cinema display recognized, but black with non-working power button

i just bought a mac pro and used my 20 and 23 inch cinema displays with it. the first day i rebooted several times (because of installing various programs and doing a software update) and both screens worked fine.

however, today i start up my mac pro and the 23" (my main display with the dock, menubar, etc) was completely black with no power light. but i was baffled because it still had my menubar and dock, and acted as if it was still working. what is going on!?! any help would be greatly appreciated.
thanks,
morgan

mac pro, 23" and 20" cinema displays Mac OS X (10.4.10)

Posted on Jul 11, 2007 8:50 AM

Reply
99 replies

Oct 4, 2007 8:53 AM in response to mikestephenson

YES: ITS THE F%$#ING BRICK!!!!

Sorry, a little frustrated... 😉 Just finish reading all the posts and you'll see this is clearly the answer. I had the exact same problem and replacing the brick solved with absolutely no recurrence whatsoever...

Just get a replacement brick, read the posts if you need to figure out how to do that...

Good Luck

Oct 14, 2007 4:20 AM in response to morgan maassen

Same here - 23 inch cinema display in a sudden started to show the "stays black although recognized" sickness. The rapid power off/on procedure helps to bring it back to life. Sometimes it is a matter of just a few off/on cycles but other times it takes plenty of these. However, after revival the display stays on for as long as I want it to.

After the several reports that a new power brick solves that annoying issue, I would like to know if there is anyone who didn't succeed with replacing the power brick?

Greetings,
jcr

Oct 16, 2007 9:36 PM in response to yank

After reading the multitude of threads with chronic 23" ACD problems, I have to wonder, is Apple focusing mainly on the NEW displays that may be coming??? I looked at the rave reviews for this model on CNET posted in '05 and '06, and then all of a sudden, like falling off a cliff, a lot of angry reviews started appearing after that.

I have had no problems with my 30" ACD and was hoping the 23" would be good for my office. Looks like it's wait and see. Seems like a crap shoot to me. Too bad. Great display, if you get one without problems.

Dec 3, 2007 6:05 AM in response to morgan maassen

I have a G4 with a 23 inch cinema screen. After several years of trouble free use the screen flashed and went black, and then the on button on the screen started to flash three times and then pause. After a short while fan in the tower (or the hard drive) made a very loud whirring sound. I turned the computer off and on several times but still had a black screen and a flashing power button. Finally I turned off the computer, unplugged the ACD from the tower, restarted the computer and then replugged in the ACD. I got a corrupted screen which eventually corrected itself. Hope this is of some help to someone else in this situation. Does anybody recognize this set of events? Should I be replacing something?

Jan 28, 2008 6:21 PM in response to morgan maassen

I'm having the same problem with the "off" screen that still seems to be recognized in a dual display config... I tried most of the relevant fixes noted here, short of the "new brick" approach.
None worked.

Then I unplugged the Firewire and USB cables from the display and plugged the DVI input back into my MBPro and Voila, it's back.

Might just be dumb luck. It might go out again in 5 minutes or 5 days, but it's working now.

So if you're having this problem, clearing the ports might help.
Now if I could just work up the courage to plug them back in.

Feb 20, 2008 2:53 PM in response to Tyler Johnson1

I had the same problem. Wanted to explode in anger with my display not working, it's such a nice Display but your world goes down when it does.

Called Apple, got a new brick for $80 and IT WORKED! Reboots with Mac Pro on Leopard as expected.

Now I just have to call Apple back to get the double charge refunded they did. Hope the new brick doesn't die!

Mar 20, 2008 1:36 PM in response to morgan maassen

My Apple Cinema Display would briefly turn on, and then go black with no powerlight showing, when the system woke up or restarted. I knew the system had turned on properly because it would make the "new mail" sounds. My 'work around' was to unplug the monitor for a minute or two and then the display would come back on immediately.

From reading the posts in this thread I decided to try a new power brick. I was still under Apple Care, so they sent one out under warranty. It is not the same model as the original - perhaps the original ones were faulty? With the new powerbrick, the display has performed flawlessly. My old powerbrick has - in very small writing - "Celtron APP 22-611-0344". This was the old faulty one. FYI.

Hope this helps someone with the same problem

Apr 1, 2008 4:13 PM in response to morgan maassen

For what it's worth, I just spoke with an Apple rep about my problem (which was/is essentially the same as what everyone here is describing), and he said that it is a known issue and that it is software-based -- that is, it is actually something that should be fixed in a future update of Mac OS X. I'm currently running 1.5.2.

