Want to change your login screen? It’s easy to do it via a GTK+ greeter for the default LightDM display manager in Ubuntu 16.04.
Using LightDM GTK+ greeter instead of the default Unity greeter allows users to theming Ubuntu login screen via GTK 3 themes, and icons. And there’s a simple graphical tool to configure all the settings.
To get started:
1. Launch Ubuntu Software, search for and install “lightdm gtk greeter settings” utility:
2. After installation, launch the utility, when it opens, do:
If you’ve installed them in local user folder, run below commands to mv to system themes folder:
sudo mv ~/.themes/* /usr/share/themes/; sudo chown -R root:root /usr/share/themes/
sudo mv ~/.icons/* /usr/share/icons/; sudo chown -R root:root /usr/share/icons/
- Select GTK+ theme, icon theme, font, background image, etc in Appearance tab.
- Adjust clock format, indicators in Panel tab.
- Adjust login box position, on-screen keyboard, reader, screen blank timeout, etc in the rest of tabs.
After all, restart your computer (first time only) to apply changes.
Restore the default Login Screen:
To restore the default Unity Greeter login screen, open terminal (Ctrl+Alt+T) and run the command:
sudo apt remove lightdm-gtk-greeter && sudo apt autoremove
The command removes GTK+ greeter, the configure utility, and restore your login screen to the previous state after reboot.
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