Multiseat setup - lightdm.conf

[LightDM]
greeter-user=root
user-authority-in-system-dir=false
common-vt=true

[SeatDefaults]
xserver-command=/etc/multiseat/scripts/Xephyr-seat
xserver-allow-tcp=false
xserver-pass-seat-name=true
greeter-pass-seat-id=true
greeter-hide-users=true
greeter-session=multiseat-greeter
user-session=lightdm-xsession
session-wrapper=/etc/X11/Xsession

[Seat:0]
xserver-command=X -br -dpms -s 0 -novtswitch
xserver-pass-seat-name=false
greeter-pass-seat-id=false
greeter-session=xinerama

[Seat:1]
[Seat:2]