this post was submitted on 29 Apr 2024
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Okay I think I'm following so far
And the whole "show stuff on screen" thing
I'm guessing it's kinda like: you've got a couple people sitting there wanting to play with Legos and only so much room to play. They don't have direct access to the play area because of security reasons so they have to ask someone to place the Legos for them. Wayland, X11, and Xorg are all different people they can talk to to place the Legos in a way where no one is fighting for space.
So basically it's a new way for programs to negotiate who has what part of the screen?
I'm guessing Wayland is either more feature rich or lighter on resources and that's why it's a big deal?
It's an entirely different design than X11. It gains features not possible to implement on X11, while losing many features exists in X11. People that like those new features love Wayland, while people that use those missing features hate it.
What kinds of features does it gain and lose?
The most obvious, user-visible loss of features are applications no longer able to grab/mess with contents of another application's window. Screen sharing and remote desktop was broken for a long time in wayland until it's fixed via pipewire recently. Under X11, rendering is free-for-all, where any app is free to do whatever it wants to other app's window. Heck, you can even tell mpv to play video on a cell in librecalc if you feel like it. Such shenanigans is now impossible in wayland because it's a big security risk (though I'm not sure if it's actually exploited in the wild).
The most hyped feature of wayland is better support for high resolution "retina" display. Also, you can use multiple monitors with different dpi/scaling in wayland. IIRC it's not possible on X11, though you can use xrandr to force the scaling on each monitor, though it'll result in blurry texts because the scaling is not done natively.