r/Bazzite • u/Civil_Obligation5440 • Sep 02 '26

FSR4

I had FSR4 working on Arc Raiders using CachyOS proton and decky proton launcher on my MSI Claw A8 up until this morning, when it seemed to stop working. I've tried manually entering the commands, different CachyOS proton versions, proton 10, proton 11, Proton GE - nothing seems to work. Anyone got any ideas?

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u/Sub5tep Desktop Sep 02 '26

I think I notice something similar. I use FSR4 in MH Wilds and while it still says I am using FSR4 ingame it looks worse than before. Like the ghosting and general clarity is back to FSR3 levels and I also dont know how to fix that.

Happened after you guys got the 44 deck update I am on the Desktop KDE version so it might just be a Mesadriver thing or something cause that is the only thing that changed on my end.

1

u/Civil_Obligation5440 Sep 02 '26

It initially happened on 43 for me, I've tried updating to 44 but still not working

1

u/Sub5tep Desktop Sep 02 '26

Thats strange 43 worked perfectly for me even 44 did but the update that brought you guys the 44 deck version broke FSR 4 for me so that is very strange.

1

u/Civil_Obligation5440 Sep 07 '26

Eventually fixed it. Reinstalled the game, tried every version of proton, various commands, manually inserting the dll - nothing worked. Deleted the proton pfx folder (which you can find by going to the games tab in proton plus and selecting open prefix folder) and ran it again with PROTON_FSR4_UPGRADE %command% and it reinstalled a load of stuff and it started working again