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Disable an External Monitor?

7893 Views 8 Replies Latest reply: Mar 25, 2013 10:22 AM by ernstfromhaarlem RSS
Tracy E Level 1 Level 1 (125 points)
Currently Being Moderated
Jul 17, 2011 9:34 AM

I am looking for a way to disable a second monitor (plugged into the Display Port of a late 2010 iMac 27") without unplugging it. Does anyone know of a software solution?

 

When I am working I like that second monitor for desktop space, but other times (watching Netflix for example) the second monitor taxes the video card to much and degrades video playback performance. It would be great to have a software switch to ignore the second monitor. Right now, the only way I have found to do this is to unplug the display port cable.

  • captfred Level 7 Level 7 (26,225 points)
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    Jul 17, 2011 9:37 AM (in response to Tracy E)

    Best to just turn the second monitor off with the power switch.

     

    Regards,

    Captfred

  • captfred Level 7 Level 7 (26,225 points)
    Currently Being Moderated
    Jul 17, 2011 9:47 AM (in response to Tracy E)

    Interesting, same behavior with mine.   Although it still appears in system preferences, it knows it's not present as my menubar switches to the other screen.

  • X423424X Level 6 Level 6 (14,190 points)
    Currently Being Moderated
    Jul 17, 2011 12:37 PM (in response to Tracy E)

    SwitchResX is precisely made for this.  Indeed it is the only OS X software I've seen made for just these kind of problems.  I use it to enable/disable my TV when I want to watch movies.  I highly recommend it.

  • X423424X Level 6 Level 6 (14,190 points)
    Currently Being Moderated
    Jul 17, 2011 1:59 PM (in response to Tracy E)

    Yes, and if you notice in that picture, that SwitchResX has a provision to execute an applescript along with the switching.  I took advantage of that to allow me to move my audio between my mac and tv and also change the cursor size (hard to see that little bugger on the tv 7 feet away unless you make it bigger).

     

    It also allows you to move the menu bar (see main display) which I needed in a display set to move on to the tv since one site I use only supports full screen display on the screen containing the menu bar. 

     

    All-in-all a very nice utility.

  • ernstfromhaarlem Calculating status...
    Currently Being Moderated
    Mar 25, 2013 10:22 AM (in response to X423424X)

    Searching for a lot of time.. very nice !!! Thanks

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