Package: xwayland
Version: 2:22.1.5-1
When XWalyand starts by a compositor (Mutter, KWin) - deprecated
option "-listen" is used.
That produces warnings in log like this:
kwin_wayland_wrapper[4038]: (WW) Option "-listen" for file
descriptors is deprecated
kwin_wayland_wrapper[4038]: Please use "-listenfd"
instead.
...
org.gnome.Shell.desktop[131375]: (WW) Option
"-listen" for file descriptors is deprecated
org.gnome.Shell.desktop[131375]: Please use
"-listenfd" instead.
...
gnome-shell[132400]: (WW) Option "-listen" for file
descriptors is deprecated
gnome-shell[132400]: Please use "-listenfd" instead.
That happens because there is no xwayland.pc file
in the xwayland package or any other Debian's package.
That file is present upstream and contains important information
for compositors build systems to be aware of the new option and
use it instead of the deprecated one:
https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/593
Support of that in Mutter:
https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1682
In KWin:
https://invent.kde.org/plasma/kwin/-/merge_requests/739
If no xwayland.pc file found, compositors are built
with an old deprecated option in use, thus is the problem.
To solve this, I suggest to pick up the missing xwayland.pc
file from the upstream here or in some other (-dev?) package:
https://gitlab.freedesktop.org/xorg/xserver/-/blob/master/hw/xwayland/xwayland.pc.in
Can be reproduced on Debian Sid and earlier, or any other
derivatives (Ubuntu, etc.)