Here is my xorg.conf:
$ cat /etc/X11/xorg.conf
# xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
# sudo dpkg-reconfigure -phigh xserver-xorg
Section "Files"
EndSection
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "CoreKeyboard"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "fr"
EndSection
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/2"
Option "Emulate3Buttons" "true"
EndSection
Section "Device"
Identifier "Carte video generique"
Driver "nvidia"
BusID "PCI:2:0:0"
EndSection
Section "Monitor"
Identifier "�cran g�n�rique"
Option "DPMS"
HorizSync 30-70
VertRefresh 50-160
EndSection
Section "Screen"
Identifier "Default Screen"
Device "Carte video generique"
Monitor "�cran g�n�rique"
DefaultDepth 24
SubSection "Display"
Modes "1280x1024" "1280x960" "1280x854" "1280x800" "1280x768" "1200x800"
"1152x864" "1152x768" "1024x768" "800x600" "640x480"
EndSubSection
EndSection
Section "ServerLayout"
Identifier "Default Layout"
Screen "Default Screen"
InputDevice "Generic Keyboard"
InputDevice "Configured Mouse"
EndSection
----
About versions:
ii nvidia-glx 169.09-1 NVIDIA binary Xorg driver
ii xserver-xorg-core 2:1.4.1~git20080131-1 Xorg X server - core server
ii xorg 1:7.3+10 X.Org X Window System
ii xserver-xorg 1:7.3+10
I have not do anything about "composite", but nvidia drivers might be in
cause...
;)