Mini DisplayPort to Dual-Link DVI Adapter

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Better to use this or a Mini DisplayPort to DisplayPort adaptor?

I have a Dell U2711 with both DVI-D and DisplayPort inputs at 2560x1440. I have been using this DVI-D adaptor for about a month with a new Mac Mini. Works OK except that when the Mac Mini wakes up from sleep, sometimes the monitor has video snow and I have to power cycle it. (Yes, I am running 1.03 firmware).

There is a well-reviewed Mini DisplayPort to DisplayPort adaptor made by Altaz, on Amazon. Normally I would have bought this in the first place, but I was worried that it was not sold by the Apple Store. It's much cheaper with much better reviews than this product.

So should I try the Altaz adaptor? Is it better to go with Mini Display Port to DisplayPort rather than Mini DisplayPort to DVI-D? Is it a red flag that Apple does not sell a Mini Display Port to Display Port solution, but only the Mini Display Port to DVI-D product?

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    Actually it turns out that the mini-display port to display port adaptor has reports of problems with the U2711, so I decided to stay with this mini-display port to dvi-d adaptor. I do get the snow on waking up from sleep a few times a week, I just turn the monitor off, then on and it goes away, so I lose about 20 seconds/week.

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