Je te l' avais mis un peu plus haut tu l' as sans doute pas vu :
Section "Device"
Identifier "ATI Technologies Inc RV350 AP [Radeon 9600]"
Driver "ati"
BusID "PCI:1:0:0"
EndSection
Si ce n' est pas ça que tu voulait voila le contenu du fichier :
[/# 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"
Option "XkbVariant" "oss"
EndSection
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/2"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "true"
EndSection
Section "InputDevice"
Driver "wacom"
Identifier "stylus"
Option "Device" "/dev/input/wacom"
Option "Type" "stylus"
Option "ForceDevice" "ISDV4" # Tablet PC ONLY
EndSection
Section "InputDevice"
Driver "wacom"
Identifier "eraser"
Option "Device" "/dev/input/wacom"
Option "Type" "eraser"
Option "ForceDevice" "ISDV4" # Tablet PC ONLY
EndSection
Section "InputDevice"
Driver "wacom"
Identifier "cursor"
Option "Device" "/dev/input/wacom"
Option "Type" "cursor"
Option "ForceDevice" "ISDV4" # Tablet PC ONLY
EndSection
Section "Device"
Identifier "ATI Technologies Inc RV350 AP [Radeon 9600]"
Driver "ati"
BusID "PCI:1:0:0"
EndSection
Section "Monitor"
Identifier "Q773"
Option "DPMS"
EndSection
Section "Screen"
Identifier "Default Screen"
Device "ATI Technologies Inc RV350 AP [Radeon 9600]"
Monitor "Q773"
DefaultDepth 24
SubSection "Display"
Modes "1280x1024" "1024x768" "800x600" "640x480"
EndSubSection
EndSection
Section "ServerLayout"
Identifier "Default Layout"
Screen "Default Screen"
InputDevice "Generic Keyboard"
InputDevice "Configured Mouse"
# Uncomment if you have a wacom tablet
# InputDevice "stylus" "SendCoreEvents"
# InputDevice "cursor" "SendCoreEvents"
# InputDevice "eraser" "SendCoreEvents"
EndSectioncode]
Glxinfo :
alex@alex-desktop:~$ glxinfo
name of display: :0.0
Xlib: extension "ATIFGLRXDRI" missing on display ":0.0".
Error: couldn't find RGB GLX visual
visual x bf lv rg d st colorbuffer ax dp st accumbuffer ms cav
id dep cl sp sz l ci b ro r g b a bf th cl r g b a ns b eat
----------------------------------------------------------------------
0x23 24 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x24 24 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x25 24 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x26 24 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x27 24 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x28 24 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x29 24 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x2a 24 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x2b 24 dc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x2c 24 dc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x2d 24 dc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x2e 24 dc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x2f 24 dc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x30 24 dc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x31 24 dc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x32 24 dc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
0x73 32 tc 1 0 0 c . . 0 0 0 0 0 0 0 0 0 0 0 0 0 None
Voila