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<body><span class="vcard"><a class="email" href="mailto:stephane.travostino@gmail.com" title="Stéphane Travostino <stephane.travostino@gmail.com>"> <span class="fn">Stéphane Travostino</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTABUG - constant fps drops with Intel and Radeon"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87886">bug 87886</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEEDINFO
</td>
<td>RESOLVED
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>NOTABUG
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTABUG - constant fps drops with Intel and Radeon"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87886#c30">Comment # 30</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTABUG - constant fps drops with Intel and Radeon"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87886">bug 87886</a>
from <span class="vcard"><a class="email" href="mailto:stephane.travostino@gmail.com" title="Stéphane Travostino <stephane.travostino@gmail.com>"> <span class="fn">Stéphane Travostino</span></a>
</span></b>
<pre>Solved!
Yes, forcing the min/max i915 freq didn't stop the GPU from going to the low
frequency by itself, so as you say it's something outside the control of the
kernel.
This machine is a Sony Vaio VPCSA series, and has a "sony_laptop" module to
control keyboard backlight, and.. thermal control.
By default "/sys/devices/platform/sony-laptop/thermal_control" is set to
"balanced", changing it to "performance" I get:
- Stable FPS on both Intel & Radeon
- Intel CAGF frequency stable on max when running intensive OpenGL operations
- No more FPS drops
Thanks everybody for the help troubleshooting this, marking this as NOTABUG.</pre>
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