[Bug 110659] pageflipping seems to cause jittering on mouse input when running Hitman 2 in Wine/DXVK with amdgpu.dc=1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110659

--- Comment #30 from Nicholas Kazlauskas <nicholas.kazlauskas at amd.com> ---
(In reply to tempel.julian from comment #29)
> The patches by Nicholas are now merged in drm-next-5.4 branch (tested with
> recent commit that bases the branch on 5.3-rc3), but the mouse input issue
> in certain games is still unaffected.
> 
> I was also able to reproduce it with a different system (also with RX 580)
> which features a 60Hz FreeSync display, it definitely makes FreeSync
> impossible to use in the aforementioned titles.

I still can't reproduce on any setup I've tried.

Here is the current setup I have:

RX580 1920x1080 @ 144Hz
amd-staging-drm-next (6c7a8d5c0772)
xf86-video-amdgpu 19.0.1-1
mesa 19.1.4-1
plasma-desktop 5.16.4-1

There are no spikes in the DXVK overlay in Hitman 2 when moving the mouse and
no noticeable jitter in input.

I am using plasma with the compositor enabled, tearing prevention auto and
fullscreen redirection allowed. PageFlip is enabled in xf86-video-amdgpu.

I do see stutters in the graph when moving the cursor over the mission tiles on
the menu, but this is GFX stuttering - not display. Moving the cursor at the
top of the screen in the menu produces no stuttering.

FreeSync isn't active since this is DXVK.

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