Nvidia card sometimes renders a previous frame on wayland

[VulkanGuy]

[Feature] G-Sync/Freesync under Wayland Session

VRR seems to behave in single monitor mode on my machine with driver version 545.29.02. However, games are a different story as they and many other wayland applications exhibit out of order frames / black flickering. Much of this can be fixed by patching explicit sync into XWayland, Xorg protocols, and Wayland. Im currently running sway-1.9-dev @ 020a572e (wlroots based) with a patched wayland and xserver. This fixes black flickering and out of order frames when playing games through wine and p…

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