[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 #5 from txtsd <thexerothermicsclerodermoid at gmail.com> ---
(In reply to Michel Dänzer from comment #4)
> (In reply to txtsd from comment #0)
> > The stuttering is caused by enabling TearFree via xrandr.
> > When on `auto`, there is no stuttering, but when enabled by setting it to
> > `on`, there is intense stuttering noticeable when dragging windows around,
> > but it's also very noticeable when just moving the mouse around on the
> > desktop with no windows open.
> 
> Since HW cursor updates are always supposed to work without delay, and there
> is no sign of an issue in the attached userspace information, this seems
> like a kernel (DC?) issue.
> 
> In the amd-gfx mailing list thread, you said that this started on
> 2018-03-07. Is that just when you enabled TearFree for the first time, or
> did this actually not happen with older kernels?

Yep. That was the first time I altered the TearFree property, and that's when
it first appeared. I hadn't noticed it prior to that.

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