Скачать или смотреть Fixing a broken Pop!_OS Install after NVIDIA driver update (Easier than you might think!)

More information about this issue: https://support.system76.com/articles...

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Reinstall NVIDIA Driver

If your system is equipped with NVIDIA graphics, a recent update might be causing the login issues. (Usually, NVIDIA driver issues will prevent the login screen from loading at all; however, it's still worth reinstalling if you are unable to log in after the above steps.) Run these commands to determine if your system has NVIDIA graphics:

lspci -v | grep VGA

To remove the NVIDIA driver, run the following:

sudo apt purge ~nnvidia
sudo apt autoremove
sudo apt clean

After the NVIDIA driver has been removed, add it back using the following commands:

sudo apt update
sudo apt full-upgrade
sudo apt install system76-driver-nvidia

After the installation has completed, type sudo systemctl reboot and try logging in again.

sudo systemctl reboot