I've recently switched to Nobara, and has been unsure whether to go with Wayland or X11. Mostly because I've read that Wayland has issues on NVIDIA GPUs and will perform slower, so I went with X11 (On KDE). Is that still the case nowadays, or can I just use Wayland?
this post was submitted on 14 Jan 2024
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It's easy to give it a try. You just have to select it at the login screen and see for yourself if you're impacted by any issue.
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X/X11 is a client-server protocol from the age of 10Mbps networks, intended for a bunch of "dumb terminals" connected to a mainframe that runs the apps, with several "optimizations" that over time have become useless cruft.
Wayland is a local machine display system, intended for computers capable of running apps on the same machine as the display (aka: about everything for the past 30 years).
Nowadays, it makes more sense to have a Wayland system (with some RDP app if needed), than an X11 system with a bunch of hacks and cruft that only makes everything slower and harder to maintain. An X11 server app acting as a "dumb terminal", can still be run on a Wayland system to display X11 client apps if needed.
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X is old and very hard to maintain. A lot of rules about how displays work have changed drastically since X became a thing. X went along with most of those changes, which meant the introduction of more and more hacks to keep it running.
Over time X became worse and worse to work on and people realized that it's easier to write something new from scratch instead of trying to fix the decade-old technical debt in X.
That new thing was Wayland and over time most if not all people that where interested in working on desktop compositing pivoted away from X.
Wayland (as it is always the case with new software of that size) didn't hit the ground running. It had various issues at the beginning and also follows a different desig philosophy than X.
Despite a lot of issues being fixed some people are still very vocal about not wanting to use wayland for one reason or another. While some of those reasons are valid, most come from ignorance or laziness to adapt.