Mini display port to VGA has low resolution and refresh rate

Discussion in 'Mac Accessories' started by Lambros, May 25, 2011.

  1. Lambros, May 25, 2011
    Last edited: May 25, 2011

    Lambros macrumors regular

    Joined:
    Feb 24, 2010
    Location:
    Sydney, Australia
    #1
    Hey guys, today I received a mini display port to VGA adapter for my macbook pro. I hooked it up to a 32" monitor in hope to use my macbook pro as a media center when at home. The problem im facing is that when showing the image in my monitor (1920x1080 native res @ 100Hz) it can only display at a maximum of 1680x1050 @ 60 Hz. This is causing me some issues because I am watching videos at a much lower res than I paid for. The monitor is a Sharp LCD TV (very new) and the macbook pro is the 15" 2010 model (if that makes a difference.

    Is there any way to resolve this or am i stuck with this resolution and refresh rate?
     
  2. JediMeister macrumors 68040

    Joined:
    Oct 9, 2008
    #2
    You should be using either a Mini DisplayPort to Dual-Link DVI or Mini DisplayPort to HDMI adapter instead. The dual-link DVI adapter is $99, and the HDMI adapter $34.95 on the Apple Online Store.
     
  3. Lambros thread starter macrumors regular

    Joined:
    Feb 24, 2010
    Location:
    Sydney, Australia
    #3
    Can these adapters be returned or no?

    Thank you
     
  4. alust2013 macrumors 601

    alust2013

    Joined:
    Feb 6, 2010
    Location:
    On the fence
    #4
    There is no reason to use a dual-link DVI adapter. The standard adapters can easily handle 1920x1080. Personally, I would recommend a MiniDisplayPort to HDMI adapter and cable from monoprice.com, which will cost about half of just the HDMI adapter from apple.

    However, I think there should be an option of 1080p in displays under system preferences, which will get the 1920x1080 resolution. I do believe you're stuck with 60Hz, but there really isn't a whole lot of anything that benefits from higher refresh rates.
     
  5. JediMeister macrumors 68040

    Joined:
    Oct 9, 2008
    #5
    My understanding was that to connect a display of 30" diagonally or greater you'd want to use dual-link DVI, but I could be wrong.
     
  6. Phil A. Moderator

    Phil A.

    Staff Member

    Joined:
    Apr 2, 2006
    Location:
    Shropshire, UK
    #6
    It's not the physical size that matters but the resolution: 1920 x 1080 is not a particularly high resolution and doesn't need dual link DVI
     

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