There’s nothing wrong with the default brownish “Human” Ubuntu login screen, but sometimes your brain might get bored with the same login screen overtime. So in this post I’ll be showing you how to randomize the GDM login screen through these simple steps :
From Desktop, go to System->Administration->Login Window
Choose “Random from Selected” from the selector in the Login Window dialog. And check all the GDM themes that you wish to be cycled each start up.
That’s it! close the dialog and logout from your GNOME session, it should display random login screens each time when you switch on your computer.
Need more themes?
You can always find and install more cool themes from Gnome Looks !