https://bugs.freedesktop.org/show_bug.cgi?id=89987
--- Comment #4 from Christian König <deathsimple at vodafone.de> --- (In reply to James Le Cuirot from comment #0) > This has similarities to bug #69120 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. Yeah, that is indeed a completely different issue, so opening up a new bug report was the right thing to do. > [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. 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. -- You are receiving this mail because: You are the assignee for the bug. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20150413/9829f765/attachment-0001.html>
