30" HD Cinema Display with Mini Port to Dual Link DVI Adapter

I was able to make it work without flickering. It seems the problem is that the adapter needs more power than can be provided by standard USB port. I connected the USB cable that powers the adapter to USB charger for iPhone/Ipod (the USB plug you connect to the computer). The charger allows for higher current 1.0A instead of 500mA and that solved the problem of flickering. Of cource for USB ports on the 30' display to work you have to connect them to the Mac (use extension cable for the keyboard).
So far (a few months) it works.

Hi,
i was so happy reading your comment and immediately tried it out with the charger from my iPhone 3GS.
Unfortunately *it did NOT cure* the flickering on my 30" ACD. I hope AppleCare will find a solution soon. They are working on the issue already for weeks.

Nothing worked for me either. I just bought MBP core i5 yesterday and Mini display to Dual DVI (firmward 1.03) yesterday. All software is up-to-date. Same problem with flickering blue and green lines over dark backgrounds (especially black). Very annoying.

A guy from Apple support just called me and told me they are sending me a new adapter with fw 1.0.3, which should fix the flickering lines on dark areas issue...

I'm a little bit skeptical, but I will post an update as soon as I receive the new adapter.

See the post right before yours. Someone is running 1.03 already and still has the problems.
Also, i find it funny, that we can't just flash a new firmware onto the adapters ourselves. Would save quite some resources compared to sending adapters back and forth again and again.

I received my replacement Dual Link DVI adapter a few weeks ago, and noticed that it was also fw 1.02 just like the previous one I had issues with. So I was very suspicious...

But, after using the new adapter for a few weeks now, I have seen the horizontal lines on black areas only once, and they disappeared very soon. And I'm staring at the monitor about eight hours per day...

It seems like there are just lots of bad cables around, and the firmware version is not important.
For now I consider this issue solved, at least for me.

If the flickering problem appeard one time with your new adapter (which is still fw 1.02), it means that the problem is not yet solved on your computer !

To my side, since I updated to 10.6.3 (since avalaible), the flickering problem disappeared.

I have updated to 10.6.4 since avalaible, and I hope the flickering problem won't come back on my comptuer.

To be sure, I will change my wallpaper to a dark one (dark images proposed by apple by default) to test it !

Stay tuned.

Hello NPGAUTH,

Here is a topic in which I describe the flickering problem I encoutered with my Mac Mini End '09 :
http://discussions.apple.com/message.jspa?messageID=11039234#11039234

And here are some photos of my screen :

http://img51.imageshack.us/i/img0037g.jpg/

http://img696.imageshack.us/i/img0038x.jpg/

That's right, a screenshot doesn't show the problem, you have to take a photo of it.