Been having trouble since day one with this Dual DVI cable and my 30 inch Cinema with blinking. Let me describe that since this topic is confusing with other display issues. By blinking I mean like pulling the cable off and reinserting it very fast like a power surge. Mostly coming out of sleep mode, I get the blink on the 30 but not the laptop screen. so stopped at the Apple store and they exchanged mine and it seems to be working with no display issues.
If you read the reviews on this cable on the Apple store site they are not that positive. So if your having some issues with your externals this maybe the cause. Fingers crossed it stays this way
If you read the reviews on this cable on the Apple store site they are not that positive. So if your having some issues with your externals this maybe the cause. Fingers crossed it stays this way