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Some New MacBook Pros Causing Flickering in 24-Inch Cinema Displays?

I wonder if this is related to the problem I'm having with my mini Displayport cable and my Dell U2410. I have now tried two cables (mini Displayport to Displayport), which, when connected, produce a grainy image on screen (almost like the contrast is turned way-up).

Interestingly, I have no problems using Apple's mini Displayport to DVI adaptor.

I have talked to Gefen about this (one of the cable's manufacturers), and they have yet to hear about it from anyone else.

Since the image is good with Apple's adaptor and not with the 3rd party cables, I wonder if there's some hardware DRM going on here that's new to the Thunderbolt port. I did not have a problem with the mini Displayport of a 2010 i5 MBP that I owned for a short time before my current machine.
 
FuNGi said:
That's cool. I'm just wondering if it really wasn't "always this way" with Apple products or we just now have sites to complain on about a 0.0001% defect and it seems larger. Blaiming China is easy, finding good data to prove it is not.
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All to often the chinese will rewrite the tech specs of a product trusted to the then make in an effort to make extra profit and to sabotage, do more research please.
 
zin said:
Apple really need to stop letting these things happen. When did all of these quality assurance issues start arising? It definitely wasn't as common in, say, 2008.

Don't they have a "Chief Officer for Quality Control"?
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If they do he was not present when the imac was being developed.
 
MichaelTheGeek2 said:
All too often the Chinese will rewrite the tech specs of a product trusted to them then make an effort to make extra profit and/or sabotage [the company].. Do more research please.
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I tried to edit your reply slightly but it's hard without good strike through text options in this site. It's kind of funny how you make such a blanket Chinese-conspiracy stero-type and then tell me to do research (at least that is how I interpreted the last clause).

I agree that some sort of technological espionage has occurred with Chinese firms but your statement is a bit odd. Don't you think Apple might notice if the Chinese swapped cheaper components to make a profit? Don't you think that retaining multi-million or billion dollar contracts over the long-term would prevent such an idea from ever being enacted at major part manufactures? I can't believe I spent so much time replying. I'm going outside now....
 
FuNGi said:
That's cool. I'm just wondering if it really wasn't "always this way" with Apple products or we just now have sites to complain on about a 0.0001% defect and it seems larger. Blaiming China is easy, finding good data to prove it is not.
Click to expand...


I think the defect rate is much more than 1 out of 1,000,000 (million) products.

I do not know what it is, to be honest, just a feeling that its more than 1 defect per 1 million units shipped.
 
My late 2009 15 MBP flickers on occasion. Never took it in to be looked at because it's a very rare occurrence, but it does happen. Not that that adds anything to this post :p
 
Because if you read his post you would realise the only time he gets free dell is when he asks a favor of his ex-roommate
 
TomCondon said:
Because if you read his post you would realise the only time he gets free dell is when he asks a favor of his ex-roommate
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ok.. and your point was? either way he has the option to get the product for free and yet acts like an elitist when there are other people out there who would love to have that kind of privilege. hell.. he can even just give it as a present to someone he personally knows who is financially struggling.
 
It's been happening for ages… big deal...

Hi,
I've had this problem with my Cinema Display 42" and 13-inch, Mid 2009 science the cinema display came out. Happens about twice a day and looks exactly the same as this problem. Don't try an blame this on the 'New' macbook pros or 'thunderbolt' because its simply been a problem for years, and really calling this a problem seems a bit of an overstatement, it's not a big deal…

Mike
 
I seem to recall more than a few folks here who wanted to totally get rid of USB and Firewire now that Thunder-something" has arrived and is so perfect.:rolleyes:
 
i guess im one of the luck ones.i have no flickering or flashing or blackouts or anything....13" i5 with 24" ACD is working perfectly for me.:D

most likley all these people have faulty ACD's
 
LarryC said:
Control Issue, jeez, why is it that people act as though they have the right to control others and tell them how they should be living their lives. You sound like you are blaming this guy because some kid doesn't have a new and giant monitor to use in school. Grow up and do it yourself.
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where on my post did i demand him/her to do anything? i was intially trying to get an understanding of why would someone pass up something like an opportunity to get a free product. even if that person doesn't want it for him/her-self, then fine.. go and give it to someone who would appreciate it. don't act like you're too good for something tho by saying you won't even consider it just because it doesn't have an apple logo on. i didn't mean to offend, but that kind of attitude and outlook in life to me is like an elitist.

but anyway.. i apologize for derailing this thread. please continue on with the actual topic
 
radiohead14 said:
where on my post did i demand him/her to do anything? i was intially trying to get an understanding of why would someone pass up something like an opportunity to get a free product. even if that person doesn't want it for him/her-self, then fine.. go and give it to someone who would appreciate it. don't act like you're too good for something tho by saying you won't even consider it just because it doesn't have an apple logo on. i didn't mean to offend, but that kind of attitude and outlook in life to me is like an elitist.

but anyway.. i apologize for derailing this thread. please continue on with the actual topic
Click to expand...

You are correct. I should not post anything that would derail the OP's thread. I will delete my post. Have a great weekend.
 
Can't it be the display?

Same (or similar) thing for one at work, but that is on a previous generation Core i7 MacBook Pro connected to the 24" Cinema display. Tried to record the problem using QuickTime Player's screen recording. Was thinking that if the flickering gets caught there it's probably the computer's graphics, if not it's the display.

Nothing got caught in the recording, and also tried to connect the display to an older MacBook Pro with Core 2 Duo, and eventually the problem happened there too.

So, maybe it's some of the Cinema Displays that got issues and not the new MacBook Pro's?
 
I have this blackout problem with my 30" ACD, which I usually use without the MBP's own display. The ACD starts flashing off, on, off, on, every couple of seconds. I haven't figured out what to do about it other than switch to the MBP screen alone for a while, then try the ACD again later.
 
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3 like Mac OS X; nl-nl) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8F190 Safari/6533.18.5)

Late 09 imacs had the same flicker issues, firmware fixed it, just wait for an update.

For thusfar enjoy you macbooks as macbooks :)
 
Similar type of behavior affected the initial version of the Mac mini.

Output thru DVI caused flickering screens on some models. The cause?

Underclocked GPU. If the GPU was to run at a higher rate where the issue did not occur, the machine would overheat.

So, with a switch to a different graphics chip, are we possibly seeing another way Apple tries to cut power/heating with the unit? I'd be interested to see if the issue occurs when booting in to Windows, and possibly flashing the graphics chips if possible, to the latest firmware.
 
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