Although he was cryptic as usual about when that update would happen, it at least sounded hopeful. Not sure if that puts anyone's mind at ease or helps at all, but I thought I would at least report.

Apr 4, 2008 10:16 PM in response to snberk103

I ordered a new brick after having this issue for years . (It was "repaired" three times). The monitor works when it wants, turns off and on randomly. I go weeks sometimes without an issue, and of course it worked for a couple months when returned from being "fixed," so it has been difficult to chuck it and get a new one.

Unfortunately the new power brick did not solve my problem. Display continues to be my bane.

Apr 18, 2008 12:23 AM in response to morgan maassen

It poorly seems that my 23" apple cinema display adc is suffering from some similar symptoms shown above since few weeks. The Mac mini even stopped to sing is trumpet sound when starting up.

The first time I used the screen, everything was nice, clean & bright with normal behaviour sleep mode. Wow! but not for a long time... From about day 3, following an update (itunes and security pack and quick time, i think, can't remember) it could not wakes from a sleep state, screen staying black and the power light lighting in a repetitive motion (short-short---long---;etc.). Emergency solution then was to unplug/plug again the power cable of the dvi-to-adc adapter to wake the screen back. The repetitive and intermitent syndroma continued untill that day, 2 exact weeks after I bought the apple display from a particular, there it showed no signs of life. The Mac Mini starts (but no trumpet sound), drive sound as normal but no power in the screen, the abnormally cold adc/dvi brick is making a high pitched quiet noise with some clicks in a uncoordinate motion.

I tried all possible tests, plugging the display to a powermac g4 with adc/vga video card = still no power to the screen/ then check the mini with other DVI screen = video card of the mac is working great. I'd just returned the adc/dvi adapter to the retailer for an exange, waiting to see if a new adapter could be a possible solution. But the test with the powermac tells by itself, the bug is in the screen (but where in that d%?$ screen?).

Some of you talked about a upgrade or firmware case; considering the long period of time those toubles occurs to so many users joined to the important number of similar cases in this topic column, I can't figure out how apple can endure that recurent problem unresolved with only vague firmware issues or explanations in counterparts. any other similar cases, or issues?

Apr 18, 2008 7:11 AM in response to morgan maassen

hi, it's still me with my 23" ADC apple cinema display problem. I did just forgot to tell about my last test to explain the power faillure trouble I'm dealing with for about a week. I get this display connected last night all long to an adc port of a nVIDIA GeFOrce 4 mx of a Quicksilver tower and it worked again after a while (all the buttons pref and power shows both good response, the powermac detects prettywell the adc monitor, everything get back to normal and even better (no more random display stanby trouble, power light flashing and etc.) I'm even thinking to buy that Quicksilver tower my local pawn shop borrowed me too make my test)

I did just let the computer run (with no program running) after having plugged my composite benQ screen on VGA port and the ADC monitor to the ADC plug. At first, unsurprisingly, the Apple HD display wouldn't light up (still no power) but this morning when I did wake up, I wasn't dreaming, the power signal of the clear case monitor was lighted up back ! Can't believe this, it get finally working back again during the night for no apparent reason! And for so I had to disconnect the Benq screen and restart the computer properly. The BenQ now detects no signal(powermac don't see the BenQ screen *an the ADC screen is working well*. SO IT IS NOT A HARDWARE TROUBLE OF THE APPLE ADC HD CINEMA DISPLAY that may causes the power light to shutdown and lightup alternatively in some strange sleep mode (after sometimes really short periods of time while the monitor preferences we're set to never let the display fell in standby mode) . The hardware test I did proves it by itself. To anyone is experimenting similar problems with a ADC apple monitor(showed in my last communiqué) , let me say if this article helped you or at least reconfort a bit about your case.

In the meantime, I impatient to hear the type of answers that the technician at my apple certified store will come up with when I'll get back my adc/dvi converter from exange next week. UNTILL THAT TWO THESIS LEFT AT THIS MOMENT TO EXPLAIN THIS UNPLEASANT AND INCOMPREHENSIBLE EXPERIENCE :AN ADC/DVI ADAPTER/COVERTER TROUBLE (INPUTABLE TO HARDWARE ISSUE)- OR - A CONFLICT CREATED BY SOME UPLOAD FROM THE LAST OSX 10.4.11 UPGRADES. THAT'S ALL I SEE...

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cinema display recognized, but black with non-working power button

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