GDM can do that, even without explicit support from Xfce (IIRC). I don't have GDM installed, but I remember there was a command that spawned a new X server with a new greeter window.
GDM can do that, even without explicit support from Xfce (IIRC). I don't have GDM installed, but I remember there was a command that spawned a new X server with a new greeter window.