https://bugs.freedesktop.org/show_bug.cgi?id=82889
--- Comment #17 from Alex Deucher agd5f@yahoo.com --- Created attachment 107784 --> https://bugs.freedesktop.org/attachment.cgi?id=107784&action=edit disable ulv state on SI
(In reply to Alexandre Demers from comment #16)
Alex, I think this "ERROR" should be at most a warning: I've been commenting out the "return ret" when we hit the error, and everything else goes as smooth as possible.
Also, do you have any clue on the way we should dig to understand why we are hitting this error? As said by Samir, this appeared with dpm.
It's part of dpm so it only happens when dpm is enabled. ulv is a special low power state the card can go to in certain idle cases.
Does the attached patch help?