startx -- :2 (same screen)

techmik@techmik-acer:~$ sudo startx -- :2


X.Org X Server 1.10.1
Release Date: 2011-04-15
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-29-server x86_64 Ubuntu
Current Operating System: Linux techmik-acer 2.6.39-0-generic #5~20110427-Ubuntu SMP Wed Apr 27 15:27:41 UTC 2011 x86_64
Kernel command line: BOOT_IMAGE=/vmlinuz-2.6.39-0-generic root=UUID=4c455c94-b978-4fff-b6d8-4061e00de997 ro crashkernel=384M-2G:64M,2G-:128M radeon.modeset=1
Build Date: 21 May 2011  11:48:41AM
xorg-server 2:1.10.1-1ubuntu1.1 (For technical support please see http://www.ubuntu.com/support)
Current version of pixman: 0.20.2
	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.2.log", Time: Fri Jul  1 22:08:13 2011
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(II) [KMS] Kernel modesetting enabled.
(EE) Failed to initialize GLX extension (Compatible NVIDIA X driver not found)