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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [drm:si_dpm_set_power_state] *ERROR* si_disable_ulv failed"
href="https://bugs.freedesktop.org/show_bug.cgi?id=82889#c15">Comment # 15</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [drm:si_dpm_set_power_state] *ERROR* si_disable_ulv failed"
href="https://bugs.freedesktop.org/show_bug.cgi?id=82889">bug 82889</a>
from <span class="vcard"><a class="email" href="mailto:alexandre.f.demers@gmail.com" title="Alexandre Demers <alexandre.f.demers@gmail.com>"> <span class="fn">Alexandre Demers</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=82889#c14">comment #14</a>)
<span class="quote">> (In reply to <a href="show_bug.cgi?id=82889#c11">comment #11</a>)
> > Is ULV standing for Ultra-low voltage? If so, isn't this option something
> > meant to be applied on APU only?
>
> Mmm don't know.
> Haven't digged more, but my GPU (R7-265) is running hotter than before,
> always around 39°-40° (even without any running application).
> With the kernel in debian sid, 3.16.X, I can see low temperatures in idle.
>
> I'm unable to trigger this warning booting up with radeon.dpm=0, so I think
> is something related to power management.</span >
Well, according to my journalctl log, it seems to always be triggered after a
power state switching. It doesn't do it from boot (power state 0) to
performance (power state 1), but it is later. Strangely, I see a
Sep 25 20:28:28 Xander kernel: switching from power state:
Sep 25 20:28:28 Xander kernel: ui class: performance
...
Sep 25 20:28:28 Xander kernel: switching to power state:
Sep 25 20:28:28 Xander kernel: ui class: performance
Why would it try to switch from power state 1 to power state 1 (the same power
state)? And why is it at that moment the problem arises? I'll have to do more
tests to see if this behaviour happens each time.</pre>
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