ubuntu 11.04 配置双显示器

http://blog.csdn.net/jiabangok/article/details/6619064

/etc/x11/xorg.conf

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 270.29  (buildd@roseapple)  Fri Feb 25 14:43:24 UTC 2011




Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"
EndSection


Section "Files"
EndSection


Section "InputDevice"


    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection


Section "InputDevice"


    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection


Section "Monitor"


    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "DELL E170S"
    HorizSync       30.0 - 81.0
    VertRefresh     56.0 - 76.0
    Option         "DPMS"
EndSection


Section "Device"
    Option "TwinView" "on"
    Option "MetaModes" "1280x1024,1280x1024"
    Option "SecondMonitorHorizSync" "28-80"
    Option "SecondMonitorVertRefresh" "43-60"
    Option "TwinViewOrientation" "RightOf"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 9300 GS"
EndSection


Section "Screen"


# Removed Option "TwinViewXineramaInfoOrder" "CRT-1"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "1"
    Option         "TwinViewXineramaInfoOrder" "CRT-0"
    Option         "metamodes" "CRT-0: nvidia-auto-select +0+0, CRT-1: nvidia-auto-select +1280+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

关键是：
在Device 段，加入如下内容：

Option "TwinView" "on"
Option "MetaModes" "1280x1024,1280x768"
Option "SecondMonitorHorizSync" "28-80"
Option "SecondMonitorVertRefresh" "43-60"
Option "TwinViewOrientation" "RightOf"




配置好后执行如下的命令：
按alt + ctrl + f1 ，切换文本工作区
执行：

sudo /etc/init.d/gdm stop
sudo /etc/init.d/gdm start