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Apple display and Thunderbolt compatibility

Hi,

Looking at the Intel spec for the Thunderbolt technology ( http://www.intel.com/technology/io/thunderbolt/index.htm), it is my understanding that they use a chip as controller to merge the internal PCIe and DisplayPort signals to two bi-directional 10GB/s channels to the target device which can be a display or drive or both. Therefore, if the target device is a drive, it needs to be Thunderbolt compatible, which means that it needs to include this same Intel controller. Now, if the target device is an Apple display, do they already have this controller ?
Based on what I understand from the Intel spec, the display has to be Thunderbolt compatible:

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And Thunderbolt enabled products are compatible with existing DisplayPort devices so you don’t have to go buy a new display to take advantage of a Thunderbolt technology enabled computer
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So, are the existing Apple displays already Thunderbold compatible or do we have to wait or buy an adapter ?
I do not understand how Apple displays already sold x months back can work while connected to this Thunderbolt port on the laptop, if this port uses this special controller which also needs to be on the target device.

I have not found any information for Thunderbold on the Apple spec page for their display and I have not found any Thunderbolt adapter for native Apple displays.

Any idea ?

Thanks

iMac 20"

Posted on Feb 26, 2011 12:11 PM

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Posted on Feb 26, 2011 12:58 PM

I have a 24" LED Cinema Display with MiniDisplay port connection and it works on my new 2011 15" MBP with Thunderbolt port (using it right now!).
101 replies

Jul 26, 2011 1:41 PM in response to Mike95

Thank you Mike95.

I posted my issue on different thread and got some responses. They are people with the same issue, with the same configuration.


https://discussions.apple.com/thread/3198411?answerId=15720875022#15720875022


I suspect it might something related to the Mac Mini thuderbolt port (maybe not stable), as I previously had no issue with my 2008 Macbook with mini display port.


Charles

Jul 31, 2011 12:24 PM in response to nwipfli

I tested 2 Mac minis with the same configuration (mid 2011, 2.5GHz AMD Radeon HD 6630M) one from the online Apple Store and the other from the retail store, and both make my 24" LED Cinema Display flicker. Tested the display with a MacBook Air (2010 no thunderbolt) and it works perfectly.

So something is definitely wrong with the minis and the thunderbolt port.


Apple, please fix it!

Aug 2, 2011 11:20 PM in response to llg696

This problem is reported for MBP's early 2011, iMac's Mid 2011 and Mac Mini's mid 2011.

All these computers have the Thunderbolt port.


It seems it works fine with the 27" ACD but is having problems supporting a 24" ACD.

ALSo other make external monitors seem to be flickering when connected to a TB port.


Most surprisingly, no reports yet of the latest MBA's having problems with the 24" ACD.

Aug 3, 2011 12:02 AM in response to NicoNB

Thanks NicoNB! The fact that there is no issue with the MBA might be due to 2 things:

1. Apple corrected the problem, hence there is a possible firmware solutions which is due to be out soon - probably waiting to see if there are any issues reported within the next few weeks.

2. The MBA is using half the power on the Thunderbolt, this may have something to do with the fact there is no issue.


Charles

Apple display and Thunderbolt compatibility

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