Remove user list from Ubuntu 9.10 Karmic Koala login screenPosted: 28 February 2010
Problem: You want to login to your Ubuntu laptop without letting others shoulder surf your full name. You’d like to introduce yourself to them personally instead.
Solution: In a terminal (Applications -> Accessories -> Terminal), enter
sudo -u gdm gconftool-2 --set --type boolean /apps/gdm/simple-greeter/disable_user_list true
Type in your password when requested. You’re done.