Bonjour à tous   ,
Voilà ça fait plusieurs jours que je me penche sur un problème qui va me rendre chèvre   .
Sous Mandriva2006, j'essaie en vain de configurer mon système pour avoir un affichage sur deux écrans.
J'ai une carte NVIDIA NVS 285. J'ai bien installer le dernier driver la version 8756.
Lors du démarrage, les deux écrans affichent normalement jusqu'au lancement de Mandriva, à ce moment là, il n'y a plus qu'un écran   .
J'ai tout testé, j'ai bidouillé dans le fichier XF86config, pas de résultat attendu.
Voici mon XF86config :
 
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"
    #DontZap # disable <Crtl><Alt><BS> (server abort)
    #DontZoom # disable <Crtl><Alt><KP_+>/<KP_-> (resolution switching)
    AllowMouseOpenFail # allows the server to start up even if the mouse doesn't work
    #Option "Xinerama"
EndSection
 
Section "Module"
    Load "dbe" # Double-Buffering Extension
    Load "v4l" # Video for Linux
    Load "extmod"
    Load "type1"
    Load "freetype"
    Load "/usr/X11R6/lib/modules/extensions/libglx.a"
    Load "/usr/X11R6/lib/modules/extensions/nvidia/libglx.so"
EndSection
 
Section "InputDevice"
    Identifier "Keyboard1"
    Driver "keyboard"
    Option "XkbModel" "pc105"
    Option "XkbLayout" "fr"
    Option "XkbOptions" ""
EndSection
 
Section "InputDevice"
    Identifier "Mouse1"
    Driver "mouse"
    Option "Protocol" "ExplorerPS/2"
    Option "Device" "/dev/mouse"
    Option "ZAxisMapping" "4 5"
EndSection
 
Section "Monitor"
    Identifier "monitor1"
    VendorName "Generic"
    ModelName "1280x1024 @ 76 Hz"
    HorizSync 31.5-82
    VertRefresh 50-90
EndSection
 
Section "Device"
    Identifier "device1"
    VendorName "nVidia Corporation"
    BoardName "NVIDIA GeForce FX (generic)"
    Driver "nvidia"
    Option "DPMS"
    Option "IgnoreEDID" "1"
EndSection
 
Section "Screen"
    Identifier "screen1"
    Device "device1"
    Monitor "monitor1"
    DefaultColorDepth 24
     
    Subsection "Display"
        Depth 8
        Virtual 1280 1024
    EndSubsection
     
    Subsection "Display"
        Depth 15
        Virtual 1280 1024
    EndSubsection
     
    Subsection "Display"
        Depth 16
        Virtual 1280 1024
    EndSubsection
     
    Subsection "Display"
        Depth 24
        Virtual 1280 1024
    EndSubsection
EndSection
 
Section "ServerLayout"
    Identifier "layout1"
    InputDevice "Keyboard1" "CoreKeyboard"
    InputDevice "Mouse1" "CorePointer"
    Screen "screen1"
EndSection
 
S'il vous plait aider moi !!!  

As-tu regardé le README Nvidia ? (dans /usr/doc/share/NVIDIA-GLX/)

 Oui, je suis en train de lire et de bidouiller....mais toujours rien  

ben tu lui déclare un seul moniteur, il va pas imaginer tout seul qu'il y en a 2 de branchés.
 
faudrait aussi activer le twinview

Y a un tutorial Gentoo très bien fait sur le TwinView http://gentoo-wiki.com/HOWTO_Dual_Monitors

   Youpi j'ai enfin réussi !!!    
Merci à tous !!!
Voici mon fichier xorg.conf :
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"
    #DontZap # disable <Crtl><Alt><BS> (server abort)
    #DontZoom # disable <Crtl><Alt><KP_+>/<KP_-> (resolution switching)
    AllowMouseOpenFail # allows the server to start up even if the mouse does not work
EndSection
 
Section "Module"
    Load "dbe" # Double-Buffering Extension
    Load "v4l" # Video for Linux
    Load "extmod"
    Load "type1"
    Load "freetype"
    Load "/usr/X11R6/lib/modules/extensions/nvidia/libglx.so"
EndSection
 
Section "InputDevice"
    Identifier "Keyboard1"
    Driver "keyboard"
    Option "XkbModel" "pc105"
    Option "XkbLayout" "fr"
    Option "XkbOptions" "compose:rwin"
EndSection
 
Section "InputDevice"
    Identifier "Mouse1"
    Driver "mouse"
    Option "Protocol" "ExplorerPS/2"
    Option "Device" "/dev/mouse"
    Option "ZAxisMapping" "6 7"
EndSection
 
Section "Monitor"
    Identifier "monitor1"
    VendorName "Generic"
    ModelName "1280x1024 @ 76 Hz"
    HorizSync 31.5-82
    VertRefresh 50-90
     
    # 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
 
Section "Monitor"
    Identifier "monitor2"
    VendorName "Generic"
    ModelName "1280x1024 @ 60 Hz"
    HorizSync 31.5-82
    VertRefresh 50-90
     
    # 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
 
Section "Device"
    Identifier "device1"
    VendorName "nVidia Corporation"
    BoardName "NVIDIA GeForce FX (generic)"
    Driver "nvidia"
    Option "DPMS"
    Option "MetaModes" "1280x1024,1280x1024"
    Option "TwinView"
    Option "TwinViewOrientation" "RightOf"
EndSection
 
Section "Device"
    Identifier "device2"
    VendorName "nVidia Corporation"
    BoardName "NVIDIA GeForce FX (generic)"
    Driver "nvidia"
    Option "DPMS"
EndSection
 
Section "Screen"
    Identifier "screen1"
    Device "device1"
    Monitor "monitor1"
    DefaultColorDepth 16
     
    Subsection "Display"
        Depth 8
        Modes "1280x1024"
    EndSubsection
     
    Subsection "Display"
        Depth 15
        Modes "1280x1024"
    EndSubsection
     
    Subsection "Display"
        Depth 16
        Modes "1280x1024"
    EndSubsection
     
    Subsection "Display"
        Depth 24
        Modes "1280x1024"
    EndSubsection
EndSection
 
Section "Screen"
    Identifier "screen2"
    Device "device2"
    Monitor "monitor2"
    DefaultColorDepth 16
     
    Subsection "Display"
        Depth 8
        Modes "1280x1024"
    EndSubsection
     
    Subsection "Display"
        Depth 15
        Modes "1280x1024"
    EndSubsection
     
    Subsection "Display"
        Depth 16
        Modes "1280x1024"
    EndSubsection
     
    Subsection "Display"
        Depth 24
        Modes "1280x1024"
    EndSubsection
EndSection
 
Section "ServerLayout"
    Identifier "layout1"
    InputDevice "Keyboard1" "CoreKeyboard"
    InputDevice "Mouse1" "CorePointer"
    Screen "screen1"
    Screen "screen2" RightOf "screen1"
EndSection
 
A+