I called apple support (or more correctly set up a time for them to call me, worked really well, no wait time), and have somewhat of a solution.
Turns out counter to what I would assume for years of using laptops, the TB cords should be connected to the MBA when it is awake and open. If the TB is connected when it's asleep, the display works, but none of the peripherals (USB, Facetime camera, etc) work for me. Has worked every time for me now.
This does seem counter to Apple's own marketing in my opinion as a docking station, since when I return to my desk with the laptop closed to "dock" it I would assume I would just plug in the cords and wake it up, but that is exactly what doesn't work.
According to the tech, when the laptop wakes up, it doesn't go through the all checks it would when a TB is plugged in when it's awake. Can't speak to the technical details, but experience does seem to support the method.
Hope this helps someone else.
just briefly „my TBD-story“:
- First TBD with sporadically dropouts of LAN- and USB-ports after waking up of MBA (closed display); ofcourse with latest firmware and updates
- two calls with Apple Support Line (SMC-reset and so on): without success
- try to repair at Apple Service Center (changing power supply AND Logic board): without success
- further call with Apple Support Line: after telling „my TBD-history“ I was directed to an Apple Manager: result: TBD will be changed into a new one
- Second TBD: runs as expected from the beginning without any errors (since two days) :-)))
Hope this can help somebody of you...
Hi, could you confirm in a few days that everything is still working for you?
Some people have seen this problem reappearing after a couple of days.
They also gave me the option to replace the screen but I wanted to be sure their new TBD production would actually fix that problem before going to the Apple store.
To be complete ;-))
Herstellername: Apple, Inc.
Gerätename: Thunderbolt Display
Status: Keine Geräte angeschlossen
Super Port Micro-Firmwareversion: 0.0.21
My TBD behaved more or less ok until it stopped working 5 weeks after purchase. I brought it to an apple service center. It was the first TBD monitor in their hands, so they have some delays getting it to work. Some 6 weeks later (late january) I got it back.
Two weeks ago my MBA stopped working. The technician changed logic and io boards, and I got a working MBA yesterday.
For 20-30 minutes the MBA worked well with the TBD, but when I put it into sleep mode I felt a "short circuit" noise and, near the MBA, a weak ozone smell (typical on an electrostatic discharge). Now both the MBA and the TBD are back in the shop.
I have worked on and used electronic hardware for over 30 years. Based on my own problems and those described in this forum, the TBD is the worse piece of equipment I have seen in the market. The problems people are describing here may be normal on an early beta development version of a product, but are simply not acceptable in a final version.