Home page:

https://github.com/CanonicalLtd/lightdm

Build and base setup is taken from:

http://linuxfromscratch.org/blfs/view/svn/x/lightdm.html

Notes:

- lightdm must be installed to build greeters

- gdm now means GraphicalDisplayManger

- Final installation:

      install a greeter (slick-greeter)

      Tell the system to use lightdm instead of
      gdm after the next reboot

      #> systemctl disable gdm
      #> systemctl enable lightdm

- Test w/o reboot

      #> systemctl disable gdm --now
      #> systemctl enable lightdm --now

      Play with the config under /etc/lightdm or not

      Mind the usual commands

      #> systemctl restart lightdm
      #> systemctl daemon-reload
      #> systemctl restart systemd-logind

Lightdm is enabled per host by providing the 'lightdm' tag in our
hostconfig.

Installation steps on distmaster:

 - install updated gdm.service (see mariux64/mxtools)
 - bee install lightdm-1.26.0-0.x86_64 (surprise:)
 - systemctl enable lightdm

Conditions and installation tested on sigstkflt, sigill & sigint.