lightdm-qt5-greeter-ccs-api is a simple frontend for the lightdm displaymanager, written in c++ and qt5.

It has it's roots in the razor project, where it was developed under the name razor-lightdm-greeter. When razor was merged into LXQt it was renamed to lxqt-lightdm-greeter.

As of september 2015 I have renamed it to qt-lightdm-greeter and cut it's ties to LXQt. This was primarily because LXQt recommends SDDM as its displaymanager and because the application had very little integration with LXQt.

qt-lightdm-greeter sports a razor-qt logo as a reminder of it's origin.

This project is based on https://github.com/mrbrainsample/lightdm-qt5-greeter but has the following changes:

• It allows downloading background images
• It cleans up the config a bit
• It adds support for hiding the login form until an input chain is pressed
• It can watch a ICPC CCS contest API URL to determine when to auto login a user

Make sure you have cmake, gcc, qt5 and liblightdm-qt5 (and lightdm) installed on your system

Do

git clone https://github.com/surlykke/lightdm-qt5-greeter.git
cd lightdm-qt5-greeter
mkdir build
cd build
cmake ..
make 
sudo make install

Update or insert in(to) your /etc/lightdm/lightdm.conf, in the SeatDefaults section, this line:

greeter-session=lightdm-qt5-greeter

The file /etc/lightdm/lightdm-qt5-greeter.conf allows for a few configurations of lightdm-qt5-greeter (background-image, positioning of loginform). The configuration options are documented in that file.