Currently Being ModeratedNov 3, 2012 7:17 AM (in response to crobbo)
Might have found part of the problem. I had a USB cable in the back of the display to connect to my camera when I need it. Since I removed the cable I haven't seen the problem again. I'm sure the problem can't be this simple but a strange coincidence.
Currently Being ModeratedNov 6, 2012 10:35 AM (in response to crobbo)
very well may be USB
Lots of other threads here and many of us have had weird problems all relating to devices plugged into th USB on the Thunderbolt Display and , I am now suspecting, many of our devices are not new.
How old is your camera? Older USB drivers may be the demons here
Currently Being ModeratedNov 7, 2012 2:45 PM (in response to Barbara Passman3)
Thanks for the reply Barbara. This issue happens when only the cable is plugged in, the camera is not even attached. I've only had one boot issue since I removed the cable (which I overcame my taking the thunderbolt cable out of the Mini and then plugging it back in), but when the USB cable was in place it happened 90% of the time.
Currently Being ModeratedNov 7, 2012 9:40 PM (in response to crobbo)
Glad I could corroborate your findings.
I am still working with Apple Support to get better understanding of the USB issues with Thunderbolt
Currently Being ModeratedMar 2, 2013 8:52 AM (in response to Barbara Passman3)
I spoke too soon - still got the same problems. Thought at one point I had a faulty power cable but that is not the problem.
The behaviour is wier :-
1. I Boot my Mac Mini. Screen stays black. I hear the small fans spin in the Thunderbolt and air comes out of the vents. So the power must be on...
2. My iPhone, attached to Thunderbolt via USB, beeps as it starts to charge, then it stops charging, then it beeps to start charging and off again - and so on. Eventually this stops but the screen does not come on.
Tried for over an hour, checking connections ,rebooting the Mini etc etc. Then eventually for no apparent reason it came on. Rebooted several times, and it workd again.
This behaviour started after weeks of no problems, but then I moved the screen to plug something into the USB port.
Beginning to wonder if the behaviour is consistent with the screen sleeping over and over again.. Have switched off the energy saver settings on the mini but don't know if this will help.
Currently Being ModeratedSep 25, 2013 11:32 PM (in response to crobbo)
I am having the exact same problem with a TBD and a macmini. I noticed the same thing crobbo did with the iPhone. Did you ever figure out what it was?
Currently Being ModeratedSep 26, 2013 11:38 AM (in response to Yaworsky)
Sounds like a bad (or poor connection) TB cable/plug. My TB plug is a tight fit into my Mini and I need to push it in with some force to make a good connection.
Currently Being ModeratedSep 26, 2013 1:08 PM (in response to tbirdvet)
I agree. After playing around with it this morning I suspect that I am having connectivity issues. I noticed the thunderbolt cable is quite twisted/worn near the connector (this display was in storage for almost a year and I think it probably was resting on the cord). I may need to have it replaced I finally got it to work after "massaging" the cable. Thanks for the help.
Currently Being ModeratedSep 29, 2013 1:21 PM (in response to Yaworsky)
I still get the problems I originally reported, usually triggered by me moving the screen to another desk etc. The strange thing is that when it happens I can hear the fans inside the screen come on and cool air blows out of the vents, then that stops and the screen stays black. When it works okay, the same things happen but the fans stay on the screen comes on. I've no idea why sometimes this fails.
The last time it happened I left if for a day or two, switched on and it was fine. I have absolutely no idea what this issue is but because it is so intermittent I can't demonstrate at the Apple store. I reckon they thing I am nuts!
Currently Being ModeratedSep 30, 2013 7:12 AM (in response to crobbo)
I went down and picked a thunderbolt cable and used that to connect my mini to my display. All of my problems have disappeared. Therefore I think my problem is probably the multi-cable. I am going to take it in to the apple store to get an esitmate for repair. You might want to give that a try.