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  1. #1


    Member Since
    Jan 12, 2014
    Posts
    3
    Use iMac monitor as security monitor
    I am trying to connect my 2011 IMAC to my ADT Security DVR to use for monitoring security cameras. I used the mini display port vga connector to connect to the external DVR. However I am not getting any video from the DVR. They IMAC only starts switching around different display resolutions.

    Any suggestions on how to accomplish this would be much appreciated

  2. #2

    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
    Posts
    26,465
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '14 1.8 i7 8GB 10.11; 21" iMac '13 2.9 i5 8GB 10.11; 6S
    What iMac and what connection are you using?
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  3. #3


    Member Since
    Jan 12, 2014
    Posts
    3
    Imac 2011 27 inch, Intel Core i3

    OS X 10.8.5 (12F45)

    Connection: mini-display port from iMac to VGA port on Security DVR

  4. #4

    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
    Posts
    26,465
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '14 1.8 i7 8GB 10.11; 21" iMac '13 2.9 i5 8GB 10.11; 6S
    You are trying to go "from" the VGA port "to" the mdp on the iMac.

    You will need to find a converter to convert VGA to a displayport signal.
    I'm not aware of anyone making such a converter.

    The mdp to VGA adapters you can find everywhere will not work - they are one way - displayport "to" VGA adapters.

    You might start here - link.

    The easiest and cheapest way is going to be buying an el cheapo VGA compatible monitor.

    edit:
    (Also, the only Core i3 in a 27" would be the mid 2010 model - sold thru beginning of May '11.)
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  5. #5


    Member Since
    Jan 12, 2014
    Posts
    3
    Thanks, it looks like the monitor is the way to go.
    Correct on the Core i3.

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