Alejandro's instructions did not restore Unity for me.
But to make the process easier for those that want to try, here they are in an easy to copy & paste format:
sudo apt install lightdm sudo dpkg-reconfigure lightdm sudo systemctl enable lightdm.service sudo reboot
Alejandro's instructions did not restore Unity for me.
But to make the process easier for those that want to try, here they are in an easy to copy & paste format:
sudo apt install lightdm
sudo dpkg-reconfigure lightdm
sudo systemctl enable lightdm.service
sudo reboot