Ok!!source of the proble has been resolved on .(from here)
but when i installed the nVidia Driver and startx,the error still.
plz help me! the error same on BT4 R2 when i installed the nVidia driver.Code:X.Org X Server 1.7.6 Release Date: 2010-03-17 X Protocol Version 11, Revision 0 Build Operating System: Linux 2.6.24-27-server i686 Ubuntu Current Operating System: Linux bt 2.6.38 #1 SMP Thu Mar 17 20:52:18 EDT 2011 i686 Kernel command line: BOOT_IMAGE=/vmlinuz-2.6.38 root=UUID=9b996428-630d-47a2-b805-78f620b29332 ro text splash nomodeset vga=791 Build Date: 08 March 2011 08:22:50AM xorg-server 2:1.7.6-2ubuntu7.6 (For technical support please see http://www.ubuntu.com/support) Current version of pixman: 0.16.4 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.0.log", Time: Thu May 12 02:15:45 2011 (==) Using config file: "/etc/X11/xorg.conf" (==) Using config directory: "/usr/lib/X11/xorg.conf.d" (EE) No devices detected. Fatal server error: no screens found Please consult the The X.Org Foundation support at http://wiki.x.org for help. Please also check the log file at "/var/log/Xorg.0.log" for additional information. ddxSigGiveUp: Closing log giving up. xinit: No such file or directory (errno 2): unable to connect to X server xinit: No such process (errno 3): Server error.
there is my VGA:
Code:00:02.0 VGA compatible controller: Intel Corporation Sandy Bridge Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: nVidia Corporation Device 0df4 (rev a1)



