J'ai suivi une partie de ce tuto et il y a une drôle de magie qui s'opère sur mon pc !
je m'explique :
déjà voila ma config :
2 écrans 20" 1680x1050 (un dell et un phillips -> donc des syncro verticales et horizontales différentes)
une ATI X1950XT
j'avais suivi le tuto xinerama, mais forcément je perdais l'accélération 3D et le curseur de la souris avait quelques problèmes quand il passait sur le 2ème écran (le curseur disparaissait...etc).
J'ai essayé la modif du xorg.conf proposé ici (j'avais mon vieux xorg.conf propre dans un coin, je n'ai rajouté que les 2 options au driver fglrx) et ...
MAGIE : j'ai mon bureau étendu avec l'option xinerama ! (résol : 3360x1050)
Je peux déplacer une fenêtre d'un écran à l'autre sans problème, j'ai l'accélération 3D, plus de problèmes de curseur de souris... mais rien n'est renseigné dans mon xorg.conf par rapport au 2e écran !!!
J'ai rédémarré mon pc (histoire qu'il n'y ait pas de configuration fantôme chargé en mémoire), et ca marche toujours !
voici mon xorg.xonf :
# /etc/X11/xorg.conf (xorg 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(5) 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 "Files"
Fontpath "/usr/share/fonts/X11/misc"
Fontpath "/usr/share/fonts/X11/cyrillic"
Fontpath "/usr/share/fonts/X11/100dpi/:unscaled"
Fontpath "/usr/share/fonts/X11/75dpi/:unscaled"
Fontpath "/usr/share/fonts/X11/Type1"
Fontpath "/usr/share/fonts/X11/100dpi"
Fontpath "/usr/share/fonts/X11/75dpi"
# path to defoma fonts
Fontpath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection
Section "Module"
Load "i2c"
Load "bitmap"
Load "ddc"
Load "dri"
Load "extmod"
Load "freetype"
Load "glx"
Load "int10"
Load "vbe"
EndSection
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "CoreKeyboard"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "fr"
Option "XkbVariant" "oss"
EndSection
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/2"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "true"
EndSection
Section "InputDevice"
Driver "wacom"
Identifier "stylus"
Option "Device" "/dev/input/wacom"
Option "Type" "stylus"
Option "ForceDevice" "ISDV4"# Tablet PC ONLY
EndSection
Section "InputDevice"
Driver "wacom"
Identifier "eraser"
Option "Device" "/dev/input/wacom"
Option "Type" "eraser"
Option "ForceDevice" "ISDV4"# Tablet PC ONLY
EndSection
Section "InputDevice"
Driver "wacom"
Identifier "cursor"
Option "Device" "/dev/input/wacom"
Option "Type" "cursor"
Option "ForceDevice" "ISDV4"# Tablet PC ONLY
EndSection
Section "Device"
Identifier "Generic Video Card"
Driver "fglrx"
Option "DesktopSetup" "horizontal"
Option "CenterMode" "off"
Busid "PCI:1:0:0"
EndSection
Section "Monitor"
Identifier "Philips 200W"
Option "DPMS"
EndSection
Section "Screen"
Identifier "Default Screen"
Device "Generic Video Card"
Monitor "Philips 200W"
Defaultdepth 24
SubSection "Display"
Depth 1
Modes "1680x1050" "1600x1200" "1440x1440" "1280x1024" "1280x960" "1280x800" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 4
Modes "1680x1050" "1600x1200" "1440x1440" "1280x1024" "1280x960" "1280x800" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1680x1050" "1600x1200" "1440x1440" "1280x1024" "1280x960" "1280x800" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "1680x1050" "1600x1200" "1440x1440" "1280x1024" "1280x960" "1280x800" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1680x1050" "1600x1200" "1440x1440" "1280x1024" "1280x960" "1280x800" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "1680x1050" "1600x1200" "1440x1440" "1280x1024" "1280x960" "1280x800" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
EndSection
Section "ServerLayout"
Identifier "Default Layout"
screen "Default Screen"
Inputdevice "Generic Keyboard"
Inputdevice "Configured Mouse"
Inputdevice "stylus" "SendCoreEvents"
Inputdevice "cursor" "SendCoreEvents"
Inputdevice "eraser" "SendCoreEvents"
EndSection
Section "DRI"
Mode 0666
EndSection
Section "Extensions"
Option "Composite" "0"
EndSection
Si quelqu'un a un début d'explication, j'aimerais comprendre !