New answers tagged television
I have exactly same set up down to the MBA 2012 + Adapter and Cable. It has been working flawlessly since. So far I used it on 3 different TV models. In your case I would say it is the adapter, they tend to be flaky (what do you expect for $6). But, you can take a look in the Console and see what the "Windoserver" is doing when you plug in the cable. ...
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