Seeing as the issue was solved for two other people, I had another go -
this time explicitly installing all mutter-related packages from
-proposed (and not just 'mutter'):
$ aptitude upgrade libmutter-7-0 mutter mutter-common
Lo and behold, the socket showed up:
$ sudo ss -xlp | grep Xwayland
u_str LISTEN 0 1 @/tmp/.X11-unix/X0 60747 * 0
users:(("Xwayland",pid=2371,fd=4))
u_str LISTEN 0 1 @/tmp/.X11-unix/X1 60749 * 0
users:(("Xwayland",pid=2371,fd=7))
u_str LISTEN 0 1 /tmp/.X11-unix/X0 60748 * 0
users:(("Xwayland",pid=2371,fd=5))
and I can confirm that my graphical snaps all work again. I suspect that
in my first try, not all packages were upgraded. I'm not sure, but
perhaps that points at a dependency issue with the packages in
-proposed.
** Tags removed: verification-needed verification-needed-groovy
** Tags added: verification-done-groovy
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https://bugs.launchpad.net/bugs/1897224
Title:
Graphical snaps can't run in Gnome 3.38 Wayland sessions (can't open X
display)
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