MBP Late '11, Mountain Lion & 24 Cinema Display

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MBP Late '11, Mountain Lion & 24 Cinema Display

Hi,

I've upgraded my Macbook Pro 15" of late 2011's OS to Mountain Lion. After the upgrade my 24 Cinema Display is completely dark. The USB ports works, the on/off button works, and asks wether the Mac should shut down or not when connected, but it just doesn't show any image. The computer can't see the monitor is connected either.

The monitor worked with lion just before the upgrade, but is now completely dark. We've tested the monitor with a different Macbook Pro 15" of late 2011 that still runs Lion, which worked perfectly.

I did check out the post at https://discussions.apple.com/thread/4148874?answerId=19068789022#19068789022, and I tried to download the update. But when trying to install this firmware update I get the following error: "Alert, your computer does not need this update."

My problem however isn't flickering, but the fact that the monitor isn't recognized by the computer itself. We did try adding on a second monitor to the computer, with the same adapter - which worked fine, however it isnt an Apple monitor, and the quality isn't satisfying compared to the Cinema Display, so I would like this monitor to work again.

Any ideas? Thank in advance!

Best regards,

Michael

Posted on Aug 7, 2012 11:42 PM

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Answer 1

Mrbrandbart Author

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Aug 30, 2012 1:31 AM in response to Mrbrandbart

Any updates Apple? The last software update didn't help. The monitor is still black.

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Answer 2

fyuan

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4 points

Sep 6, 2012 8:57 PM in response to Mrbrandbart

Have you solved this issue yet? I encoutered the same issue after my laptop was upgraded to Mountain Lion.

The cinema display used to work with my laptop with Lion OS

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Answer 3

jjtomsic

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Sep 8, 2012 8:45 PM in response to Mrbrandbart

I have this EXACT SAME problem and have tried any number of power cycling combos. Read several other threads and it doesn't seem like there is any solve yet. C'mon Apple. Fix this.

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Answer 4

fyuan

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4 points

Sep 9, 2012 12:33 PM in response to jjtomsic

have you solved this problem?

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Answer 5

jjtomsic

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Sep 10, 2012 8:42 AM in response to fyuan

No - haven't found a way yet. Considing downgrading to Snow Leopard

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Answer 6

fyuan

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Sep 10, 2012 9:23 AM in response to jjtomsic

but Snow Leopard is not available in a Dics Media, how can you downgrarde the system?

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Answer 7

Mrbrandbart Author

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Sep 11, 2012 3:49 AM in response to Mrbrandbart

Hi everyone,

I paid Apple a Single Support licens, and we figured out how to solve my issue. I will put the articles Apple took me through in the bottom of this post, I hope this will help you guys out aswell.

During the first article (Resetting the System Management Controller (SMC)), my monitor suddenly woke up and began working. I've been using my monitor without any problems for almost a week now.

I'm sorry I haven't shared these articles sooner, the supporter forgot to send them to me as we agreed, so I had to call Apple again - which I did today for the purpose of sharing.

http://support.apple.com/kb/HT3964?viewlocale=en_US

http://support.apple.com/kb/HT1455?viewlocale=en_US

http://support.apple.com/kb/PH3878?viewlocale=en_US

http://support.apple.com/kb/HT4718?viewlocale=en_US

http://support.apple.com/kb/HT1379?viewlocale=en_US

I hope this will help at least one other person.

Best regards,

Michael

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Answer 8

fyuan

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4 points

Sep 12, 2012 10:48 AM in response to Mrbrandbart

I'll try it with your solution. Hope it will work on my monitor. thanks.

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Answer 9

fyuan

Level 1

4 points

Sep 14, 2012 6:14 PM in response to fyuan

Totay, I took the cinema display to the Apple store at local. The guy there said that there is a problem with the monitor, and some component inside is broken, after he tested with several ways. But I donot believe him.

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Answer 10

fyuan

Level 1

4 points

Sep 22, 2012 11:47 PM in response to fyuan

I checked the post online, and some guy suggested we should use the 150W Power Adapter to seek a luck. Does anyone want to make a comment on this? My display is 23' one and a 90W power adapter comes with it.

Thanks.

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Answer 11

Sep 29, 2012 6:33 PM in response to Mrbrandbart

Same here. I've searching multiple threads and forums searching for an answer on this.

My 23" aluminum Cinema HD works fine on my iMac running Lion, or Macbook running Snow Leopard.

But, plug it into my brand new Macbook Pro 13" 2012 running Mountain Lion .... and nothing. Tried power resets smc and plugging in monitor first or while sleep or ... etc. Tried all the possible fixes all over the net. Nothing.

So frustrating.

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Answer 12

Oct 1, 2012 8:04 PM in response to Mrbrandbart

My problem is fixed - should have though of it at the start. I was using a third party Kanex iAdapt MDP -> DVI connector. Bought an Apple version and all works great so far.

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