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24 inch LED cinema Display momentarily goes black

I have a 24inch LED Cinema Display attached to the mini-display port of a ATI Radeon HD 4870, with a 23inch Cinema Display attached to the other port. The 23 inch is fine but the 24 inch display every so often goes BLACK for a second or two. I thought it was the display and had it replaced but it's happening with the replacement. Perhaps the video card, or even the mini-display port on the card? Anyone having this issue or have any ideas? I appreciate your help.

2 x 2.26 GHz Quad-Core Intel Xeon, Mac OS X (10.5.7), 8GB ram

Posted on Jun 25, 2009 3:23 AM

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84 replies

May 27, 2010 5:14 PM in response to Motionworks

Plugged in my new 15" MacbookPro i7 this moring - good start. Then plugged in the 24" display - brilliant. Worked all day, then suddenly it started flickering, then going black for seconds, and now minutes at a time. Checked power, connections, etc. Plugged in another 19" display - no problem. So seems I'm in the same boat as others on this discussion.

OK Apple - I spent $1,000 on this thing - what's up? Should I send it back and just use my old 19"?

N

Jun 18, 2010 9:10 AM in response to Motionworks

Hi, guys!

3 weeks ago I took my Display to the service. They accept it for testing. Today I took it back, serviceman said that they hadn't found any blackouts and Display is ok. After plugging at home I'M WATCHING THOSE BLACKOUTS every 5-10 minutes! It seems that the problem is in MBP mini-display port. 😟 I'll give the Display to my 2 friends with MBP and see if they have blackouts...

Jun 28, 2010 6:06 PM in response to Alex DiPaola

Alex,

Actually after my initial post, I have had no issues.... until TODAY! Which prompted me to come back here, whereupon I noticed your post directed at me.

So mine's blinking every few minutes at the moment. But up until today it has been fine. Go figure.

Totally random. I'm extremely happy with my set up otherwise. Alex, if you do get the 2 x LED displays, make sure you buy some mini DP extension cables as the cable attached to the LED display is WAY short, designed for hooking up to your laptop right next to it.

Jul 14, 2010 1:04 AM in response to Tony Welch

I had the intermittent on - off thing. Now I just have the off thing!

This is my second 24" display. The first went pop (literally) and was replaced. Now I'm 14 months down the road with the replacement and it's broken too. Very poor considering the initial cost of these displays. There's definitely a problem with these monitors, be it design or QC. When they work they are glorious but I couldn't recommend them. Irritatingly, because of the cost of these things I feel that I'm going to have to try to get it repaired. Goodness knows how much that will cost??

Jul 27, 2010 3:18 AM in response to Motionworks

I have had the same issue with my 24 LCD Cinema Display.

It is plugged into my brand new MacBook Pro 2.4Ghz Intel i5. It blacks out for under a second intermittently and completely unpredictably. Sometimes fine for a day or two, then blinks off three times in a row. I took it in to the Apple store on Regent Street, London to be fixed under warranty and waited a month to get it back. They replaced the logic board and the power supply and said they had tested on a MacBook Air for an hour.

I got home and plugged it in and hey presto, same bloody problem. Nothing fixed. Called up and they said they could book me an appointment at the Genius Bar. They also said that the listed problem was in fact with the video cable and not the power supply or logic board. Pity the Regent Street store geniuses did not know that as they left the old video cable on there (must have been a lot harder to change logic and power instead of one cable).

Having taken half a day twice to take it there I do not fancy trekking over there again. Not happy at all and I have little confidence in this product any more. If I lose it for another month in repair and they have not fixed the problem I am not going to be a happy bunny.

Jul 31, 2010 9:59 AM in response to Littleladsdad

Hi LittleladsDad,

I noticed your mention of your Apple Cinema Display going 'pop' some time ago. One of my 24" screens went pop earlier. I thought it might have been a plug fuse but unfortunately it's not. It's only 8months old. I wonder could you tell me what happened to yours? Was it working intermittently before it broke? or did it just stop working? How were Apple about it?

Many Thanks
Dylan

Aug 3, 2010 5:40 PM in response to ezyjules

I have encountered a similar problem after having switched displays between two MacPro's. After the switch the Apple Cinema display refused to work consistently with an early 2008 MacPro with the ATI card. I tried several things with no success. It was suggested that I boot the troublesome MacPro with extensions off- hold down shift key during the early boot process. The computer seemed to take a longer than usual time starting up with a great deal of disk activity and when it finally came up the displayed worked fine. 24 hours so far with no blinks or other strange behaviors. Not sure exactly what happened during the process but it seemed like some old parameters may have been reset.

Aug 13, 2010 12:13 AM in response to ezyjules

Well I have just gotten my monitor back after three weeks without it AGAIN. This time they picked it up as I said they had wasted enough of my time already. The kindly picked up and dropped off. Guess what... I still have exactly the same problem.

The letter that came with the repair told me that they had replaced the logic board AGAIN. This is despite the fact that the Apple care guy told me that the issue is with these 24 inch displays doing this blackout thing is with the cable and NOT the logic board. Are these guys even talking with each other? They have now replaced my logic board twice, at god knows what cost to them.

I caught a video of it this time using my iPhone (oh the irony), which you can see here. My brand new 15 inch MacBook pro plugged directly into my 24 inch Apple Cinema display - watch about ten seconds in. Its boring as ****, unless you have this issue:

http://www.mojogroup.com/AppleDisplay/Apple_24_DisplayBlackout.MOV

I pretty much give up now (it has blacked out twice more whilst I have been writing this post). Have no confidence in this product and can see why they have just mothballed them as the 27 inch displays come out. I am going to demand a refund. Being a complete sucker and hoping that the new 27 won't have these issues I will probably go for one of them.

Jan 21, 2011 9:39 AM in response to Motionworks

I have a 24 display that, like the others here note, occasionally blinks off to "black." The problem, as noted by others may be the all-in-one cable, which is not easily replaced by the end user. One thing I am going to try is to wrap the cable with some CABLE SHIELDING to prevent interference. Will this work as a solution? I have no idea but it seems worth a try as I am sure the existing cable is unshielded because it's so tiny in diameter. Why do you shield a cable? See:

http://en.wikipedia.org/wiki/Shielded_cable

There are a variety of products out there to shield cables, stuff like this:

http://www.zippertubing.com/EMI-Shielding-Solutions.aspx

http://www.chomerics.com/products/documents/emicat/pg190shieldwrap.pdf

I am going to give it a try, see what happens. Not the most beautiful & elegant solution, but I think most of use just want this to stop blinking, right? If anybody else tries this I would be interested to know if it makes a difference.

Jan 21, 2011 2:52 PM in response to Motionworks

I am so ****** at Apple after i start using their displays and accessories. I have never seen such, and sorry my word, cheapsh!t quality. Especially the powersupplies for the displays. I have thrown out about 20 of these the last 2years due to faulty electronics. And guess what? Apple doesnt give a rats ***. These arbitary problems have occuring for quite a few years now.

I recommend that EVERYBODY who has ANY problem with the displays start sending a feedback through the site or even email Steve Jobs directly.

What has happend to the Apple quality?!

24 inch LED cinema Display momentarily goes black

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