[dual screen] 2 ecrans une carte graphique

Salut!! J'aurais besoin d'un peu d'aide!:D
Je suis sous Mandrake 10.2 LE2005 avec gnome 2.10.1 (mise en place à partir de garnome) mon pc possede une carte graphique Mediamax Ati Radeon 9600SE avec 2 sorties écrans, une dvi (ecran tft) et une standard (ecran crt)!
J'ai branché un adaptateur sur la sortie dvi pour avoir une sortie pour ecran crt, puis j'ai branché deux écrans crt! Maintenant sans rien toucher j'ai un clone (2ecrans affichant la meme chose).
Mais ce que je voudrais c'est avoir un dual c'est a dire que mes 2 ecrans ne forme qu'un seul bureau et que je puisse quand je dirige ma souris vers un bord de l'écran quel se retrouve dans l'autre écran! J'ai bien suivi le howto de xinerama:
http://xavier.serpaggi.free.fr/howto/Xinerama-HOWTO-fr.html
et pourtant ca ne fonctionne pas! J'ai surment oublier un détail ou fait un truc qui ne va pas! Je ne sais deja pas si mon pc utilise Xorg.conf ou XF86Config car je ne vois aucune différence lorsque je modifie ces fichiers!
Pour information X -version me donne cela:
@M8 ~]$ X -version

X Window System Version 6.8.2
Release Date: 9 February 2005
X Protocol Version 11, Revision 0, Release 6.8.2
Build Operating System: Linux 2.6.3-25mdk-i686-up-4GB i686 [ELF]
Current Operating System: Linux M8 2.6.8.1-10mdk #1 Wed Sep 8 17:00:52 CEST 2004 i686
Build Date: 02 May 2005
Before reporting problems, check http://wiki.X.Org
to make sure that you have the latest version.
Module Loader present

Je vous mets ensuite mon fichier XF86Config obtenu grâce à emacs /etc/X11/XF86Config:


Section "Module"

# This loads the DBE extension module.

Load "dbe" # Double buffer extension

# This loads the miscellaneous extensions module, and disables
# initialisation of the XFree86-DGA extension within that module.
SubSection "extmod"
Option "omit xfree86-dga" # don't initialise the DGA extension
EndSubSection

# This loads the Type1 and FreeType font modules
Load "type1"
Load "speedo"
Load "freetype"
# Load "xtt"

# This loads the GLX module
# Load "glx"
# This loads the DRI module
# Load "dri"

EndSection

# **********************************************************************
# Files section. This allows default font and rgb paths to be set
# **********************************************************************

Section "Files"

# 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.

RgbPath "/usr/X11R6/lib/X11/rgb"

# Multiple FontPath entries are allowed (which are concatenated together),
# as well as specifying multiple comma-separated entries in one FontPath
# command (or a combination of both methods)
#
# If you don't have a floating point coprocessor and emacs, Mosaic or other
# programs take long to start up, try moving the Type1 and Speedo directory
# to the end of this list (or comment them out).
#

# FontPath "/usr/X11R6/lib/X11/fonts/local/"
FontPath "/usr/X11R6/lib/X11/fonts/misc/"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
# FontPath "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/Speedo/"
FontPath "/usr/X11R6/lib/X11/fonts/Type1/"
# FontPath "/usr/X11R6/lib/X11/fonts/TrueType/"
# FontPath "/usr/X11R6/lib/X11/fonts/freefont/"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi/"
# FontPath "/usr/X11R6/lib/X11/fonts/100dpi/"

# The module search path. The default path is shown here.

# ModulePath "/usr/X11R6/lib/modules"

EndSection

# **********************************************************************
# Server flags section.
# **********************************************************************

Section "ServerFlags"

# Uncomment this to cause a core dump at the spot where a signal is
# received. This may leave the console in an unusable state, but may
# provide a better stack trace in the core dump to aid in debugging

# Option "NoTrapSignals"

# Uncomment this to disable the <Crtl><Alt><Fn> VT switch sequence
# (where n is 1 through 12). This allows clients to receive these key
# events.

# Option "DontVTSwitch"

# Uncomment this to disable the <Crtl><Alt><BS> server abort sequence
# This allows clients to receive this key event.

# Option "DontZap"

# Uncomment this to disable the <Crtl><Alt><KP_+>/<KP_-> mode switching
# sequences. This allows clients to receive these key events.

