Hello, I might need help understanding how this works.

The game in question is Magic the Gathering: Online, running on Fedora 40 through Lutri. I was able to install it there and run it acceptably fine. What I´d like to do, though, is add it to steam as a non-steam game and run it from my library. I tried everything and it just doesn´t work. I tried pointing to the setup.exe, to the MTGO.exe and all that.

When I point to setup.exe, it opens a browser and says there was an error, and MTGO.exe doesn´t run (tried forcing through Proton Experimental and Proton 8.0.).

Is there something I'm doing wrong or something I'm not doing?

Thank you

Hi all, I've been setting up my new System76 Adder laptop, installing both software for work (Docker, Node, Mattermost, etc) and gaming (Steam, Discord, etc.). However, when I try and launch Helldivers using the current version of Proton, I get this error:

Error message says \"A debugger has been found running in your system. Please, unload it from memory and restart your program.

I do not get this error on my desktop machine running the same OS (Ubuntu 22.04.4 LTS). My guess is Proton is throwing a fit at something as the error seems like it comes from Windows.

Has anyone encountered this error or similar errors?

Edit: It seems like I can't launch any Proton games, not just Helldivers. I also tried Outer Wilds but it gets stuck at a black screen. Linux-native games (like Celeste) work like a charm.

Edit: RESOLVED! I was using the Steam snap... switched to using the Steam install deb (https://store.steampowered.com/about/) and that works!

Hello, sorry in advance for my bad English.

When trying to launch certain games (more specifically Crab Champions and Ace Combat 7, which leads me to think UE4-made games are the problem), I get an error, which gets fixed if run with PROTON_USE_WINED3D=1, but unfortunately its performance is very lamentable if not making it straight-up unusable.

Crab Champions, after having installed C++ redistributables, without PROTON_USE_WINED3D: "A D3D11-compatible GPU (Feature Level 11.0, Shader Model 5.0) is required to run the engine.".

Is there a way to fix this problem without the use of PROTON_USE_WINED3D?

specs: Proton version: 8.0, OS: Debian (bullseye), GPU: GeForce GTX 1650.

Thank you in advance.

My game keeps on coming up with this message even after I tried making a new steam account and checking the integrity etc. it’s really frustrating

https://github.com/ValveSoftware/Proton/issues/4123 I want to thank the maintainers for fixing the issue.