Tux Machines

So let’s talk about this Wayland thing

Posted by Rianne Schestowitz on Sep 18, 2023

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Wayland. It comes up a lot: “Bug X fixed in the Plasma Wayland session.” “The Plasma Wayland session has now gained support for feature Y.” And it’s in the news quite a bit lately with the announcement that Fedora KDE is proposing to drop the Plasma X11 session for version 40 and only ship the Plasma Wayland session. I’ve read a lot of nervousness and fear about it lately.

So today, let’s talk about it!

Wayland is a set of protocols that govern how a compositor draws stuff on the screen, and how apps interact with the compositor’s drawing-stuff-on-the-screen infrastructure. It’s similar to the HTTP and SMTP protocols that govern how web browsers and email clients send and receive web pages and data.

Wayland also includes an implementation of those protocols in a set of extremely lightweight libraries called libwayland-client and libwayland-server that offer stable and versioned APIs. Apps and compositors such as KDE’s KWin and GNOME’s Mutter use those APIs to do stuff.

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