# Option "Dont Zoom"

# Uncomment this to disable tuning with the xvidtune client. With
# it the client can still run and fetch card and monitor attributes,
# but it will not be allowed to change them. If it tries it will
# receive a protocol error.

# Option "DisableVidModeExtension"

# Uncomment this to enable the use of a non-local xvidtune client.

# Option "AllowNonLocalXvidtune"

# Uncomment this to disable dynamically modifying the input device
# (mouse and keyboard) settings.

# Option "DisableModInDev"

# Uncomment this to enable the use of a non-local client to
# change the keyboard or mouse settings (currently only xset).

# Option "AllowNonLocalModInDev"

EndSection

# **********************************************************************
# Input devices
# **********************************************************************

# **********************************************************************
# Core keyboard's InputDevice section
# **********************************************************************

Section "InputDevice"

Identifier "Keyboard1"
Driver "keyboard"

# For most OSs the protocol can be omitted (it defaults to "Standard").
# When using XQUEUE (only for SVR3 and SVR4, but not Solaris),
# uncomment the following line.

# Option "Protocol" "Xqueue"

Option "AutoRepeat" "500 30"

# Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
# Option "Xleds" "1 2 3"

# Option "LeftAlt" "Meta"
# Option "RightAlt" "ModeShift"

# 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"

# These are the default XKB settings for XFree86
# Option "XkbRules" "xfree86"
# Option "XkbModel" "pc101"
# Option "XkbLayout" "us"
# Option "XkbVariant" ""
# Option "XkbOptions" ""

# Option "XkbDisable"

Option "XkbRules" "xfree86"
Option "XkbModel" "pc105"
Option "XkbLayout" "fr"

EndSection


# **********************************************************************
# Core Pointer's InputDevice section
# **********************************************************************

Section "InputDevice"

# Identifier and driver

Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "PS/2"
Option "Device" "/dev/mouse"

# Mouse-speed setting for PS/2 mouse.

# Option "Resolution" "256"

# When using XQUEUE, comment out the above two lines, and uncomment
# the following line.

# Option "Protocol" "Xqueue"

# Baudrate and SampleRate are only for some Logitech mice. In
# almost every case these lines should be omitted.

# Option "BaudRate" "9600"
# Option "SampleRate" "150"

# Emulate3Buttons is an option for 2-button Microsoft mice
# Emulate3Timeout is the timeout in milliseconds (default is 50ms)

# Option "Emulate3Buttons"
# Option "Emulate3Timeout" "50"

# ChordMiddle is an option for some 3-button Logitech mice

# Option "ChordMiddle"

EndSection


# **********************************************************************
# Other input device sections
# this is optional and is required only if you
# are using extended input devices. This is for example only. Refer
# to the XF86Config man page for a description of the options.
# **********************************************************************
#
# Section "InputDevice"
# Identifier "Mouse2"
# Driver "mouse"
# Option "Protocol" "MouseMan"
# Option "Device" "/dev/mouse2"
# EndSection
#
# Section "InputDevice"
# Identifier "spaceball"
# Driver "magellan"
# Option "Device" "/dev/cua0"
# EndSection
#
# Section "InputDevice"
# Identifier "spaceball2"
# Driver "spaceorb"
# Option "Device" "/dev/cua0"
# EndSection
#
# Section "InputDevice"
# Identifier "touchscreen0"
# Driver "microtouch"
# Option "Device" "/dev/ttyS0"
# Option "MinX" "1412"
# Option "MaxX" "15184"
# Option "MinY" "15372"
# Option "MaxY" "1230"
# Option "ScreenNumber" "0"
# Option "ReportingMode" "Scaled"
# Option "ButtonNumber" "1"
# Option "SendCoreEvents"
# EndSection
#
# Section "InputDevice"
# Identifier "touchscreen1"
# Driver "elo2300"
# Option "Device" "/dev/ttyS0"
# Option "MinX" "231"
# Option "MaxX" "3868"
# Option "MinY" "3858"
# Option "MaxY" "272"
# Option "ScreenNumber" "0"
# Option "ReportingMode" "Scaled"
# Option "ButtonThreshold" "17"
# Option "ButtonNumber" "1"
# Option "SendCoreEvents"
# EndSection

# **********************************************************************
# Monitor section
# **********************************************************************

# Any number of monitor sections may be present

Section "Monitor"

Identifier "Hyundai"

