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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Slow VDPAU (rv770_restrict_performance_levels_before_switch failed)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89987#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Slow VDPAU (rv770_restrict_performance_levels_before_switch failed)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89987">bug 89987</a>
from <span class="vcard"><a class="email" href="mailto:deathsimple@vodafone.de" title="Christian König <deathsimple@vodafone.de>"> <span class="fn">Christian König</span></a>
</span></b>
<pre>(In reply to James Le Cuirot from <a href="show_bug.cgi?id=89987#c0">comment #0</a>)
<span class="quote">> This has similarities to <a class="bz_bug_link
bz_status_NEW "
title="NEW - With dpm=1 vdpau is not usable"
href="show_bug.cgi?id=69120">bug #69120</a> but I believe that to be a different
> issue because it involves much older kernel versions and a lot has changed
> since then, plus it used to work for me until 3.18.</span >
Yeah, that is indeed a completely different issue, so opening up a new bug
report was the right thing to do.
<span class="quote">> [drm:rv770_dpm_set_power_state [radeon]] *ERROR*
> rv770_restrict_performance_levels_before_switch failed
>
> This led me to try booting with radeon.dpm=0. Under the high profile, low
> quality is smooth and high quality improves to just jumpy. Under the dynpm
> method, both are smooth.
>
> I have two displays connected using Zaphod mode, both normally at 1080p. If
> I disconnect the second, playback is smooth. If I set the second to some low
> resolution like 720x480 but play 1080p video on the first, playback is
> smooth. I'm not sure whether this behaviour is a symptom or a cause.</span >
Thanks for the detailed report, but unfortunately I can't help much and Alex
need to take a look at this.
The issue is that the driver send a message to the SMU to raise the clocks for
playback and with two connected monitors that fails for some reason.</pre>
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