Creating new user didn't helped. I created new user (did this Guix way, via adding to config and reconfiguring the system) and logged it as a new user. Still X11 system displays with `xrandr`, and `echo $XDG_SESSION_TYPE`. I don't think there is a need to try moving all home files, creating new user should be enough to test provided option. Although I noticed a gear icon below in the right of the gdm screen when logging in as a default user (saw that in Ubuntu) with options "GNOME" or "GNOME on Xorg". Trying to login in "GNOME" (Wayland supposedly) gives a black screen for ~2s.  After couple attempts logged back into "GNOME on Xorg". Attached logs again. They says something about DBUS. Any ideas? --- (gsd-keyboard:5189): dbind-WARNING **: 13:35:36.273: AT-SPI: Error retrieving accessibility bus address: org.freedesktop.DBus.Error.ServiceUnknown: The name org.a11y.Bus was not provided by any .service files (gsd-xsettings:5219): dbind-WARNING **: 13:35:36.476: AT-SPI: Error retrieving accessibility bus address: org.freedesktop.DBus.Error.ServiceUnknown: The name org.a11y.Bus was not provided by any .service files GNOME Shell-Message: 13:35:36.777: Registering session with GDM The XKEYBOARD keymap compiler (xkbcomp) reports: > Warning:          Unsupported maximum keycode 708, clipping. >                   X11 cannot support keycodes above 255. Errors from xkbcomp are not fatal to the X server (gnome-shell:5099): mutter-WARNING **: 13:36:02.454: Connection to xwayland lost --- On 05.09.2022 20:55, Grigory Shepelev wrote: > Had some info from Guix Matrix channel: > > GDM does wayland too with the option set to #t. I was able to get it > to work going back from sddm, but I had to remove the home folder and > recreate it from scratch, since gnome session was crashing on login. I > had no problem starting gnome on a new account so i figured something > was hanging around that cause a problem even after deleting all caches > and configs etc. > > By “home folder” I mean my user’s directory /home/use > > https://matrix.to/#/!jivGmMiiorFwdgwaxc:matrix.org/$W4HJQCzv8G0aHM3_PAFrtUaj6Q3aS18vMZCwlMch71I?via=matrix.org&via=hummingbard.com&via=privacytools.io > > > > Most likely will try for new user tomorrow > > пн, 5 сент. 2022 г., 16:24 Grigory Shepelev : > >    Oops. I accidentally replied privately to dev@jpoiret.xyz, not >    mentioning 57589@debbugs.gnu.org. I hope the history can be recovered >    from this message. > >    Josselin recommended to > >    - check permissions on /tmp/.X11-unix/ (gdm user should have r+w >    permissions) > >          shegeley@zone51 /tmp$ ls -lah .X11-unix/ >          total 0 >          drwxrwxrwt 2 gdm      gdm    80 сен  5 16:12 ./ >          drwxrwxrwt 6 root     root  160 сен  5 16:16 ../ >          srwxrwxrwx 1 shegeley users   0 сен  5 16:12 X1 >          srwxr-xr-x 1 gdm      gdm     0 сен  5 16:12 X1024 > >    -  check /var/lib/gdm/, doesn't have the proper permissions > >         Hm. That's really strange. For some reason /var/lib/gdm had >         "transmission" as user-group. I assure you that I didn't > explicitly >         do any "dirty stuff" like that permission changing in my config > > >         shegeley@zone51 /tmp$ sudo ls -lah /var/lib/gdm >         total 0 >         drwx------ 1 gdm  gdm           38 авг 26 21:46 . >         drwxr-xr-x 1 root root         248 авг 28 18:37 .. >         drwxr-xr-x 1  973 transmission  62 авг 26 21:46 .cache >         drwx------ 1  973 transmission  44 авг 26 21:46 .config >         drwx------ 1  973 transmission  10 авг 26 21:46 .local >         shegeley@zone51 /tmp$ sudo chown -R gdm:gdm /var/lib/gdm >         shegeley@zone51 /tmp$ sudo ls -lah /var/lib/gdm >         total 0 >         drwx------ 1 gdm  gdm   38 авг 26 21:46 . >         drwxr-xr-x 1 root root 248 авг 28 18:37 .. >         drwxr-xr-x 1 gdm  gdm   62 авг 26 21:46 .cache >         drwx------ 1 gdm  gdm   44 авг 26 21:46 .config >         drwx------ 1 gdm  gdm   10 авг 26 21:46 .local > > >    After changing it was able to launch into GDM, but with X11 as display >    manager :( Attached new logs. > > >    On 05.09.2022 10:23, Josselin Poiret wrote: >     > Hi again, >     > >     > Grigory Shepelev writes: >     > >     >> My config is heavily depends on it's directory (passing it with >     >> --load-path). I can (and will) publish it all (I've been >    planning to do >     >> so) but I'd like to polish few parts. >     >> >     >> Any exact part are you looking for in config?  I attached my >    system-wide >     >> services. >     > I asked for that partly because it helps identifying common >    errors, and >     > it's always better for people debugging to have access to all the >     > information, and partly because I couldn't see anything that >    could help >     > in the logs.  However, it seems mutter can't write into >    /tmp/.X11-unix/, >     > could you check that the gdm user has the permission to write >    there?  It >     > should be rwxrwxrwx.  I don't see any modification in your config >    that >     > would prevent the x11-socket-directory-service from >    %desktop-services to >     > run.  Also, it seems that /var/lib/gdm/ doesn't have the proper >     > permissions, maybe because of [1].  You can try `sudo chown -R >    gdm:gdm >     > /var/lib/gdm` to fix that. >     > >     > [1]https://issues.guix.gnu.org/36508 >     > >     > HTH. >