Debian Serveur X Error

Bonjour,

Je viens de découvrir le monde de linux (je me suis installé une debian 6).
J'ai mis à jours mon pilote graphique (nvidia) et depuis mon serveur x ne veut plus se lancer.
Il m'affiche une erreur :
(EE) No devices detected.

Fatal server error:
no screens found

Voici mon fichier /var/log/Xorg.0.log



X.Org X Server 1.7.7
Release Date: 2010-05-04
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.32.29-dsa-ia32 i686 Debian
Current Operating System: Linux biscuit 2.6.32-5-686 #1 SMP Tue Mar 8 21:36:00 UTC 2011 i686
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.32-5-686 root=UUID=63df3ab4-3e4c-463e-a1a3-396c1ae20b30 ro quiet
Build Date: 19 February 2011 02:37:36PM
xorg-server 2:1.7.7-13 (Cyril Brulebois <kibi@debian.org>)
Current version of pixman: 0.16.4
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: Sun May 1 15:50:13 2011
(==) Using config file: "/etc/X11/xorg.conf"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(==) ServerLayout "Layout0"
(**) |-->Screen "Screen0" (0)
(**) | |-->Monitor "Monitor0"
(**) | |-->Device "Device0"
(**) |-->Input Device "Keyboard0"
(**) |-->Input Device "Mouse0"
(==) Automatically adding devices
(==) Automatically enabling devices
(WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
Entry deleted from font path.
(==) 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,
/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType,
built-ins
(==) ModulePath set to "/usr/lib/xorg/modules"
(WW) AllowEmptyInput is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
(WW) Disabling Keyboard0
(WW) Disabling Mouse0
(II) Loader magic: 0x81ecca0
(II) Module ABI versions:
X.Org ANSI C Emulation: 0.4
X.Org Video Driver: 6.0
X.Org XInput driver : 7.0
X.Org Server Extension : 2.0
(--) using VT number 8

(--) PCI:*(0:0:2:0) 8086:0116:1028:050e Intel Corporation Sandy Bridge Integrated Graphics Controller rev 9, Mem @ 0xf1400000/4194304, 0xe0000000/268435456, I/O @ 0x00004000/64
(--) PCI: (0:1:0:0) 10de:0df4:1028:050e nVidia Corporation rev 161, Mem @ 0xf0000000/16777216, 0xc0000000/268435456, 0xd0000000/33554432, I/O @ 0x00003000/128, BIOS @ 0x????????/524288
(II) Open ACPI successful (/var/run/acpid.socket)
(II) LoadModule: "extmod"
(II) Loading /usr/lib/xorg/modules/extensions/libextmod.so
(II) Module extmod: vendor="X.Org Foundation"
compiled for 1.7.7, module version = 1.0.0
Module class: X.Org Server Extension
ABI class: X.Org Server Extension, version 2.0
(II) Loading extension SELinux
(II) Loading extension MIT-SCREEN-SAVER
(II) Loading extension XFree86-VidModeExtension
(II) Loading extension XFree86-DGA
(II) Loading extension DPMS
(II) Loading extension XVideo
(II) Loading extension XVideo-MotionCompensation
(II) Loading extension X-Resource
(II) LoadModule: "dbe"
(II) Loading /usr/lib/xorg/modules/extensions/libdbe.so
(II) Module dbe: vendor="X.Org Foundation"
compiled for 1.7.7, module version = 1.0.0
Module class: X.Org Server Extension
ABI class: X.Org Server Extension, version 2.0
(II) Loading extension DOUBLE-BUFFER
(II) LoadModule: "glx"
(II) Loading /usr/lib/xorg/modules/extensions/libglx.so
(II) Module glx: vendor="NVIDIA Corporation"
compiled for 4.0.2, module version = 1.0.0
Module class: X.Org Server Extension
(II) NVIDIA GLX Module 195.36.31 Tue Jun 1 23:22:44 PDT 2010
(II) Loading extension GLX
(II) LoadModule: "record"
(II) Loading /usr/lib/xorg/modules/extensions/librecord.so
(II) Module record: vendor="X.Org Foundation"
compiled for 1.7.7, module version = 1.13.0
Module class: X.Org Server Extension
ABI class: X.Org Server Extension, version 2.0
(II) Loading extension RECORD
(II) LoadModule: "dri"
(II) Loading /usr/lib/xorg/modules/extensions/libdri.so
(II) Module dri: vendor="X.Org Foundation"
compiled for 1.7.7, module version = 1.0.0
ABI class: X.Org Server Extension, version 2.0
(II) Loading extension XFree86-DRI
(II) LoadModule: "dri2"
(II) Loading /usr/lib/xorg/modules/extensions/libdri2.so
(II) Module dri2: vendor="X.Org Foundation"
compiled for 1.7.7, module version = 1.1.0
ABI class: X.Org Server Extension, version 2.0
(II) Loading extension DRI2
(II) LoadModule: "nvidia"
(II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
(II) Module nvidia: vendor="NVIDIA Corporation"
compiled for 4.0.2, module version = 1.0.0
Module class: X.Org Video Driver
(II) NVIDIA dlloader X Driver 195.36.31 Tue Jun 1 22:21:58 PDT 2010
(II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
(II) Primary Device is: PCI 00@00:02:0
(EE) No devices detected.

Fatal server error:
no screens found

Please consult the The X.Org Foundation support
at https://www.x.org/wiki/
for help.
Please also check the log file at "/var/log/Xorg.0.log" for additional information.



Je pense que le problème vient du fait que j'ai 2 cartes graphiques et qu'il charge la Intel au lieu de la Nvidia.


Merci pour votre aide.

PS: j'ai installé mes pilotes nvidia via le module-assistant ^^