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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 constantly flickers when clocked to lowest pstate"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89113">89113</a>
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<th>Summary</th>
<td>NVA8 constantly flickers when clocked to lowest pstate
</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)
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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
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<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
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<th>Reporter</th>
<td>charleszhang77@gmail.com
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<th>QA Contact</th>
<td>xorg-team@lists.x.org
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=113426" name="attach_113426" title="VBIOS">attachment 113426</a> <a href="attachment.cgi?id=113426&action=edit" title="VBIOS">[details]</a></span>
VBIOS
with stock nouveau from kernel 3.19.0-1.fc22.x86_64
this nva8 came with a thinkpad t410
my pstate file looks like this:
03: core 135 MHz shader 270 MHz memory 135 MHz
07: core 405 MHz shader 810 MHz memory 405 MHz
0f: core 606 MHz shader 1468 MHz memory 790 MHz
AC: core 405 MHz shader 810 MHz memory 405 MHz
when clocking to 07 or 0f everything works.
however, when clocking to pstate=03 i get constant flickering (maybe <5-10 hz),
although the clocks do change, and nothing crashes. (i can change clocks back
to 07 or 0f with no more flickering)
vbios attached
mmiodump where i fumbled around with powermizer while the blob reclocked
(no second monitor attached):
<a href="https://www.dropbox.com/s/jjh6hpcix1swc7r/mmiotrace.log?dl=0">https://www.dropbox.com/s/jjh6hpcix1swc7r/mmiotrace.log?dl=0</a></pre>
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