[Bug 105530] Stuttering on Raven Ridge when TearFree is on

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105530

--- Comment #15 from Michel Dänzer <michel at daenzer.net> ---
(In reply to Andrew Sheldon from comment #14)
> Is this expected behaviour?

I'm afraid it might be at this point, due to TearFree always incurring an
additional GPU copy.

> If so, it might be useful to have the ability to disable the feature for
> fullscreen windows, much like compositing managers have the ability to
> unredirect fullscreen windows.

Well, it's not quite the same, since even fullscreen windows can tear without
page flipping. But yeah, it's possible to eliminate the additional GPU copy
while a DRI3 client is page flipping, just haven't got around to implementing
it. Anyway, that's a separate issue from the stuttering and should be tracked
in a separate report.

BTW, I don't suppose xf86-video-amdgpu 18.1.0 makes any difference for the
stuttering?

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