Desktop snaps are not working in KDE

[Simon Fels]

Hey everyone,

we currently see bug reports (e.g.
https://bugzilla.opensuse.org/show_bug.cgi?id=1031501) that certain
snaps are not working in KDE on openSUSE (42.2 / Tumbleweed). On the
same distribution, when I run the snaps within Gnome, everything works
as it should and the applications are starting up.

I didn't looked much into the details yet. keepassxc is one of the snaps
which fail to start:

simon at linux-82h5:~> keepassxc
No protocol specified
QXcbConnection: Could not connect to display :0
Aborted

As those snaps include Qt/GTK libraries from Ubuntu I can only guess
that there are some incompatibilities between KDE on openSUSE and the
libraries we ship. Also there is no wayland in the game. I verified both
Gnome and KDE are running under X11.

Anyone has a good idea what could be wrong here?

regards,
Simon