HT204303: MacBook ports and adapters

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drooboy

Q: 2015 Macbook and Dell Ultrasharp 27

Guys i have the new Macbook and Dell Ultrasharp 27inch screen. For some reason the usbc to hdmi adapter only gives me 720p and mirrored display.

Anything else and the screen goes blank. Screen works fine on MBP using HDMI direct. Also it works on 24 Dell Ultrasharps....

 

Heeelp

MacBook, OS X Yosemite (10.10.3)

Posted on Jun 10, 2015 2:24 PM

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Q: 2015 Macbook and Dell Ultrasharp 27

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  • by Lanny,

    Lanny Lanny Jun 10, 2015 7:19 PM in response to drooboy
    Level 5 (7,895 points)
    Desktops
    Jun 10, 2015 7:19 PM in response to drooboy
    Dell Ultrasharp 27inch screen.

    Can you be more specific, there are multiple models of Dell Ultrasharp 27" models, i.e., U2711, U2713, U2715.

     

    What is the display's native resoltuion?

  • by drooboy,

    drooboy drooboy Jun 11, 2015 12:40 AM in response to Lanny
    Level 1 (0 points)
    Jun 11, 2015 12:40 AM in response to Lanny

    Dell Ultrasharp U2713H - 2560 x 1440

  • by John Swords,

    John Swords John Swords Jul 2, 2015 8:02 AM in response to drooboy
    Level 1 (0 points)
    Jul 2, 2015 8:02 AM in response to drooboy

    Setting the display to 1920x1080 doesn't work? 

     

    I found that the HDMI output on the 12" Macbook is fickle.  It only wants to output 16:9 --  720, 1080, or 3840. I had a lot of issues with a 16:10 Dell display.  Flicker, blanking, and crazy distortion.  Switched to a Dell P2715Q 4K display and it's more reliable but the resolution options are limited and terrible.