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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [NVA8] nouveau screen corruption and X lockup when reclocking"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89273">89273</a>
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<th>Summary</th>
<td>[NVA8] nouveau screen corruption and X lockup when reclocking
</td>
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<th>Product</th>
<td>xorg
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Driver/nouveau
</td>
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<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>maxim.stargazer@gmail.com
</td>
</tr>
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<th>QA Contact</th>
<td>xorg-team@lists.x.org
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=113734" name="attach_113734" title="Thinkpad T410, Quadro NVS 3100M (256M GDDR3) vbios dump">attachment 113734</a> <a href="attachment.cgi?id=113734&action=edit" title="Thinkpad T410, Quadro NVS 3100M (256M GDDR3) vbios dump">[details]</a></span>
Thinkpad T410, Quadro NVS 3100M (256M GDDR3) vbios dump
Kernel: 3.19.1
Hardware: Thinkpad T410, Quadro NVS 3100M (256M GDDR3) [similar hw but
different VRAM compared to <a class="bz_bug_link
bz_status_NEW "
title="NEW - [NVA8] nouveau GPU lockup when reclocking"
href="show_bug.cgi?id=88415">bug 88415</a>]
Problem: reclocking between pstates 3 and 7 is flawless, but reclocking to
pstate f causes problems.
Possible scenarios:
1. X server is not running, trying to reclock from the fb.
echo f > pstate
Image gets corrupted (vertical flickering lines), but there is no lockup and
after
echo 7 > pstate
everything gets back to normal. After that system works just fine.
Dmesg attached (with nouveau.debug=debug)
2. X server is running.
echo f > pstate
Screen gets corrupted in similar fashion, but system locks up and after few
second stops to respond even to SysRq.
I managed to get dmesg for this scenario too.
I also mmiotraced functioning reclocking with the nvidia blob. Trace is quite
large (120MB). Should I truncate it somehow to upload, or just provide as is?</pre>
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