If you’ve recently downgraded Python on Ubuntu, you may have noticed that your GUI is not functioning properly. Specifically, the login screen may be corrupted or not loading at all, and you may not be able to log in or access your desktop. This is because the downgrade may have caused some dependencies to break, including the lightdm package that manages the display manager.
What is Lightdm ?
Lightdm is a display manager that manages the login screen and desktop environment for Ubuntu and other Linux distributions. It’s responsible for starting the X server, authenticating users, and loading the graphical user interface. If lightdm is not functioning properly, you may not be able to log in or access your desktop. Reinstalling lightdm is a simple and effective solution to fix these issues and restore your system’s GUI.
Downgrading Python can cause unexpected issues with your system, particularly with the graphical user interface (GUI). Specifically, the display manager known as lightdm may become corrupted, resulting in an unusable login screen and desktop environment.
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