I installed Ubuntu Studio 13.10 from a minimal CD, and then upgraded to 14.04. But since the cd install, I have been trying to change from gdm to lightdm. I have tried
sudo dpkg-reconfigure gdm,
sudo dpkg-reconfigure lightdm, reinstalling lightdm, but none of this works for me. Any idea?
I am not allowed to post an answer right now, so here it is if someone needs it before I can write a real one.
Ok, I found the answer on this thread: Is it possible to use the 'unity-greeter' for LightDM on Xubuntu 11.10?
Turns out lightDM was activated, but the interface looked different. The greeter I had was called
lightdm-gtk-greeter and the one I was used to
unity-greeter. So all I had to do was to change the file