<code>sudo dpkg-reconfigure gdm</code> This worked.
<code>sudo stop lightdm</code> This crashed i3 and left me with a black screen on the X display. <code>sudo start gdm</code> I had to do Ctrl+Alt+F1 to do this command. GDM started successfully. GNOME does not start. Entering login information still returns me to the login screen. -- Caleb Herbert OpenPGP public key: http://bluehome.net/csh/pubkey