[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 #43 from Nicholas Kazlauskas <nicholas.kazlauskas at amd.com> ---
Created attachment 145139
  --> https://bugs.freedesktop.org/attachment.cgi?id=145139&action=edit
0001-drm-amd-display-Test-patch-for-disabling-color-adjus.patch

>From your video it looks like something is issuing a lot of full updates. Those
are slow enough that they can miss the current vblank window and be forced to
wait until the next one with vsync on.

I've attached a debug patch you can try that should disable color adjustments
from triggering full updates.

I've also added some debug information to know when full updates are being
issued in case it was something other than color management.

You can view that output with log level 4, ie.

echo 0x4 > /sys/module/drm/parameters/debug

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