changes or vtty changes, I'm not
quite sure really what triggers it other than initial loading. When it
does occur, the system appears to hang for a short time (15 seconds or
so) while the dGPU is active, and then "comes back" after the dGPU is
disabled. The Clevo P150SM has an LED showing the dGPU power state,
and debugfs/vgaswitcheroo seems to corroborate this.
I'm also experiencing issues with PRIME (and e.g. xserver seg-faults when
building from source to try new code), but this issue exists out of the box on
Debian Sid, and seems to persist even with newer Mesa and DRM. I have a bug
report for the PRIME/hybrid graphics issue as well, and it may end up that
these are related: <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - PRIME/Hybrid graphics render offload issues with gen7"
href="show_bug.cgi?id=77094">https://bugs.freedesktop.org/show_bug.cgi?id=77094</a>
Finally, this bug looks similar to mine, though I am not messing with PRIME (at
least explicitly; no xrandr --setprovider* calls and no DRI_PRIME env. var. is
set): <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - UVD initialization fails while dGPU is powered on by DRI_PRIME"
href="show_bug.cgi?id=75234">https://bugs.freedesktop.org/show_bug.cgi?id=75234</a>
There is a downstream bug report here:
<a href="https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=743659">https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=743659</a></pre>
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