Install Interface Graphique Linux

Bonjour à tous et a toutes .
Je vous présente mon problème.
Je viens de réinstallé un Serveur tout propre sous Ubuntu.
Quand j'essaye d'installé l'interface graphique tout marche super bien .
apt-get install ubuntu-desktop
apt-get install xorg
apt-get install gdm gnome-core xfonts-base xserver-xor
Au moment de lancer startx erreur ( sa ne marche pas . )
J'ai réinstallé sous Debian 8 pareil même erreur .

Voila la command startx

root@vps232460:~# startx

X.Org X Server 1.16.4
Release Date: 2014-12-20
X Protocol Version 11, Revision 0
Build Operating System: Linux 3.16.0-4-amd64 x86_64 Debian
Current Operating System: Linux vps232460 2.6.32-openvz-042stab113.11-amd64 #1 SMP Fri Dec 18 17:40:41 MSK 2015 x86_64
Kernel command line: quiet
Build Date: 11 February 2015 12:32:02AM
xorg-server 2:1.16.4-1 (https://www.debian.org/support
Current version of pixman: 0.32.6
Before reporting problems, check https://www.x.org/wiki/
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: Wed Sep 7 07:12:21 2016
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(EE)
Fatal server error:
(EE) xf86OpenConsole: Cannot find a free VT: Invalid argument
(EE)
(EE)
Please consult the The X.Org Foundation support
at https://www.x.org/wiki/
for help.
(EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
(EE)
(EE) Server terminated with error (1). Closing log file.
xinit: giving up
xinit: unable to connect to X server: Connection refused
xinit: server error
Couldn't get a file descriptor referring to the console

…

Voila le fichier de log : ( /var/log/Xorg.0.log )

[ 28874.452] Kernel command line: quiet
[ 28874.452] Build Date: 11 February 2015 12:32:02AM
[ 28874.452] xorg-server 2:1.16.4-1 (https://www.debian.org/support
[ 28874.452] Current version of pixman: 0.32.6
[ 28874.452] Before reporting problems, check https://www.x.org/wiki/
to make sure that you have the latest version.
[ 28874.452] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
28874.452 Log file: "/var/log/Xorg.0.log", Time: Wed Sep 7 07:12:21 2016
28874.452 Using system config directory "/usr/share/X11/xorg.conf.d"
28874.454 No Layout section. Using the first Screen section.
28874.454 No screen section available. Using defaults.
28874.454 |-->Screen "Default Screen Section" (0)
28874.454 | |-->Monitor ""
28874.455 No monitor specified for screen "Default Screen Section".
Using a default monitor configuration.
28874.455 Automatically adding devices
28874.455 Automatically enabling devices
28874.455 Automatically adding GPU devices
28874.455 The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[ 28874.455] Entry deleted from font path.
28874.455 FontPath set to:
/usr/share/fonts/X11/misc,
/usr/share/fonts/X11/100dpi/:unscaled,
/usr/share/fonts/X11/75dpi/:unscaled,
/usr/share/fonts/X11/Type1,
/usr/share/fonts/X11/100dpi,
/usr/share/fonts/X11/75dpi,
built-ins

.

Je vous remercie d'avance .
Cordialement ServerDbprod