How to: Change the login screen in Ubuntu 9.10 a.k.a. Karmic
Changing the login screen of ubuntu 9.10 is somewhat different and complicated compared to other versions of ubuntu. But still we can change it the way we need it to behave. For this we will have to do some steps. Let me explain those steps here.
1. Logout of your current session and return to the GDM
2. Switch to the tty command line prompt using Ctrl-Alt-F1
3. Login using your normal login/password
4. at the command line prompt type: export DISPLAY=:0.0
5. then type: sudo -u gdm gnome-control-center
6. Switch back to the gdm screen using CTRL+ALT-F7
7. The gnome-control-center should be loaded. Use it to configure your GDM.
8. Click on the Appearances icon, in appearances you can change your GDM’s font, theme and background image.
9. Close the gnome-control-center and login normally.
These are the steps. Here in the gnome control center you can lot more than just changing the login screen.
Have any doubts? feel free to ask in comments.
credit:Ubuntu Mini

