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How is running a game with proton different in Steam and Lutris? (feddit.de)
submitted 2 years ago by to c/linux_gaming@lemmy.ml
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I have had numerous cases where a non-Steam game would run perfectly through Steam with Proton but the same game wouldn't even launch through Lutris, even though I used the exact same Proton version. How are they different? Is there anything that Steam does in the background that Lutris won't?

I'd love if anyone could shed some light on this for me.

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[–] 2 points 2 years ago* (last edited 2 years ago) (1 child)

Proton isn't meant to be run outside of Steam at all. If you are running games in Lutris you need to use the "lutris-GE-Proton8-14" you can find in the Lutris wine version manager. There is actually a huge bold disclaimer about that on the proton-ge-custom repo I linked in my last comment. Proton (and Steam) bundles a bunch of libraries together while Lutris uses whatever versions your system has installed.

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  • [–] [S] 2 points 2 years ago (1 child)

    Yeah I know, I'd just like to know how they are different. I imagine some of it has to do with controller compatibility and steam features such as overlay and achievement integration?

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  • [–] 16 points 2 years ago* (last edited 2 years ago) (1 child)

    Proton and the Steam Runtime bundle a bunch of different libraries so they all play nice together and are consistent across everybody's machines. There are the obvious things like DXVK and VKD3D, but the Steam Runtime includes basically all of the system files that affect games. It's not quite the same thing but for the sake of simplicity think of it like running in a virtual machine. The Steam Runtime is using libraries from Debian. It is the same concept as docker if you know how that works.

    Lutris on the other hand lets you select DXVK and VKD3D versions independently of the wine version, and uses your system's actual libraries rather than the standardized ones. If you're wondering why running Proton inside of Lutris is not working it's because Lutris is missing the Steam Runtime. It's searching for a container that doesn't exist so it can't even start in the first place.

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