This project is one of many greeters for LightDM.
LightDM configuration is provided by the following files:
/usr/share/lightdm/lightdm.conf.d/*.conf
/etc/lightdm/lightdm.conf.d/*.conf
/etc/lightdm/lightdm.conf
LightDM KDE Greeter uses lightdm-kde-greeter.conf for its configuration.
System provided configuration should be stored in
/usr/share/lightdm/lightdm.conf.d/. System administrators can override this
configuration by adding files to /etc/lightdm/lightdm.conf.d/ and
/etc/lightdm/lightdm.conf. Files are read in the above order and combined
together to make the LightDM configuration.
Thus, to enable lightdm-kde-greeter as the current lightdm greeter, you can
make a file /etc/lightdm/lightdm.conf.d/50-myconfig.conf with the following:
[Seat:*]
greeter-session=lightdm-kde-greeter
For most installations you will want to change the keys in the [Seat:*]
section as this applies to all seats on the system (normally just one). A
configuration file showing all the possible keys is provided in
data/lightdm.conf.
This repository also contains the KDE configuration module, to configure greeter parameters via GUI. Once installed it should be accessible via System Settings -> Startup and Shutdown -> Login Screen (LightDM).