this post was submitted on 24 Jun 2025
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cross-posted from: https://buddyverse.one/post/161844

I’m on Fedora 42, running GNOME 48 (Wayland) with an RTX 4050 GPU. Trying to play Red Dead Redemption 2 via Steam using Proton Hotfix.

The game is stuck in borderless windowed mode. I can play just fine.

There’s no tag in the system.xml.

I only changed the framerate in system.xnl to 144, which works.

Tried -fullscreen in Steam launch options — does nothing.

Can’t switch to fullscreen from in-game either, there’s no option.

Not using Gamescope. Didn’t touch anything else. No VSync changes. No other launch flags.

Is there any way to force this game into actual fullscreen under Proton?

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