LVDS is a protocol that works based on the difference between lines. If the cable is messed up, the screen can become distorted. Old Macbooks use LVDS.
Retinas & Airs use displayport. DP is a protocol that either works or it doesn't. If the signal is not there, you see no image.
Even with LVDS it is almost never the cable, but with DP, if you see the image at ALL - IT AINT THE CABLE!!!!
This entire crap that it is the cable is an internet fairytale, based on wishful thinking that the problem is a $5 one and not a $100 one, and spreads like wildfire. You will be disappointed when you waste time and money replacing a cable that is not at fault.
Please read and learn; it will become evident why you cannot have a distorted image from a malfunctioning displayport cable.
