How do I switch back to GDM and have it launch at boot?

Question

So I got rid of Lightdm but how do I get GDM to launch at default. It hangs on "checking battery state" this is in virtual box if that matters. I want GDM login to load by default instead of me starting it manually.

Answer 1

You probably need to reconfigure GDM.

To do that, switch to a tty. Ctrl+Alt+1

Login as your user, then run the following:

sudo dpkg-reconfigure gdm

Select GDM instead of lightdm, then you can do a reboot (sudo reboot in the ttyy) and you're good to go.