Hi,

Since two weeks (approx.), my X user session (started with lightdm) does not
show up in loginctl, nor console session:

# loginctl 
   SESSION        UID USER             SEAT            

0 sessions listed.

As a result, a lot of thing does not work, like NetworkManager, since it tells
that my session cannot be found on the bus. I'm using Xfce, so my session is
not too dependent on other D-Bus features.

I'm open for more log and debug, but I don't know where to start.

For now, I'm starting my network connection using nmcli as root.