[root@localhost ~]# Xorg :1 -configure

X.Org X Server 1.12.4
Release Date: 2012-08-27
X Protocol Version 11, Revision 0
Build Operating System:  2.6.32-358.2.1.el6.x86_64 
Current Operating System: Linux localhost.localdomain 3.8.13-100.fc17.x86_64 #1 SMP Mon May 13 13:36:17 UTC 2013 x86_64
Kernel command line: BOOT_IMAGE=/vmlinuz-3.8.13-100.fc17.x86_64 root=/dev/mapper/vg01-lv_root1 ro nomodeset rd.md=0 rd.lvm.lv=vg01/lv_swap SYSFONT=True KEYTABLE=us rd.lvm.lv=vg01/lv_root1 rd.luks=0 LANG=en_US.UTF-8 rd.dm=0 rhgb quiet
Build Date: 17 April 2013  04:53:23AM
Build ID: xorg-x11-server 1.12.4-7.fc17 
Current version of pixman: 0.28.0
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.1.log", Time: Thu Jun 20 05:24:24 2013
List of video drivers:
        dummy
        qxl
        cirrus
        mga
        radeon
        vmware
        intel
        ast
        openchrome
        ati
        nouveau
        fbdev
        vesa
(++) Using config file: "/root/xorg.conf.new"
(==) Using config directory: "/etc/X11/xorg.conf.d"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
Number of created screens does not match number of detected devices.
  Configuration failed.
Server terminated with error (2). Closing log file.