Description:

If you want to use the X Window System, you should install X11R6-contrib. This
package holds many useful programs from the X Window System, version 11,
release 6 contrib tape. The programs, contributed by various users, include
listres, xbiff, xedit, xeyes, xcalc, xload and xman, among others.

you will also need to install the XFree86 package, the XFree86 package which
corresponds to your video card, one or more of the XFree86 fonts packages, the
Xconfigurator package and the XFree86-libs package.

Finally, if you are going to develop applications that run as X clients, you
will also need to install XFree86-devel.