Bug#1008992: xwayland: all X clients hang indefinitely waiting for /tmp/.X11-unix/X0

[Paul Cercueil <paul@crapouillou.net>]

Le mer., juil. 6 2022 at 18:56:47 +0200, Michel Dänzer 
<michel.daenzer@mailbox.org> a écrit :
> On 2022-07-06 18:00, Paul Cercueil wrote:
> >  Le mer., juil. 6 2022 at 16:44:46 +0200, Michel Dänzer 
> > <michel.daenzer@mailbox.org> a écrit :
> > >  On 2022-07-06 14:33, Paul Cercueil wrote:
> > > >   I don't see it even trying to open the socket…
> > >
> > >  I think Olivier Fourdan figured it out on IRC #gnome-shell: All 
> > > your symptoms can be reproduced if the environment variable 
> > > GDK_BACKEND=wayland is set for gnome-shell & gsd-xsettings. It's 
> > > likely that this is in your environment for some reason (it's not 
> > > set by default by anything I know of).
> >
> >  That was it!
> >
> >  I set GDK_BACKEND=wayland in my ~/.bash_profile in order to get 
> > Firefox to use Wayland.
>
> FWIW, I use MOZ_ENABLE_WAYLAND=1 for this.

Yes, I do set MOZ_ENABLE_WAYLAND=1 as well. It used to also require 
GDK_BACKEND=wayland, but it is not the case anymore, apparently.

> >  Removing GDK_BACKEND=wayland from the environment fixes it.
>
> Great.
>
>
> I've created 
> https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2496 & 
> https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/merge_requests/302 
> to make mutter & gnome-settings-daemon robust against this.
>
>
> Assuming it was the same cause for Harlan, I suggest reassigning this 
> bug to libmutter-10-0.

Understood. Thanks again.

Cheers,
-Paul