Dual Monitor Main Monitor Issue


New Member
I have the dual monitor thing working and everything. I have my laptop and attached it using HDMI to a HDTV. The problem is that i cant get my desktop to my laptop. The HDMI cable, when plugged into my laptop makes the TV display the desktop automatically. Because of this, when i enable the dual screen, it extends my desktop to my laptop screen, and uses my tv for the main monitor. Does anyone know how to fix this?

My Computer


Magister mundi sum!
Vista Guru
There's a nice guide here

My Computer

System One

  • Manufacturer/Model
    Apple MacBook, 5,1
    Intel Core 2 Duo 2.4Ghz
    4GB DDR3
    Graphics Card(s)
    Nvidia 9400m
    Monitor(s) Displays
    13.3" Apple MacBook LCD Screen + 22" HannsG DVI LCD + 21.5" Samsung USB Lapfit Monitor LD220
    Screen Resolution
    1280x800 + 1920x1080 + 1920x1080
    Hard Drives
    SATA Internal 2.5" 500GB (305GB HFS+, 195GB NTFS)
    External USB 3.5" 1TB (HFS+)
    Aluminium Unibody
    Apple Magic Mouse
    Apple Late 2009 Wireless Keyboard (US)
    Internet Speed
    6.33Mb/s up. 0.36Mb/s down.
    Other Info
    Harman Kardon Soundsticks II Speakers