no dvi input macbook air os update high sierra

It's the firmware that is the issue! I noticed both the 17' models that wouldn't power on my interface had the same firmware as I posted in the screenshot! Firmware Version: d.0, Port Micro Firmware Version: 1.2.1 Anyone have any ideas of what to try or similar experiences not getting power from their thunderbolt ports? Could this be software even?ĭAN! Okay I found out what the problem is, you're going to want to make a note of this as it will be helpful to others.įirstly, I stumbled across this which provided clues. Is it possible they're not providing power through the correct pins? The pins look clean to me so I don't see any obvious issue and the fact it works for target disk mode also seems strange. This made me happy but it still leaves a lot of questions about my 2 macbook pros and their thunderbolt ports. First I hooked one computer to the other in target disk mode to test the cable, no trouble getting target disk to do it's thing, but I went ahead and bought a genuine apple cable anyway just to be sure, still no signs of life from the interface.įinally in a 'there is no way this is going to work but what the heck' moment I tried hooking it up to my brothers same 2011 model macbook pro 17 and voilà, it does its usual LED streak up light. At this stage I was thinking okay this has to be either the thunderbolt cable or the Interface has died on me somehow. Just today I tried the interface on two different 17-inch macbook pros of mine (one running High Sierra the other is El Capitan and it appears to get no power from either of them. Here's whats going on, I have a Zoom TAC-2 Thunderbolt Audio interface which I've been using for sometime with another macbook pro 17' and it had no problems on a macbook air either.

No dvi input macbook air os update high sierra