# HorizSync is in kHz unless units are specified.
# HorizSync may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

HorizSync 31.5 - 57.0

# HorizSync 30-64 # multisync
# HorizSync 31.5, 35.2 # multiple fixed sync frequencies
# HorizSync 15-25, 30-50 # multiple ranges of sync frequencies

# VertRefresh is in Hz unless units are specified.
# VertRefresh may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

VertRefresh 50-100

EndSection

Section "Monitor"

Identifier "Dell"

HorizSync 31.5 - 57.0

VertRefresh 50-90

EndSection

# **********************************************************************
# Graphics device section
# **********************************************************************

# Any number of graphics device sections may be present

# Standard VGA Device:

Section "Device"
Identifier "Standard VGA"
VendorName "Unknown"
BoardName "Unknown"

# The chipset line is optional in most cases. It can be used to override
# the driver's chipset detection, and should not normally be specified.

# Chipset "generic"

# The Driver line must be present. When using run-time loadable driver
# modules, this line instructs the server to load the specified driver
# module. Even when not using loadable driver modules, this line
# indicates which driver should interpret the information in this section.

Driver "vga"
# The BusID line is used to specify which of possibly multiple devices
# this section is intended for. When this line isn't present, a device
# section can only match up with the primary video device. For PCI
# devices a line like the following could be used. This line should not
# normally be included unless there is more than one video device
# intalled.

# BusID "PCI:0:10:0"

# VideoRam 256

# Clocks 25.2 28.3

EndSection

# Device configured by xf86config:

Section "Device"
Identifier "ATI"
Driver "vesa"
#VideoRam 131072
# Insert Clocks lines here if appropriate
EndSection


# **********************************************************************
# Screen sections
# **********************************************************************

# Any number of screen sections may be present. Each describes
# the configuration of a single screen. A single specific screen section
# may be specified from the X server command line with the "-screen"
# option.
Section "Screen"
Identifier "Screen 1"
Device "ATI"
Monitor "Hyundai"
DefaultDepth 16

Subsection "Display"
Depth 8
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "1024x768"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection

Option "TwinView" "true"
Option "SecondMonitorHorizSync" "30.0-65.0"
Option "SecondMonitorVertRefresh" "50.0-70.0"
Option "MetaModes" "1024x768, 1024x768; 640x480, NULL"
Option "TwinViewOrientation" "RightOf"
Option "ConnectedMonitor" "crt,crt"
EndSection

Section "Screen"
Identifier "Screen 2"
Device "ATI"
Monitor "Dell"
DefaultDepth 16

Subsection "Display"
Depth 8
Modes "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Option "TwinView" "true"
Option "SecondMonitorHorizSync" "30.0-65.0"
Option "SecondMonitorVertRefresh" "50.0-70.0"
Option "MetaModes" "1024x768, 1024x768; 640x480, NULL"
Option "TwinViewOrientation" "RightOf"
Option "ConnectedMonitor" "crt,crt"
EndSection

# **********************************************************************
# ServerLayout sections.
# **********************************************************************

# Any number of ServerLayout sections may be present. Each describes
# the way multiple screens are organised. A specific ServerLayout
# section may be specified from the X server command line with the
# "-layout" option. In the absence of this, the first section is used.
# When now ServerLayout section is present, the first Screen section
# is used alone.

Section "ServerLayout"

# The Identifier line must be present
Identifier "Simple Layout"

# Each Screen line specifies a Screen section name, and optionally
# the relative position of other screens. The four names after
# primary screen name are the screens to the top, bottom, left and right
# of the primary screen. In this example, screen 2 is located to the
# right of screen 1.

Screen "Screen 1"
Screen "Screen 2"
Screen "Screen 1" Rightof "Screen 2"

# Each InputDevice line specifies an InputDevice section name and
# optionally some options to specify the way the device is to be
# used. Those options include "CorePointer", "CoreKeyboard" and
# "SendCoreEvents".

InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"

EndSection

# Section "DRI"
# Mode 0666
# EndSection

Alors voila si vous voyez un truc qui va pas faites le moi savoir!
Je veux bien poster mon XF86Config de depart enfin avant qu'il soit modifié pour le dual et je veux bien aussi poster mon Xorg.conf si c'est celui la que mon poste utilise!
Si vous voulez plus d'infos n'hesitez pa!!
merci d'avance!
Alex