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root@mazgalici:~# startx

X.Org X Server 1.7.6
Release Date: 2010-03-17
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-28-server i686 Ubuntu
Current Operating System: Linux mazgalici 2.6.18-194.26.1.el5.028stab079.2PAE #1 SMP Fri Dec 17 19:34:22 MSK 2010 i686
Kernel command line: quiet
Build Date: 10 November 2010  11:25:26AM
xorg-server 2:1.7.6-2ubuntu7.4 (For technical support please see )
Current version of pixman: 0.16.4
        Before reporting problems, check 
        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: Tue Jan 11 01:28:48 2011
(==) Using config directory: "/usr/lib/X11/xorg.conf.d"

Fatal server error:
xf86OpenConsole: Cannot open /dev/tty0 (No such file or directory)

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
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closed as too localized by Tom O'Connor, dunxd, sysadmin1138 Feb 21 '13 at 20:50

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Well, what does ls -l /dev/tty0 tell you? –  Dennis Williamson Jan 11 '11 at 1:04
crw-rw---- 1 root dialout 4, 0 2011-01-08 21:32 /dev/tty0 –  mazgalici Jan 11 '11 at 8:40

1 Answer 1

Do you have a modem connected to this machine? Not sure why it would have group dialout. That's odd. What is the contents of /var/log/Xorg.0.log? Try running:

 startx -- :1

Also, what terminal is your user running on? Run a 'who' to see if anyone else is using /dev/tty0. Or better yet an lsof on it.

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