setup fait partie du paquetage setuptool qui se définit comme suit:
A text mode system configuration tool.
Setuptool is a user-friendly text mode menu utility which allows you
to access all of the text mode configuration programs included in the
Red Hat Linux operating system.
You should install the setuptool package because you will find
yourself using its features for essential system administration.
Il ne requiert aucune composante du serveur X.
System-config-display, par contre, suppose Xorg.
