Pb bi-écran sous Mandrake !

Bonjour,

Je possède un dualhead une nvidia Geforce ainsi que 2 moniteurs plats de marque identiques.
Mon objectif est l'utilisation des 2 écrans et non en mode clone.

Après quelques docs dénichées sur le Net, et après quelques réflexions sur mon XF86Config-4...j'obtiens uniquement un écran sur 2 qui fonctionne sous X.

sinon en mode texte, j'ai des clones !!!

voici mon XF86Config-4 :

# File generated by XFdrake.
# modified 11octobre2005 by Ixus_zone

# **********************************************************************
# Refer to the XF86Config man page for details about the format of
# this file.
# **********************************************************************

Section "Files"
# Multiple FontPath entries are allowed (they are concatenated together)
# By default, Mandrake 6.0 and later now use a font server independent of
# the X server to render fonts.
FontPath "unix/:-1"
EndSection

Section "ServerFlags"
#DontZoom # disable <KP_+>/<KP_-> (resolution switching)
#DontZap # disable (server abort)
AllowMouseOpenFail # allows the server to start up even if the mouse doesn't work
EndSection

Section "Module"
Load "dbe" # Double-Buffering Extension
Load "v4l" # Video for Linux
Load "extmod"
Load "type1"
Load "freetype"
Load "glx" # 3D layer
EndSection

Section "InputDevice"
Identifier "Keyboard1"
Driver "Keyboard"
Option "XkbModel" "pc105"
Option "XkbLayout" "fr"
Option "XkbOptions" ""
EndSection

Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/psaux"
Option "ZAxisMapping" "4 5"
EndSection

#1er moniteur

Section "Monitor"
Identifier "monitor1"
VendorName "Plug'n Play"
ModelName "Dell 2000FP (Digital)"
HorizSync 31-80
VertRefresh 56-76

# Sony Vaio C1(X,XS,VE,VN)?
# 1024x480 @ 85.6 Hz, 48 kHz hsync
ModeLine "1024x480" 65.00 1024 1032 1176 1344 480 488 494 563 -hsync -vsync

# TV fullscreen mode or DVD fullscreen output.
# 768x576 @ 79 Hz, 50 kHz hsync
ModeLine "768x576" 50.00 768 832 846 1000 576 590 595 630

# 768x576 @ 100 Hz, 61.6 kHz hsync
ModeLine "768x576" 63.07 768 800 960 1024 576 578 590 616
EndSection

#2eme moniteur

Section "Monitor"
Identifier "monitor2"
VendorName "Plug'n Play"
ModelName "Dell 2000FP (Digital)"
HorizSync 31-80
VertRefresh 56-76

# Sony Vaio C1(X,XS,VE,VN)?
# 1024x480 @ 85.6 Hz, 48 kHz hsync
# ModeLine "1024x480" 65.00 1024 1032 1176 1344 480 488 494 563 -hsync -vsync

# TV fullscreen mode or DVD fullscreen output.
# 768x576 @ 79 Hz, 50 kHz hsync
# ModeLine "768x576" 50.00 768 832 846 1000 576 590 595 630

# 768x576 @ 100 Hz, 61.6 kHz hsync
# ModeLine "768x576" 63.07 768 800 960 1024 576 578 590 616
EndSection

#premier busid

Section "Device"
Identifier "device1"
VendorName "NVidia"
BoardName "NVIDIA GeForce FX (generic)"
Driver "nvidia"
Option "DPMS"
Option "TwinViewOrientation" "Below"
Option "NoLogo" "1"
Option "MetaModes" "1920x1440, 1600x1200; 1600x1200,1280x1024; 800x600, 800x600"
#Option "MetaModes" "1024x768, 1024x768"
Option "ConnectedMonitor" "CRT, CRT"
Option "SecondMonitorVertRefresh" "56-76"
Option "SecondMonitorHorizSync" "31-80"
Option "TwinView" "true"
Option "IgnoreDisplayDevices" "DFP, TV"
Option "IgnoreEDID" "1"
BusID "1:0:0"
EndSection

#screen haut

Section "Screen"
Identifier "screen1"
Device "device1"
Monitor "monitor1"
DefaultColorDepth 24

Subsection "Display"
Depth 8
Virtual 1600 1200
EndSubsection

Subsection "Display"
Depth 15
Virtual 1600 1200
EndSubsection

Subsection "Display"
Depth 16
Virtual 1600 1200
EndSubsection

Subsection "Display"
Depth 24
Virtual 1600 1200
EndSubsection
EndSection

Section "ServerLayout"
Identifier "layout1"
Screen "screen1"
#Screen "screen" Below "screen"
InputDevice "Keyboard1" "CoreKeyboard"
InputDevice "Mouse1" "CorePointer"
EndSection

#Section "ServerFlags"
#Option "xinerama" "on"
#EndSection

J'ai décommenter mon xinerama et cela ne fonctionne pas ???

quelqu'un a une idée ???

ps : pour info : 1 écran est branché sur un port vga et l'autre via un adaptateur sur un port DVI

Merci pour votre aide