I'm only recently familiar with the Mutter design, but... Mutter is the graphics platform on which gnome-shell is built. Mutter supports running under a Xorg server, or none at all on bare metal (Wayland mode). So in order to provide a seamless consistent interface in the latter case it spawns Xwayland, which allows X apps to work with Wayland even when Mutter's not running on Xorg. In this way, any shell built on Mutter has the option to use Xorg or Wayland, and if using Wayland can still transparently run X apps.
"Clutter" is the graphics toolkit on which Mutter is built. "Cogl" is the graphics toolkit on which Clutter is built. Cogl uses OpenGL directly. Yes, that's probably too many layers but that's how things evolved. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1652282 Title: Xwayland not using XAUTHORITY, prevents root applications from connecting Status in gdm: Expired Status in GParted: Fix Released Status in Ubuntu GNOME: Invalid Status in gdm3 package in Ubuntu: Confirmed Status in gnome-shell package in Ubuntu: Invalid Status in gparted package in Ubuntu: Invalid Status in mutter package in Ubuntu: Confirmed Bug description: When running wayland, GDM fails to set up an XAUTHORITY file and instead relies on the process UID for authentication. This prevents applications run as root, like gparted or synaptic from connecting to the server. GDM needs to set up the XAUTHORITY file when running Xwayland just like it does when it runs the conventional Xorg. A large list of applications broken by this can be found here: https://codesearch.debian.net/search?q=Exec%3Dsu-to- root+filetype%3Adesktop+path%3A*%2Fapplications%2F*&perpkg=1 openSUSE handles this issue with this patch (from the changelog, it looks like they implemented this for their YaST settings app): https://build.opensuse.org/package/view_file/GNOME:Factory/mutter/mutter-xwayland-create-xauthority.patch?expand=1 To manage notifications about this bug go to: https://bugs.launchpad.net/gdm/+bug/1652282/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
