Bug#858222: Info received (Bug#858222: Info received (Bug#858222: systemd: multi-seat not working : no gdm appear in second seat when attaching graphic card))

[Frédéric]

My curiosity led me to disable wayland in GDM.

# cat /etc/gdm3/daemon.conf 
[daemon]
WaylandEnable=false

Strangely enough, nothing appears on seat0, and a GDM session opens on seat1! (the reverse situation from previously).
# loginctl list-sessions 
   SESSION        UID USER             SEAT             TTY             
         2       1000 user             seat1                           
# loginctl show-session 2 -p Type
Type=x11


Looking at the logs, it seems that I hit another bug this time (which is different from the previous setup with wayland) :
https://bugzilla.redhat.com/show_bug.cgi?id=1404849

In this case, the bug is related to GDM more than systemd : is is possible to reaffect the bug to GDM and wayland?
For the record, I tried LDM instead of GDM, and it works OK : no wayland at all but 2 seats working...

---------------------------------

root at live:~# loginctl list-sessions 
   SESSION        UID USER             SEAT             TTY             
         4          0 root             seat0            /dev/tty2       
       c11        120 lightdm          seat0                            
        11       1002 user1            seat1                            
         7       1000 user2            seat0                            

4 sessions listed.
root at live:~# loginctl show-session 4 -p Type
Type=tty
root at live:~# loginctl show-session c11 -p Type
Type=x11
root at live:~# loginctl show-session 11 -p Type
Type=x11
root at live:~# loginctl show-session 7 -p Type
Type=x11

As a summary :
Normal configuration : only seat0 working (GDM on wayland, session on X11)
disable wayland in GDM : only seat1 working, probably bug Fedora/1404849 on seat0
use LDM everywhere (and no wayland) : everything working with X11