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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTABUG - `radeon_ib_ring_tests` takes 0.5 s on resume"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100761#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTABUG - `radeon_ib_ring_tests` takes 0.5 s on resume"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100761">bug 100761</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 Paul Menzel from <a href="show_bug.cgi?id=100761#c3">comment #3</a>)
<span class="quote">> Interesting. What part is responsible for this? AtomBIOS?</span >
No, that is completely unrelated to AtomBIOS.
The PLL just needs awfully long to settle and booting the firmware doesn't
necessary succeed on the first try sometimes.
If the later happens this can even take multiple seconds until everything is
settled.
<span class="quote">> Does the UVD hardware need to start up before displaying something on the
> screen, or could it be moved to the user space driver?</span >
Yes, all blocks must be started correctly for power management to work because
we have a lot of interactions between the different blocks of the hardware.
<span class="quote">> How long does it take on the new hardware?</span >
I honestly don't know in detail. On newer hardware you give a single command to
the power management uC and it does everything needed in the background.</pre>
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