Hi,

After the recent update to Proton Experimental (which appears to have been rebased from Proton 10 to Proton 11), the amdxc64 DLL is no longer included.

Previously, this DLL enabled the use of FSR 4 on supported AMD hardware. I was successfully running FSR 4.1.0 on my RX 9070 XT using the FSR4_UPGRADE=1 option and placing amdxcffx64.dll in steamapps/compatdata/*/pfx/drive_c/windows/system32 with Valve’s Proton build, and it worked flawlessly.

With the current update, that doesn’t work anymore.

Would it be possible to reintroduce this change, or cherry-pick the relevant commit?

Relevant references:

• Pull Request: https://github.com/ValveSoftware/wine/pull/290
• Commit: https://github.com/ValveSoftware/wine/commit/0af10eca47385bf9718e7b4cbb5835905c1144d1
• Discussion / How-to: https://discuss.cachyos.org/t/fsr-4-1-0-with-vanilla-wine-on-rdna3-yes-it-actually-works/23546/18#p-81227-and-another-one-bites-the-dust-psa-edition-1

Thanks for your work!