Disable the user list

You can disable the user list shown on the login screen by setting the org.gnome.login-screen.disable-user-list GSettings key.

When the user list is disabled, users need to type their user name and password at the prompt to log in.

Set the org.gnome.login-screen.disable-user-list key

  1. Create the gdm profile which contains the following lines:

    /etc/dconf/profile/gdm

    user-db:user
system-db:gdm
file-db:/usr/share/gdm/greeter-dconf-defaults

    gdm is the name of a dconf database.

  2. Create a gdm keyfile for machine-wide settings in /etc/dconf/db/gdm.d/00-login-screen:

    [org/gnome/login-screen]
# Do not show the user list
disable-user-list=true

  3. Update the system databases:

    # dconf update