Upscale 1080p content to 1920x1200 for 24 ACD

Discussion in 'Mac Accessories' started by .chris., Apr 7, 2015.

  1. .chris., Apr 7, 2015
    Last edited: Apr 7, 2015

    .chris. macrumors newbie

    Joined:
    May 12, 2009
    #1
    Hi everybody,

    As I am not really using my 24" Cinema Display right now, I am thinking about hooking it up to a 3rd Gen Apple TV. I already own an active converter that allows me to connect HDMI sources to the MiniDP-equipped ACD:
    (http://www.amazon.com/Kanex-HDMI-Mini-Displayport-Converter/dp/B003LGOWNQ)

    Since the maximum output of the Apple TV is 1920x1080 and the 24 ACD will only accept input at 1920x1200 (or a few other incompatible resolutions) I was wondering if any of you knew some kind of a workaround?

    My ideas so far:
    1) Using an active "scaler" that converts 1920x1080 content to 1920x1200, essentially adding black bars at the top and the bottom - but the ones I can find online are almost as expensive as a new TV
    2) Getting my hands on a firmware update for the ACD that adds 1920x1080 to its EDID. But: Even if there were such a thing as an unofficial firmware update, I am not a fan of the idea

    Anyone got a better idea? I realize I could simply buy a regular TV and have the solution right there, but I was hoping to be able to repurpose the ACD.

    Thank you!
     
  2. winkosmosis macrumors member

    Joined:
    Oct 20, 2012
    Location:
    Hawaii
    #2
    Have you tried it? I'm guessing the screen will just show the 1920x1080 image centered with black bars
     
  3. Dandu macrumors regular

    Joined:
    Jan 23, 2009
    #3
    If you find a solution, i'm interested, i have the same problem with a old Cinema Display (with 1600x1024 definition)
     
  4. .chris. thread starter macrumors newbie

    Joined:
    May 12, 2009
    #4
    Thanks for the responses.

    I used SwitchResX to force my Mac to output a 1080p signal - you are right, the ACD displays the content in a letterboxed format with black bars. Great!

    This looks promising; I will go ahead an order an Apple TV. I will report back once it has arrived.
     
  5. Dandu macrumors regular

    Joined:
    Jan 23, 2009
    #5
    It's not a good idea.

    If you force with a Mac, i think you use the scaler of the graphic card.

    When you send 1920 x 1 080 with SwitchResx, the Graphic send a 1920x1200 image.

    With the Apple TV (and console, etc.), there is no scaler, they assume that the display has a scaler, and Apple display have *no* scaler.
     

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