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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [HAWAII] GPU doesn't reclock, poor 3D performance"
href="https://bugs.freedesktop.org/show_bug.cgi?id=82201#c29">Comment # 29</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [HAWAII] GPU doesn't reclock, poor 3D performance"
href="https://bugs.freedesktop.org/show_bug.cgi?id=82201">bug 82201</a>
from <span class="vcard"><a class="email" href="mailto:kai@dev.carbon-project.org" title="Kai <kai@dev.carbon-project.org>"> <span class="fn">Kai</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=82201#c27">comment #27</a>)
<span class="quote">> Not sure if this is useful, but DPM stopped working for me once and was
> stuck at 360MHz. I was doing some testing, Heaven had 60 fps originally and
> after I run it again later, I only got 18 fps. Considering the lowest clocks
> I get with DPM enabled are 300MHz, it wasn't completely underclocked.
>
> It's definitely different from suspend to RAM, which pretty much disables
> DPM. After suspend to RAM, I always get 280MHz or so. BTW, the same thing
> with suspend to RAM also happens with Bonaire.</span >
@Marek: was that directed at me (I don't think so)? If yes, I'm unsure what I
should derive from your statement and what I should try.
(In reply to <a href="show_bug.cgi?id=82201#c28">comment #28</a>)
<span class="quote">> Did you try to "echo auto >
> /sys/class/drm/card0/device/power_dpm_force_performance_level"?
>
> It may be related to <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Performance degradation after resume"
href="show_bug.cgi?id=79806">bug #79806</a> (Performance degradation after resume), that
> should be fixed by patch I've sent to Alex recently.</span >
I've tried it now and get what was described in <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Performance degradation after resume"
href="show_bug.cgi?id=79806#c3">bug #79806, comment 3</a>:
# echo "auto" > /sys/class/drm/card0/device/power_dpm_force_performance_level
bash: echo: write error: Invalid argument
Not sure, what valid options would be for me.</pre>
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