localhost ~ # X -config /root/xorg.conf.new

X Window System Version 7.1.1
Release Date: 12 May 2006
X Protocol Version 11, Revision 0, Release 7.1.1
Build Operating System: Linux 2.6.17-gentoo-r7 x86_64
Current Operating System: Linux localhost 2.6.17-gentoo-r8 #2 SMP Fri Nov 3 15:10:20 CET 2006 x86_64
Build Date: 03 November 2006
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Module Loader present
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.0.log", Time: Fri Nov  3 16:09:31 2006
(++) Using config file: "/root/xorg.conf.new"
(EE) xf86OpenSerial: Cannot open device /dev/mouse
        No such file or directory.
(EE) Mouse0: cannot open input device
(EE) PreInit failed for input device "Mouse0"
    xkb_keycodes             { include "xfree86+aliases(qwerty)" };
    xkb_types                { include "complete" };
    xkb_compatibility        { include "complete" };
    xkb_symbols              { include "pc(pc105)+us" };
    xkb_geometry             { include "pc(pc105)" };
No core pointer

Fatal server error:
failed to initialize core devices
localhost ~ #