Howto change the login screen with blur effect in elementary OS

This guide show you how to give you login screen a background taken from your wallpaper of your user with blur effect.

WARNING: It’s on experimental level and can be unstable, so use it at your own risk!

Preparation

First you need to install proper packages/libs -dev to use for building a new greeter. Open the terminal and copy/paste;

sudo apt install git libgdk-pixbuf2.0-dev libgranite-dev libgtk-3-dev liblightdm-gobject-1-dev libwingpanel-2.0-dev libx11-dev meson valac libmutter-2-dev

A lot of packages will now be install for compiling and building.

Downloading

This will download the source of the greeter;

cd && cd Downloads
git clone https://github.com/elementary/greeter.git

Compiling and Installation

Now to the compiling the source of the greeter and installation of it;

cd greeter
meson build --prefix=/usr
cd build
ninja
sudo ninja install

Now logout and see your new greeter.

Enjoy! ^_^

Tested on: elementary OS 5.1.4