I am using Ubuntu 12.04 Gnome 2D. I want to install different desktop environments for different users, there are only 3 different users, 2 of them are in soders list with NOPASSWD I want one user ...
I am having trouble changing my login screen background. I can select the default wallpaper, the Kde-default one, but whenever I select my own custom wallpaper, there is no image, just a solid color. ...