Gsync/VRR does not work with PresentMon Overlay

[codecrafting-io]

Recently, I noticed that VRR/G-Sync no longer works with PresentMon overlay. Whether with DX11 or DX12, when I use the overlay, my display's FPS OSD goes to the maximum refresh rate. As soon as I disable the PresentMon OSD, VRR kicks in. I am using MPO and optimisations for full-screen games.

OS: Windows 11 26200.8655
Nvidia Driver: 596.49

[planetchili]

Thank you for the report. If you don't mind, can you try running the client with the command line option --disable-alpha and let us know whether the issue persists with that option enabled?

[codecrafting-io]

@planetchili Hey I tried to run the desktop client with the paramenter --disable-alpha, but still behaves the same unfortunately

[DeboLVAR]

This is clearly a global issue, since it also happens with Intel gpu (b580), as well as with the drivers' built-in overlay, which I believe uses PresentMon. Despite the MPO being active, the on-top overlay breaks VRR.