cf viewtopic.php?f=8&t=14682
penses à regarder dans le truc et astuce si ta solution n’existe pas à l’avenir 
si ce n’est déjà fait, installes xserver-xorg xfonts-base xinit
Le xorg.conf n’existe plus mais si ça ne fonctionne pas c’est qu’il va falloir l’aider car les paramètres par défaut ne sont pas ceux qui conviennent.
Donc dans ce cas: on le recréé 
Si tu n’as plus celui qui fonctionnait bien, c’est pas bien 
Mais t’as de la chance car le T&A te le donne aussi :
[code]# xorg.conf (X.Org 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 "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option “XkbRules” "xorg"
Option “XkbModel” "pc105"
Option “XkbLayout” "fr"
Option “XkbVariant” "latin9"
Option “XkbOptions” "lv3:ralt_switch"
EndSection
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
EndSection
Section "Device"
Identifier "Configured Video Device"
Option “EnablePageFlip” "on"
Option “AccelMethod” "XAA"
Option “MigrationHeuristic” "greedy"
Option “AccelDFS” "true"
Option “DynamicClocks” "on"
Option “ColorTiling” "on"
Option “FBTexPercent” "95"
Option “XAANoOffscreenPixmaps” "true"
Option “AddARGBGLXVisuals” "true"
Option “Tiling” "false"
EndSection
Section "Monitor"
Identifier "Configured Monitor"
Option "DPMS"
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
EndSection
Section "DRI"
Mode 0666
EndSection
Section "Extensions"
Option “Composite” "Enable"
EndSection[/code]
C’est pas beau Debian-fr.org ?
Allez, ciao, bon Noel.
