periodic Dual-link display problem with new adapter

Has Apple EVER made a public comment on this? It's outright disgraceful.

This item should be pulled from the shelves until they either fix the issue, or put out an official statement of what the issue is, and what's being done to resolve it. If it requires replacement of any existing unit, sold to date, so be it.

Could someone/people please verify; does this problem exist the Apple displays, e.g.

Apple Cinema HD Display (30" flat panel)

??

I would not assign ulterior motives to apple, but I could understand their disinterest if their own 30" shows no problem with the dual-link display adapter.

cheers,
Andrew.
a grumpy, formerly happy, Mac owner

i have a mini, not a MBP, but i can confirm i had bad pixel noise issues with 30" cinema display at full res (2560x1600), and i exchanged my mini-displayport-dual-link-dvi adaptor at the apple store for one with the new 1.02 firmware revision and the pixel noise problems are fixed. yay. i was happy for a day. but... now i noticed that there is a SUBSTANTIAL lag time in screen response, e.g. typing or moving windows around quickly.

B-sh-t
This adapter don't work in bootcamp (windows) !!!
There is distortion again!!! well not the same but there is it in windows!!!

So OSX/Windiows.. same shot.
The adapter is the problem. or the mini-displayport itself ??

So Apple when You are going to recall my macmini for new model with dual link DVI or normal display port??

Waiting!!!!

Message was edited by: sand0

Also when You think that image is ok.... well then You start to see pixels all over (You can notice them on dark backgrounds) that turning on/of randomly. hundreds of them (for the all 30" surface).

I'm not sure but I even think that the refresh ratio is LOW as it seams that some times You can se the lcd flickery!!!!

and one tip for apple and all of You guys.

Shift Controleject then push some arrow and the LCD reset to normal.
No need to shake Your hard drives (i.e. moving cables and putting them back)
As shaking is bad for Your data 🙂

Message was edited by: sand0

Hi again,

I've been using the adapter for a week now.

Im using a new macbook pro 13.
I have firmware 1.01 on the adapter.
My monitor is a HP LP3065.
I have a pc connected on first dvi port to the monitor and using the display link to the second dvi port of my monitor.
I have alternated between using the usb ouput on the adapter and to leave it empty.

When switching between my pc and mac on the monitor or when the monitor goes to sleep i will trigger a bug. And thats the static thats all over the screen, the screen is still visible but it lacks a lot of information, my guess would be that one of the dvi channels are outputting static and one is working. This is rather easy to "fix" i just press cmd-option-eject to enter sleep mode, and a couple of seconds later press a key on my external keyboard. After that the image is ok again.

Sometimes i've noticed a quick glitch on the screen, a quick jump, so quick you harldy notice it, like it losses sync but finds it directly again. I would think i've seen this two or three times in a week.

I see no other problems, and are rather happy with the setup, even if its irretating when I switch between the mac and the pc. I rather have the 1.01 fw then the 1.02 that reports say is slow.

Also Ive tried to place the dvi cable away from other cables since I want no magnetic interferance from my power cords. I wonder if bad dvi cables can be one issue regarding this adapter. You that have problems please test if a more optimal cable placement would help somewhat.

All and all its a expensive adapter and its irretating when it losses sync when switching inputs, but its good to use a 30'' monitor on the little mbp 13 it makes work so much easier.

Why does it say

This question is answered. "Helpful" answers available: 0 . "Solved" answers available: 1 .

at the top of this topic? It's not solved.

i agree. not solved until slowdown issue with 1.02 adaptor is fixed. orig poster must change, afaik.

Despite reading all the bad news here, I bought the $99 Displayport / Dual Link adapter today. It's used with a refurb'd Macbook 17" 2.66 Unibody purchased ~2 weeks ago from Apple directly. The Apple 30" display was purchased ~2 years ago, maybe a bit longer. According to system info, the cable has firmware 1.01. After 6 hours of use, no problems so far. Running 10.5.7. Currently the Macbook is 9600 mode, but the fan is working pretty hard. I'm going to switch back to 9400 and see how it does. Oh, also running in clamshell mode.

After months of this nonsense I think we finally have a solution. We are dumping the $99 Apple adapter entirely and going with a $15 Mini-DisplayPort to DisplayPort cable ( http://www.cpustuff.com/Mini-Displayport-to-Displayport-cable-assembly-2-Meter-p -16240.html). It requires us to buy new 30" displays (Dell 3008FPW) at $1399 each to replace some of our older DVI-only displays, but we have already wasted more than that attempting to help Apple resolve this issue.

I spent tens of hours with tech support and customer relations, but all I ever got was that engineering was working on it. It wasn't until I threatened to return all of the unibody Macs my company has purchased and demand a full refund that anyone at Apple took this seriously. They then FedExed me replacement adapters and called regularly to check if they were working. They weren't, but luckily the cable I mentioned above was just released. Otherwise I was on the verge of placing a 5-figure order with Dell to replace our entire fleet of unibody MB Pros. If Apple refused to take the MB Pros back they would have heard from my attorney.

Apple customer relations offered to pay for the new cables (what a joke, they are $15), but withdrew the offer because they are not sold on the apple.com site. Perhaps they should be.

While they are at it, perhaps they could hire someone who knows how to run a proper hardware/software QA environment. There was clearly no such person involved in the development and release of this adapter.

I'm considering an upgrade from a 2006 MBP C2D to a new 15" MacBook Pro (MBP) with dual graphic cards (3.8GHz and 512MB VRAM). I have a Dell 30" monitor 3007WFP with DVI input that my current MBP drives easily. Reading this thread certainly makes me think twice about this purchase.

My Questions:
1) I'm pretty sure I need the Dual-link DVI adapter (for mini-displayport), is that true or can I use the standard one? The Genius at my local store says I can use the standard adapter (which I doubt.)
2) You guys have clearly described lots of problems with the dual-link (apparently not fixed with a 1.02 firmware update). What I'd like to know is has anyone have successfully driven the 3007WFP using a 15" 2009 MBP without problems?

Many thanks in advance.

I'm not sure if the problem described really originates from the Dual-dvi-adapter, or if it's a hardware/Mini-Displayport problem of the Macbook Pro. Please let me know if the Dell 3008FPWs, once arrived, work fine, when connected by the Mini-Displayport-to-Displayport-cable.

I'm considering buying a Samsung 305Tplus, but I'm not sure if I should switch over to a solution omitting apple's famous Mini-Displayport-to-Dual-dvi-adapter...

We have the same problem with Samsung 305T monitors so the problem is somewhere in the Apple adapters or software, not in the monitor.

mz2009 asked: +Please let me know if the Dell 3008FPWs, once arrived, work fine, when connected by the Mini-Displayport-to-Displayport-cable.+

For what it's worth, I am running a Dell 3008FPW with the latest Mac mini using a Mini DisplayPort to full size DisplayPort cable I bought from a company called Circuit Assembly. The combo has been working great.