https://bugs.kde.org/show_bug.cgi?id=395419

--- Comment #9 from Ardith Metz <itgvk...@grr.la> ---
(In reply to David Edmundson from comment #8)
> I do not get the impression upstream points to us after Olivier analyses
> what's happening.
> 
> It's a weird quirk of them putting -listen with the wayland socket which
> implicitly disables default listeners that you've apparently added when
> compiling your X.

I didn't compile my X. I use official Archlinux package. There isn't any
listening option enabled during compilation[1]. The fact is when I start
Xserver without  '-nolisten tcp' it's listening on network sockets so it's the
default behavior. I test this with with xorg 1.20 (the build details are in
linked Archlinux site). This may be related to using new meson build system
which doesn't even have 'listen' option[2].

> 
> Interestingly I do put -nolisten tcp in SDDM, so I'm more obliged to add it
> here.

You didn't put it there. It's in default SDDM configuration[3]. It's in default
GDM configuration[4]. It's in default lightdm configuration[5].

Regardless of what the default xorg behavior is, virtually everyone is
explicitly disabling listening on tcp sockets just to be on the safe side.

The point of this issue is that kwin_xwayland should follow the common
practices.

[1]https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/xorg-server#n80

[2] https://cgit.freedesktop.org/xorg/xserver/tree/meson_options.txt

[3]
https://github.com/sddm/sddm/blob/815ee034303d51ce3850a533c2023eaf5eb09cae/data/man/sddm.conf.rst.in#L103

[4]
https://github.com/GNOME/gdm/blob/f7bda8dac60eb556709fba085248df5395d09a56/data/gdm.schemas.in.in#L73

[5]
https://github.com/CanonicalLtd/lightdm/blob/fe28fb17147611a99c03bf593f10f1fb73d80c59/data/lightdm.conf#L99

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