Weird switch between login managers
Initially I started out with Gnome's GDM as my login manager and was entirely happy with it. I've used the KDE login manager before and was glad that when I installed Linux I had Gnome's GDM be my default. I've been using Gnome's GDM login for nearly a month now. Then suddenly I rebooted today and it switched to the KDE login manager and I don't know how to switch it back. Today when I first turned on my laptop and logged in, I was using Gnome's GDM login manager but after reboot it switched to KDE's login manager. I think there's a way to switch this back because its not supposed to be doing this. What file would I need to go configure to have Gnome's GDM be my login manager once again?