Last issue we studied Ubuntu 21.04, which marks the distro’s shift from the X.org display server to Wayland (on amenable hardware). But this isn’t the first time Canonical tried using Wayland by default.
Ubuntu 17.10 shipped with this configuration, but users were displeased. Come to think of it, Ubuntu 17.10 (Artful Aardvark) also had an artful habit of bricking Lenovo laptops and had to be re-released. And it was disliked by fans of the Unity desktop who saw their favourite desktop replaced by Gnome. Anyway, that Wayland experiment never made it to the next Ubuntu LTS (Breezy Badger), and nor is it present in the current LTS (Focal Fossa). Things have stabilised by now, so barring any mishap the next Ubuntu LTS will finally make the shift to Wayland.
But why do we need Wayland? And what exactly is this X thing anyway? The answers are complex and have lengthy stories behind them. But hopefully this feature adds at least a small amount of clarity to the situation.
Ultimately, X has been with us for over 30 years, and it has no business serving the displays and running the applications that modern workloads entail. Wayland has been with us a while, too. It was first dreamed up in 2008 and has been powering devices (just not necessarily Linux desktop PCs) from the get-go. It’s been the default on Fedora for ages, and probably works just fine on other distros, too. Maybe even better than fine…
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