this post was submitted on 28 Feb 2024
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Help using Mangohud / Gamemode with Flatpak version of Lutris and Steam (self.linux_gaming)
submitted 10 months ago by million to c/linux_gaming
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Like the title says I am trying to understand how these things should work together. Part of my issue is I don't have a good mental model on the Flatpak permissioning / sandbox model. My use case is running a game on Lutris, which is a Flatpack, and using my package install of Mangohud. I am also curious if I should using a Flatpak version of Mangohud instead of the package installed version, and understanding how I would set up Steam as a Flatpak in the future when I switch away from the packaged version.

Thanks for any helpful tips or links you can provide.

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[–] INeedMana 7 points 10 months ago

I don't use flatpak but I didn't have to configure Lutris or Steam in any way for that.

If you look around goverlay you'll find that there are two ENVs that you can set up in X/wayland service to have MangoHud automatically in every context it can render in.

So first try running with MANGOHUD=1 env exported. If that doesn't help, try mangohud steam.
If I understand correctly, flatpack run in some kind of container, so it's possible that you might need to set the env or the command, so it happens inside the container