https://bugs.freedesktop.org/show_bug.cgi?id=100443
--- Comment #23 from Dieter Nützel Dieter@nuetzel-hh.de --- (In reply to Andy Furniss from comment #22)
I've always seen
[powerplay] Can't find requested voltage id in vdd_dep_on_sclk table!
on R9 285 Tonga, but powerplay works OK and there are no other errors - so I assumed it's harmless when seen alone.
Yes good point Andy, Alex told me the same some weeks ago, if remember right. But 'Zero-Fan-Mode' (right term?) do not work on my RX580. Maybe other bug report needed.