Voilà donc :
# Xorg configuration created by system-config-display
Section "ServerLayout"
Identifier "Default Layout"
Screen 0 "aticonfig-Screen[0]" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
# RgbPath is the location of the RGB database. Note, this is the name of the
# file minus the extension (like ".txt" or ".db"). There is normally
# no need to change the default.
# Multiple FontPath entries are allowed (they are concatenated together)
# By default, Red Hat 6.0 and later now use a font server independent of
# the X server to render fonts.
RgbPath "/usr/X11R6/lib/X11/rgb"
FontPath "unix/:7100"
EndSection
Section "Module"
Load "dbe"
Load "extmod"
Load "fbdevhw"
Load "glx"
Load "record"
Load "freetype"
Load "type1"
Load "dri"
EndSection
Section "InputDevice"
# Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
# Option "Xleds" "1 2 3"
# To disable the XKEYBOARD extension, uncomment XkbDisable.
# Option "XkbDisable"
# To customise the XKB settings to suit your keyboard, modify the
# lines below (which are the defaults). For example, for a non-U.S.
# keyboard, you will probably want to use:
# Option "XkbModel" "pc102"
# If you have a US Microsoft Natural keyboard, you can use:
# Option "XkbModel" "microsoft"
#
# Then to change the language, change the Layout setting.
# For example, a german layout can be obtained with:
# Option "XkbLayout" "de"
# or:
# Option "XkbLayout" "de"
# Option "XkbVariant" "nodeadkeys"
#
# If you'd like to switch the positions of your capslock and
# control keys, use:
# Option "XkbOptions" "ctrl:swapcaps"
# Or if you just want both to be control, use:
# Option "XkbOptions" "ctrl:nocaps"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "yes"
EndSection
Section "Monitor"
Identifier "aticonfig-Monitor[0]"
ModelName "Dell M770"
DisplaySize 300 230
HorizSync 30.0 - 69.0
VertRefresh 48.0 - 160.0
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection
Section "Device"
########ATI DRIVERS CONFIGURATION##########
# === Backingstore ===
# === OpenGL specific profiles/settings ===
Identifier "aticonfig-Device[0]"
Driver "fglrx"
VendorName "Videocard vendor"
BoardName "ATI Technologies Inc RV530 [Radeon X1600 PRO/500Mhz 512Mo DDR2 400Mhz]"
# Option "backingstore" "true"
# === Accélération Dri ===
Option "no_accel" "no"
Option "no_dri" "no"
# === misc DRI settings ===
Option "mtrr" "no" # disable DRI mtrr mapper, driver #has its own code for mtrr
Option "ScreenOverlap" "0"
Option "Capabilities" "0x00000000"
Option "CapabilitiesEx" "0x00000000"
# === Video Overlay for the Xv extension ===
Option "VideoOverlay" "off"
# === OpenGL Overlay for the OpenGL extension ===
Option "OpenGLOverlay" "off"
# === Center Mode (Laptops only) ===
# Option "CenterMode" "off"
# === Pseudo Color Visuals (8-bit visuals) ===
Option "PseudoColorVisuals" "on"
# === QBS Management ===
Option "Stereo" "off"
Option "StereoSyncEnable" "1"
# === FSAA Management ===
Option "FSAAEnable" "on"
Option "FSAAScale" "1"
Option "FSAADisableGamma" "no"
Option "FSAACustomizeMSPos" "no"
Option "FSAAMSPosX0" "0.000000"
Option "FSAAMSPosY0" "0.000000"
Option "FSAAMSPosX1" "0.000000"
Option "FSAAMSPosY1" "0.000000"
Option "FSAAMSPosX2" "0.000000"
Option "FSAAMSPosY2" "0.000000"
Option "FSAAMSPosX3" "0.000000"
Option "FSAAMSPosY3" "0.000000"
Option "FSAAMSPosX4" "0.000000"
Option "FSAAMSPosY4" "0.000000"
Option "FSAAMSPosX5" "0.000000"
Option "FSAAMSPosY5" "0.000000"
# === Misc Options ===
Option "UseFastTLS" "on"
# Option "BlockSignalsOnLock" "on"
Option "ForceGenericCPU" "off"
# Option "KernelModuleParm" "locked-userpages=0"
Option "ForceMonitors" "crt1,notv"
Option "DesktopSetup" "single"
EndSection
Section "Screen"
Identifier "aticonfig-Screen[0]"
Device "aticonfig-Device[0]"
Monitor "aticonfig-Monitor[0]"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1024x768" "800x600" "640x480"
EndSubSection
EndSection
Section "DRI"
Group 0
Mode 0666
EndSection
ça a été copié sur un modèle vu ici, qui ne fonctionnait pas, puis modifié, sans plus de résultat.