RE: Cannot start a gnome-3.28.x wayland session with elogind

[John Frankish <john frankish outlook com>]

> > > > > > > Any suggestions on how to start a gnome wayland with elogind (mutter-3.28.2 is compiled against 
> > > > > > > > it) would be gratefully received.
> > > > > > >
> > > > > > > I've compiled gnome-3.28.x and can start an X11 session by calling gnome-session from startx.
> > > > > > >
> > > > > > > I know wayland works because I can start weston like this:
> > > > > > >
> > > > > > > $ XDG_SESSION_TYPE=wayland XDG_RUNTIME_DIR=/run/user/1001 weston-launch
> > > > > > >
> > > > > > > ..and it reports WAYLAND_DISPLAY=wayland-0
> > > > > > >
> > > > > > > However, when I try to start a gnome wayland session like this:
> > > > > > >
> > > > > > > $ XDG_SESSION_TYPE=wayland XDG_RUNTIME_DIR=/run/user/1001 gnome-session
> > > > > > >
> > > > > > > ..I get:
> > > > > > >
> > > > > > > (gnome-shell:2746): mutter: Failed to create backend: Unable to open display, DISPLAY not set
> > > > > > > gnome-session-binary[2722]: WARNING: App 'org.gnome.Shell.desktop' exited with code 1
> > > > > > >
> > > > > > > I've verified that elogind is running and setting $DISPLAY does not change anything (isn't it 
> > > > > > > for
> > > > > > > X11?).
> > > > > > Is there a better mailing list to use to ask questions like this?
> > > > > >
> > > > > > I can't find a mutter mailing list, does one exist?
> > > > > >
> > > > > > Meanwhile I've managed to get as far as:
> > > > > >
> > > > > > $ gnome-shell --wayland
> > > > > > ..
> > > > > > gnome-shell:22377): mutter WARNING: Can't initialize KMS backend: Could not get session ID: No 
> > > > > > such file or directory.
> > > > > >
> > > > > > Is there an equivalent to "weston-launch" for gnome-shell?
> > > > > Which version has your gdm?
> > > > Gdm-3.28.0 is installed (because gnome-session/gjs will fail without the gdm typelib being present), 
> > > > but not used.
> > > >
> > > > I'm also not using any gdm equivalent.
> > > But files of gdm are there.
> > > gdm 3.28.0 and 3.28.1 have Bugs.
> > >
> > > gdm 3.28.2 should be installed.
> > >
> > > There was apparently ransomware Installation attempt in gdm 3.28.0 over two weeks ago.
> > I compiled and installed gdm-3.28.2, but it did not change anything.
> In complete Installation of gnome - Did you install and compile each package separated?
>
> gnome packages should have altogether Version 3.28.2
>
> I know that currently Ubuntu 18.04 has trouble with gnome, gdm and gnome-shell too
> (Update is still in process there...) - But in solus Linux all is now working properly.
I discovered that, using su from shadow, I can initialise elogind using the following:

su - $USER

..where I am already $USER.

Then both wayland and X11 sessions work :)

John