Why no target display mode on Skylake iMacs?

Discussion in 'iMac' started by formerapplefan, Nov 13, 2015.

  1. formerapplefan macrumors member

    Joined:
    Sep 9, 2014
    #1
    Does anyone know why there is no target display mode in the latest iMacs?

    I thought that one of the benefits of Skylake was Thunderbolt 3 which is meant to have enough bandwidth to drive the display.
     
  2. iemcj macrumors 6502

    iemcj

    Joined:
    Oct 31, 2015
    #2
    Yeah we've all wondered this. It's a real shame too, would be nice to use this incredible display for say a ps4, my personal opinion is that's exactly it, apple doesn't want anyone else to get to use their fancy display. :(

    Best real answer I can give is between the time of skylake release and when this had to be done, they didn't have time to make it rock solid reliable. Since steve jobs apple has prided itself on the phrase "it just works", and the potential complications of plugging an xbox into a 5k monitor may have prevented them from doing it. I think this is a pretty thin answer but it's all we've got haha
     
  3. cerberusss macrumors 6502a

    cerberusss

    Joined:
    Aug 25, 2013
    Location:
    The Netherlands
    #3
    As far as I can tell that's because, crazy as it sounds, Thunderbolt 3 doesn't support driving 5K displays via a single cable:

    There’s also the issue of driving 5K displays. Intel’s announcements about Thunderbolt 3 mention that it supports DisplayPort 1.2, which can drive high-resolution displays, but doesn’t appear to have enough bandwidth to drive a 5K display via a single connection. (It can definitely do it via two cables.) The new DisplayPort 1.3 specification, which is being finalized, is supposed to support 5K displays via a single cable.

    From: http://www.macworld.com/article/293...the-mac-could-be-saved-by-the-usb-c-port.html
     

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