The only real difference is that desktop mode uses x and game mode uses Wayland. You can usually get a better experience in game mode (Wayland) because of the performance tools that let you easily cap frame rate/etc.
That is interesting… does this have an impact on performance? Or maybe having less stutter or Freesync with Wayland?
Game mode uses gamescope, not Wayland.
We’re still waiting for wine and gamescope to be fully wayland compatible.
My understanding is that game mode uses Wayland as the display server, and then game scope is run as a compositor for running games and apps. However dispite game scope running on Wayland, it doesn't support Wayland clients yet. So all games running on it have to be run through xWayland instead.
Forcing a program or game to run in Wayland mode will prevent it from running, even though the base display server is Wayland. Honestly it's a confusing setup, but I'm assuming backward x support was the priority for compatibility reasons.
TIL, thanks!
Gamescope is a Wayland compositor - It's running in Wayland when in game mode.
Performance is the same regardless.
@cianmor I found that the resolution of games was correct for my monitor more often when in desktop mode. Also allows for using steam features you can’t in game mode. But I tend to switch as required if something seems to work better in one over the other
in game mode the resolution is fixed on 800p by default. you have to switch to native resolution in the steam settings of a game
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