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Planning to upgrade GPU from Nvidia to AMD. Any pitfalls I should know about? (reddthat.com)

submitted 1 day ago by Telorand@reddthat.com to c/linux@programming.dev

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I'm running CachyOS, and having an Nvidia card, I'm using their Nvidia-specific kernel. I know this 3060 won't last forever, and I'm planning to upgrade to an AMD card for a better overall experience.

Is there anything I should be aware of regarding the kernel or other compatibility when switching brands? Can I simply plug in the new one and run pacman -Syu?

Sidenote: I will plan around my PSU's output, so no need to advise regarding physical compatibility.

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[–] BurgerBaron@quokk.au 3 points 1 day ago* (last edited 1 day ago) (1 children)

It's almost plug&play for you then. The only thing besides following the wiki that's already mentioned is to look up AMD specific Proton launch arguments like forcing games to use FSR4.

[–] Telorand@reddthat.com 3 points 1 day ago (1 children)

Oh, thank you! I would have absolutely missed that little detail.

[–] BurgerBaron@quokk.au 1 points 1 day ago* (last edited 1 day ago)

No problem. There's also another handy tool here:

https://github.com/optiscaler/OptiScaler/blob/master/Spoofing.md#linux

You can spoof DLSS support and actually use FSR4 instead with games that don't officially support FSR, quite handy.

Otherwise AFAIK the Proton command "PROTON_FSR4_UPGRADE=1" will only upgrade games officially supporting older versions of FSR.