bonjour
je viens de récupérer un second écran et je souhaiterais l’activer sous debian mais voila je n’arrive pas à l’activer j’ai bien le check du bios sur le 2 éme écran mais une fois arriver à la séction login plus rien il clignote de tout les couleurs 
voici le xorg.conf
[code]# /etc/X11/xorg.conf (xorg X Window System server configuration file)
Section “Files”
FontPath “/usr/share/fonts/X11/misc”
FontPath “/usr/X11R6/lib/X11/fonts/misc”
FontPath “/usr/share/fonts/X11/cyrillic”
FontPath “/usr/X11R6/lib/X11/fonts/cyrillic”
FontPath “/usr/share/fonts/X11/100dpi/:unscaled”
FontPath “/usr/X11R6/lib/X11/fonts/100dpi/:unscaled”
FontPath “/usr/share/fonts/X11/75dpi/:unscaled”
FontPath “/usr/X11R6/lib/X11/fonts/75dpi/:unscaled”
FontPath “/usr/share/fonts/X11/Type1”
FontPath “/usr/X11R6/lib/X11/fonts/Type1”
FontPath “/usr/share/fonts/X11/100dpi”
FontPath “/usr/X11R6/lib/X11/fonts/100dpi”
FontPath “/usr/share/fonts/X11/75dpi”
FontPath “/usr/X11R6/lib/X11/fonts/75dpi”
# path to defoma fonts
FontPath “/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType”
EndSection
Section “Module”
Load “i2c”
Load “bitmap”
Load “ddc”
Load “dri”
Load “extmod”
Load “freetype”
Load “glx”
Load “int10”
Load “vbe”
EndSection
Section “InputDevice”
Identifier “Generic Keyboard”
Driver “kbd”#
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 /etc/X11/xorg.conf manual page.
(Type “man /etc/X11/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
Option "CoreKeyboard"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "fr"
Option "XkbVariant" "latin9"
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 “nVidia Corporation NV31 [GeForce FX 5600]”
Driver “nv”
BusID “PCI:1:0:0”
#il s’agit des 3 lignes que j ai rajouter
Option “HSync2” “65”
Option “VRefresh2” “60”
Option “Mode2” “1024x768”
EndSection
Section “Monitor”
Identifier “Écran générique”
Option “DPMS”
HorizSync 28-57
VertRefresh 43-60
EndSection
Section “Screen”
Identifier “Default Screen”
Device “nVidia Corporation NV31 [GeForce FX 5600]”
Monitor “Écran générique”
DefaultDepth 24
SubSection “Display”
Depth 1
Modes “1152x768” “1024x768” “800x600” “640x480”
EndSubSection
SubSection “Display”
Depth 4
Modes “1152x768” “1024x768” “800x600” “640x480”
EndSubSection
SubSection “Display”
Depth 8
Modes “1152x768” “1024x768” “800x600” “640x480”
EndSubSection
SubSection “Display”
Depth 15
Modes “1152x768” “1024x768” “800x600” “640x480”
EndSubSection
SubSection “Display”
Depth 16
Modes “1152x768” “1024x768” “800x600” “640x480”
EndSubSection
SubSection “Display”
Depth 24
Modes “1152x768” “1024x768” “800x600” “640x480”
EndSubSection
EndSection
Section “ServerLayout”
Identifier “Default Layout”
Screen “Default Screen”
InputDevice “Generic Keyboard”
InputDevice “Configured Mouse”
EndSection
Section “DRI”
Mode 0666
EndSection[/code]
merci de votre aide à tous 
