Can the Thunderbolt 3 devices output to Target Display (Thunderbolt 1)?

Discussion in 'MacBook Pro' started by jackoatmon, Nov 13, 2016.

  1. jackoatmon macrumors 6502a

    jackoatmon

    Joined:
    Sep 15, 2011
    #1
    Obscure and discontinued (but excellent) feature.

    I'm planning to use my 2011 27" iMac as a Target Display for my new MBP, when i receive it.

    Has anyone sucessfully done Thunderbolt Target Display with a new USB3-C port?

    I assume it would require:

    Thunderbolt 3 -> Thunderbolt adapter (or hub)
    Thunderbolt Cable

    Perhaps someone's done it with a TB3 Macbook or a 2016 13" MBP?
     
  2. jermwhl macrumors regular

    jermwhl

    Joined:
    Sep 29, 2014
    Location:
    San Diego, CA
    #2
    It's still supported in Sierra, so I don't see why not. As you stated, you'll need the TB3 to TB adapter. I just picked up one today for my external hard drive, but no TB display to test this.

    https://support.apple.com/kb/PH25670?viewlocale=en_US&locale=en_US
     
  3. jackoatmon thread starter macrumors 6502a

    jackoatmon

    Joined:
    Sep 15, 2011
    #3
    Well, I personally can see one reason why not (potentially):

    Target Display through TB (not MiniDisplay) has only ever worked TB -> TB across TB cable.

    Now we're introducing a signal converter in the TB3->TB adapter. No telling whether that signal conversion supports whatever protocols were used for Target Display. Or whether TB3 sends it out in the first place.

    For the record, this is a question the techs at my local Apple store did not know the answer to, so real-world testing is the only way to find out.

    Hoping it still works!
     
  4. Gudi macrumors 68020

    Gudi

    Joined:
    May 3, 2013
    Location:
    Berlin, Berlin
    #4
    Most likely the TB3 to TB adapter is just a plug shape adapter and not a signal converter. I suppose the TB3 ports are backward-compatible and can speak TB2 and TB1 protocol if needed. Being able to serve as a display is a property of the iMac. The MacBook Pro needs to be able to send a DiplayPort stream via Thunderbolt port anyway.
     
  5. Crazy Badger macrumors 65816

    Crazy Badger

    Joined:
    Apr 1, 2008
    Location:
    Scotland
    #5
    Anyone know if this is possible on a rMB and if so, using which adapter?
     
  6. tophr macrumors newbie

    tophr

    Joined:
    Oct 17, 2016
    #6
  7. jackoatmon thread starter macrumors 6502a

    jackoatmon

    Joined:
    Sep 15, 2011
    #7
    Pretty sure the new machine does not output DisplayPort. It would have to be a 2011 or '12 with the TB port. Don't quote me but I've read that elsewhere.

    Basically, the weird thing about target display, was it only worked between Tb -> TB or Displayport -> displayport, but not between TB and displayport devices.

    Or something. It was complicated, as I recall.
     
  8. fyrefly macrumors 6502a

    Joined:
    Jun 27, 2004
    #8
    Actually I'm writing this on my Non-TouchBar 2016 13" MBP right now. Power plugged into one of the TB3 ports, and a mono price USB-C to Displayport cable with a Displayport to Mini-DP adapter on the other end on the other. It's plugged into my 2009 iMac and Target Display is working fine.

    This CABLE: http://www.monoprice.com/product?p_id=12908
    This Adapter: http://www.monoprice.com/Product?p_id=5714

    Setup works on my 2015 12" MacBook too (though without the extra port for power)
     
  9. tophr macrumors newbie

    tophr

    Joined:
    Oct 17, 2016
    #9
    Excited to report after a misguided purchase of some HDMI adapters (oops) at MicroCenter, I am now posting from my 13" touchbar MBP on my 2010 27" iMac in Target Display Mode.

    Monoprice Adapter on Amazon: https://www.amazon.com/gp/product/B002YQYCUM/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
    This USB-C Male to DisplayPort Male cable: https://www.amazon.com/gp/product/B01E9RTEI8/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
     

Share This Page