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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>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Tearing and drm_wait_vblank kernel log spam with reverse PRIME (intel+nouveau)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92327">92327</a>
</td>
</tr>
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<th>Summary</th>
<td>Tearing and drm_wait_vblank kernel log spam with reverse PRIME (intel+nouveau)
</td>
</tr>
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<th>Product</th>
<td>xorg
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>medium
</td>
</tr>
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<th>Component</th>
<td>Driver/nouveau
</td>
</tr>
<tr>
<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mschiffer+misc@universe-factory.net
</td>
</tr>
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<th>QA Contact</th>
<td>xorg-team@lists.x.org
</td>
</tr></table>
<p>
<div>
<pre>Setup: I use reverse PRIME with a primary intel and a secondary nouveau card. I
have enabled one output on each of the cards. The reverse PRIME (nouveau)
output is set as primary output via xrandr.
Whenever there's a DRI user on the reverse PRIME screen, the following message
gets written to my kernel log once for each buffer swap:
[drm:drm_wait_vblank [drm]] *ERROR* Unsupported type value 0x7d, supported mask
0x7400003f
Both DRI2 and DRI3 cause this behaviour. I also see tearing on the nouveau
output.
Depending on the exact setup (DRI2/DRI3, different DRI users), I also get
slightly different messages:
[drm:drm_wait_vblank [drm]] *ERROR* Unsupported type value 0x15d, supported
mask 0x7400003f
[drm:drm_wait_vblank [drm]] *ERROR* Unsupported type value 0x400015d, supported
mask 0x7400003f
Hardware:
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation GF119M [Quadro NVS 4200M]
(rev a1)
Software:
* xserver 1.17.2
* xf86-video-intel 2.99.917-476-g4e668dd
* xf86-video-nouveau 1.0.11-31-g1ff13a9
I opened a bug report for the kernel first (see
<a href="https://bugzilla.kernel.org/show_bug.cgi?id=105601">https://bugzilla.kernel.org/show_bug.cgi?id=105601</a> ), but was told that this is
a userspace bug.</pre>
</div>
</p>
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