Dual Monitor problem using Ubuntu

norgaard · 07-12-2006, 08:17 AM

Hi. I have two monitors up and running with Ubuntu, but I am not able to move windows between them. (I can move the mouse cursor back and forth.) Below is my /etc/X11/xorg.conf. Does anyone know what is wrong? Btw, I am a complete novice to Linux.... Thanks.

# /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 /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/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/X11/fonts/misc"
FontPath "/usr/share/X11/fonts/cyrillic"
FontPath "/usr/share/X11/fonts/100dpi/:unscaled"
FontPath "/usr/share/X11/fonts/75dpi/:unscaled"
FontPath "/usr/share/X11/fonts/Type1"
FontPath "/usr/share/X11/fonts/100dpi"
FontPath "/usr/share/X11/fonts/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 "type1"
Load "vbe"
EndSection

Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "CoreKeyboard"
Option "XkbRules" "xorg"
Option "XkbModel" "pc104"
Option "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ExplorerPS/2"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "true"
EndSection

Section "InputDevice"
Driver "wacom"
Identifier "stylus"
Option "Device" "/dev/wacom" # Change to
# /dev/input/event
# for USB
Option "Type" "stylus"
Option "ForceDevice" "ISDV4" # Tablet PC ONLY
EndSection

Section "InputDevice"
Driver "wacom"
Identifier "eraser"
Option "Device" "/dev/wacom" # Change to
# /dev/input/event
# for USB
Option "Type" "eraser"
Option "ForceDevice" "ISDV4" # Tablet PC ONLY
EndSection

Section "InputDevice"
Driver "wacom"
Identifier "cursor"
Option "Device" "/dev/wacom" # Change to
# /dev/input/event
# for USB
Option "Type" "cursor"
Option "ForceDevice" "ISDV4" # Tablet PC ONLY
EndSection

Section "Device"
Identifier "Matrox Graphics, Inc. MGA G550 AGP - 1"
Driver "mga"
BusID "PCI:1:0:0"
Option "OldDmaInit" "True"
Screen 0
EndSection

Section "Device"
Identifier "Matrox Graphics, Inc. MGA G550 AGP - 2"
Driver "mga"
BusID "PCI:1:0:0"
Option "OldDmaInit" "True"
Screen 1
EndSection

Section "Monitor"
Identifier "DELL 1702FP - 1"
Option "DPMS"
EndSection

Section "Monitor"
Identifier "DELL 1702FP - 2"
Option "DPMS"
EndSection

Section "Screen"
Identifier "Default Screen1"
Device "Matrox Graphics, Inc. MGA G550 AGP - 1"
Monitor "DELL 1702FP - 1"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 4
Modes "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "1280x1024" "1024x768" "800x600" "720x400" "640x480"
EndSubSection
EndSection

Section "Screen"
Identifier "Default Screen2"
Device "Matrox Graphics, Inc. MGA G550 AGP - 2"
Monitor "DELL 1702FP - 2"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 4
Modes "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "1280x1024" "1024x768" "800x600" "720x400" "640x480"
EndSubSection
EndSection

Section "ServerLayout"
Identifier "Default Layout"
Screen "Default Screen1" 0 0
Screen "Default Screen2" RightOf "Default Screen1"
InputDevice "Generic Keyboard"
InputDevice "Configured Mouse"
InputDevice "stylus" "SendCoreEvents"
InputDevice "cursor" "SendCoreEvents"
InputDevice "eraser" "SendCoreEvents"
EndSection

Section "DRI"
Mode 0666
EndSection

Chromezero · 07-12-2006, 04:05 PM

I'm not real familiar with it, as I only have one monitor, but you may want to read up on Xinerama.

jaymoney · 07-13-2006, 06:09 PM

i wanted to know if you were ever able to fix this problem? i am having the same issues. let me know. thanks

jaymoney · 07-13-2006, 06:39 PM

ok so i added the following two lines to Server Layout and it extended the screen like i intended.

Option "Xinerama" "on"
Option "Clone" "off"

im sure this will help someone

norgaard · 07-17-2006, 04:21 AM

This worked - thanks!!!!