16.04: Graphical login/desktop vanished? (coming closer)

[Ralf Mardorf]

On Mon, 25 Jul 2016 16:15:07 -0400, Paul Smith wrote:
>Alternatively you could try to create a "dummy network-manager" package
>which provided network-manager but didn't install anything, then pin
>it.  Or something like that.

"/lib/systemd/system/NetworkManager-dispatcher.service
/lib/systemd/system/NetworkManager-wait-online.service
/lib/systemd/system/NetworkManager.service
/lib/systemd/system/network-manager.service" -
http://packages.ubuntu.com/xenial/amd64/network-manager/filelist

Run
  sudo -i
  systemctl stop <name_of_the_unit>
  systemctl disable <name_of_the_unit>
that's it.

stop     stops it, if it's running
disable  disables a unit to not start during startup

Regards,
Ralf