protonscr

RTX HDR + Fast sync = Bad colors

dxvkclosed windows
doitsujin/dxvk#4733 · opened 2025-03-05 by paweltylman · updated 2026-06-17 · 2 comments · github
Ppaweltylman 2025-03-05 github

Hello, i trying to run DirectX 9 games with RTX HDR and Fast-Sync (aka vsync fast) at the same time, normally RTX HDR wont work with Fast-Sync in DirectX.

Working with dxvk vulkan at the same time but the colors are bad/wrong.

Problem: DirectX 9 Game, Windows 11.

In dxvk.conf
dxvk.allowFse = False
Fast sync - Works.
RTX HDR - Bad/incorrect colors.

https://i.ibb.co/JjZ8xXRx/bad.jpg

In dxvk.conf
dxvk.allowFse = True
Fast sync - Does not work/tearing.
RTX HDR - Good/correct colors.

https://i.ibb.co/bjgpyK0H/good.jpg

Goal:
RTX HDR - Good/correct colors.
Fast sync - Works.

100x Thanks in advance for help.

https://www.nvidia.com/en-us/geforce/forums/rtx-technology-dlss-dxr/37/558844/rtx-hdr-applied-twice-when-program-uses-vulkan/

Ddoitsujin maintainer 2025-03-05 github

Try enabling the nvidia dxgi swapchain thingy in the driver settings I guess, but this is a driver problem and ultimately the reason why the allowFse exists in the first place. It's literally not possible to make everything work all at once out of the box on Windows.

Ppaweltylman 2025-03-05 github

Big thanks for answer, unfortunately enabling dxgi swapchain in nvcp doesn't helpd. :(

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