XFree86 or Another X11?

The X Window System used with most Linux distributions, including Red Hat's, is the collection of programs from The XFree86 Project, Inc.. The version of X11 included with Red Hat Linux is XFree86 4.0.19, and is based on X11R6.4, or X11, revision 6.4.

Note

You can verify the version of XFree86 in use, even during an X session, by using the -version command-line option with the XFree86 command like this:

							# XFree86 -version
XFree86 Version 4.0.1 / X Window System
(protocol Version 11, revision 0, vendor release 6400)
Release Date: 2 August 2000
        If the server is older than 6-12 months, or if your card is newer
        than the above date, look for a newer version before reporting
        problems.  (see http://www.XFree86.Org/FAQ) Operating ...

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