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Macbook 12inch to thunderbolt display?

How do you connect the USC Macbook 12 inch to an Apple Thunderbolt Display?

MacBook, iOS 8.3

Posted on Apr 29, 2015 3:48 AM

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Question marked as Best reply

Posted on Jun 17, 2017 11:33 AM

Short answer: Thunderbolt displays - any generation - are not supported by the 12" MacBook. You must use an Apple computer that contains Thunderbolt hardware within it, which the 12" MacBook does not have.


Longer answer: I actually tried this in the spring of 2017 with a variety of adapters with one of the techs at a local Apple Store with just about all the (Apple-supported) adapters they had onhand that would mechanically fit the Thunderbolt 2 display. With every single adapter, we got a message on the 12" MacBook that we connected an unsupported display. Same thing happened with the newer Thunderbolt monitors produced by LG for Thunderbolt 3.


Conclusion: Even though Thunderbolt 3 connections are the same fit as USB-C (or that Thunderbolt 2 connections are the same fit as mDP) Thunderbolt displays will not work with those ports unless they are explicitly specified as Thunderbolt ports on the computer, meaning the computer contains the necessary hardware within it to make it work with Thunderbolt devices, including Thunderbolt displays.


This means that you have 3 options:

  1. You can get a third-party USB-C (non-Thunderbolt - this is important) docking station and a third-party HDMI display, both together comparable to the cost of the Apple-endorsed LG Thunderbolt displays. The USB-C (non-Thunderbolt) dock and HDMI display will work with the 12" MacBook, though I haven't had a chance to test its performance.
  2. You can opt for a MacBook Air, MacBook Pro, or some other Apple computer with specified Thunderbolt support, which will either work with or can be adapted to work with any of the Thunderbolt displays.
  3. You can just use the 12" MacBook like an iPad Pro that runs Mac OS, which really is what Apple's designers likely had in mind when they created the 12" MacBook - a hyper-portable computer that's not really meant to be used with any computer-style connected accessories; we don't expect our iPads to dock to external displays, right?
49 replies

Apr 29, 2015 9:31 AM in response to Csound1

Apple will never delete a post which is relevant to the topic. Please stop lying.


Henceforth, I shouldn't see you reporting or deleting relevant posts unnecessarily, when you run out of an idea to support your words. It needs efforts to type a particular post. Keep this thing in mind.


If you really want to prove yourself then you should provide some concrete evidence.

Apr 29, 2015 10:23 AM in response to Lanny

Here's what I do not understand:


Clearly the spec supports DP, MDP is electrically identical and uses the same connector is TB. MDP 1.1 and 1.2 are supported over TB, so what is missing?


Thunderbolt, developed under the name Light Peak,[1] is a hardware interface that allows the connection of external peripherals to a computer. It uses the same connector as Mini DisplayPort (MDP). It was first sold as part of a consumer product on on February 24, 2011.[2]

Thunderbolt combines PCI Express (PCIe) and DisplayPort (DP) into one serial signal alongside a DC connection for electric power, transmitted over one cable. Up to six peripherals may be supported by one connector through various topologies.

A single Mini DisplayPort monitor or other device of any kind may be connected directly or at the very end of the chain. Thunderbolt is interoperable with DP-1.1a compatible devices.

Apr 29, 2015 11:57 AM in response to Csound1

According to Intel's ThunderBolt spec versions 1 and 2 support MDP as a video protocol,

Yes, but the reverse of that is not true. A Mac with MiniDisplayport will not work with an Apple Thunderbolt Display. Did you read through the Apple Support and example links that I provided. Thunderbolt supports Displayport, but Displayport doesn't support Thunderbolt.


I'm done here. You're just clogging up my email box.

Macbook 12inch to thunderbolt display?

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