Disable external monitor

Discussion in 'iMac' started by asdf542, Nov 17, 2010.

  1. asdf542 macrumors 6502

    Joined:
    Oct 26, 2010
    #1
    I have an iMac that I keep connected to an LG HDTV via Mini-Displayport to HDMI. I was wondering if there was any way to disable the external monitor without unplugging it? Turning off the TV doesn't actually disable the monitor as I still have the OS thinking it's still on therefore spaces imitates it as being two monitors when its really only one. The main reason I want to disable it is to save my VRAM while I'm playing Source games on Steam.
     
  2. hawaiiken macrumors newbie

    Joined:
    Nov 22, 2013
    #3
    Tried SwitchResX, doesn't help. The only way is to unplug my Mini DisplayPort to HDMI adapter every time I want to turn off extended display. Wish Apple would provide a simple "Turn off extended display mode" menu option.
     

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