[CentOS] Display configuration for greeter??

Sun Jan 25 02:57:26 UTC 2015
Robert Nichols <rnicholsNOSPAM at comcast.net>

With dual monitors, how do I control which monitor will get the greeter
display. I would really like to configure the screens as mirrored.  Trying
to log in when the monitor with the greeter is not visible is very trying.

-- 
Bob Nichols     "NOSPAM" is really part of my email address.
                 Do NOT delete it.