Attach 2nd display to notebook and clone image

[pinguin74]

Hello,

I have a notebook that does 1600x900 and has a G210M chip. I have attached a 2nd TFT to the VGA connector and it is a Samsung that can do 1680x1050.

What i would like to have is two *identical* desktops, one at the laptop at 1600x900 and the other on the 2nd external monitor at 1680x1050.

So, when I connect to the external monitor i always get the same desktop. I have played with the nVidia Xorg tool, but to no avail. I have no clue what it means to place the 2nd screen "above", "below", "right" or "left". I want to exactly clone my desktop...

What would be the syntax for xorg.conf? Or how could i do this with the Xorg nVidia tool ?

Ok, i was able to enable TwinView, but it is odd, I can see my desktop on the 2nd monitor, but when i start an application the app is been seen on the notebook... this is not what I want, I want an exact clone...

SOLVED I was now able to create a xorg.conf that does the job, see below. I created it with the nVidia tool. I can now plug in my external monitor, restart X and then have my desktop on the big monitor. Can unplug it again, restart X and then have my notebook desktop again.

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 1.0  (buildmeister@builder58)  Thu Apr 22 20:36:15 PDT 2010

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      "Samsung SyncMaster"
    HorizSync       30.0 - 81.0
    VertRefresh     56.0 - 75.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce G210M"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "1"
    Option         "TwinViewXineramaInfoOrder" "CRT-0"
    Option         "metamodes" "CRT: 1680x1050_60 +0+0, DFP: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection