this post was submitted on 23 Oct 2025
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Maybe you should consider using
gamescope? This is what the steam deck uses internally to isolate games so that they fight with the window manager less often.On KDE Kubuntu, you should have no problem installing it if you've installed steam as a
.debfrom the website. Basically, install it either from source or repo (whichever is recommended for ubuntu) and then modify your steam game settings to something akin to the following:This will launch the game in an isolated WM so that it interferes less with your existing window manager. There's a tonne of settings, so
gamescope --helpmight give you more details.Steam is apparently working on making this easier to access by supplying it with all steam installations in the future, IIRC, but work there isn't finished yet.
Oh nice, just read the page. I haven't installed steam on her system yet as she doesn't need it, she is running through lutris and this looks like it will work. I will definitely test this on sat when she isn't home, thanks
Let me know how it goes.
Another feature that might be useful in the arsenal is that you can purposely downclock the refresh rate of the gamescope session when the window is out-of-focus, which means you can put less burden on the computer when multi tasking. Obviously the game will run at a lower frame rate when focus is away, but this might be OK if you want to free up more system resources for watching videos.
But like the other use said, a good place to start is making sure hardware accel is on within Firefox (or whatever browser you're using.)
Once gamescope even helped me recognizing my gamepad for a very specific game on Steam, which otherwise just didn't want to. I think you can use gamescope without Steam too.