Is it possible to change the DPI of the greeter? I have a new laptop with a 1080p screen and all of the fonts/menus are too small. I can change the scaling setting for my user account but there doesn't seem to be a way to change the scaling globally or for the greeter.
First of all, every response I've read says to edit /etc/lightdm/lightdm.conf which does not exist. The folder /etc/lightdm/lightdm.conf.d/ does exist but is empty. I have tried e.g. creating a file in that folder '50-unity-greeter.conf' with the lines:
but there is no effect. I have also tried installing lightdm-gtk-greeter-settings which does have a DPI setting, but this forces my greeter into a drop-down menu mode which I do not like (I want to keep the default Unity greeter).