In lightdm.conf you can set the X server command, e.g.
[SeatDefaults] xserver-command=X -do-something-interesting
All options are shown here: /usr/share/doc/lightdm/lightdm.conf
In lightdm.conf you can set the X server command, e.g.
[SeatDefaults] interesting
xserver-command=X -do-something-
All options are shown here: doc/lightdm/ lightdm. conf
/usr/share/