17 inch MBP and dual displays

Discussion in 'MacBook Pro' started by typeadam, Dec 21, 2014.

  1. typeadam, Dec 21, 2014
    Last edited: Dec 21, 2014

    typeadam macrumors regular

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    #1
    I'm picking up a 17" MBP from a friend in about 2 weeks. It's the MD311*** (forgot the rest) model. Late 2011, I believe.
    Anyway, he's never used it w/ an external display, only the laptop screen.
    I have 2 Dell U2715H monitors. They're 1440p and have DVI, HDMI, VGA, and of course DisplayPort. The Dells also do MST or Daisy Chaining so I can hook up one monitor to the other w/o the computer having two DP outputs.
    I also have a 24" Cinema Display 1920x1200.
    My question is will I be able to connect the 17" MBP to the 2 Dells and run them both at 1440p (laptop screen will be OFF).
    OR
    Am I stuck with the 24" Apple Cinema Display only since the 24" and the MBP are both 1920x1200.
    Thanks!
    PS: The Dells are hoooked up to the Surface 3 and run fine at their max res. But I understand the Surface is 3 or 4 years newer than the MBP so I'm concerned.
     
  2. typeadam thread starter macrumors regular

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    #2
    OK, I found a better way to ask my question:
    Can the 17" MacBook Pro drive two 1440p monitors? :D
     
  3. yjchua95 macrumors 604

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    #3
    When mirroring, the highest you can set in the entire setup is the native resolution of the monitor with the lowest resolution in the chain.

    For instance, if you have a 1920x1200 17" MBP, but connect a:
    1. Single 1920x1080 monitor in the chain, or
    2. 2560x1440 monitor and 1920x1080 monitor in the chain,
    the highest resolution that can be used during mirroring is 1920x1080.

    And when two 2560x1440 displays are connected in the chain, the highest resolution that can be set for mirroring is the native resolution of the lowest-res monitor in the chain. In this case, it would be 1920x1200 of the 17" MBP.

    If mirroring is turned off, all monitors can run at their native resolutions.

    Your MBP can drive two 2560x1600 displays alongside its internal 1920x1200 display.
     
  4. typeadam thread starter macrumors regular

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    #4

    Thank you! Much appreciate the fast response. :)
     
  5. Anitramane macrumors 6502

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    Dec 23, 2013
    #5
    What about 1920x1200 monitors?
     
  6. yjchua95 macrumors 604

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    #6
    Then since all monitors in the chain have the same resolution of 1920x1200, mirroring can be done at native resolution on all monitors.
     
  7. PMS2015 macrumors newbie

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    Jan 24, 2015
    Location:
    Japan
    #7
    typeadam,

    I have a maxed-out MacBook Pro Retina 15" Late 2013 with a U2415 external display but some Yosemite system fonts are too small and blurry.
    I was thinking about buy two U2715H, since the resolution is higher, can you tell me how the system fonts look on it, please?
     
  8. Freyqq macrumors 68040

    Joined:
    Dec 13, 2004
    #8
    The 17" only has one displayport, and I don't think OSX supports MST over displayport for dual displays - just 4k support over MST for a couple computers. The rmbp has 2 displayport and an hdmi, which sidesteps this issue.
     

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