On the contrary, the opposite setting is considered (and has been reported as
bug already [0][1]) undesireable by other, including myself.
Your setup would only work for local users whereas that option being set to
"true" would work for everyone.
[0] https://bugs.launchpad.net/lightdm/+bug/94404
It is provided in the example conf file, here:
/usr/share/doc/lightdm/lightdm.conf.gz
It's also settable via /usr/lib/lightdm-set-defaults which I'm working
on a manpage for currently.
** Changed in: lightdm (Ubuntu)
Importance: Undecided => Wishlist
** Changed in: lightdm (Ubuntu)
St
