I am just selling my radeon cards and going geforce... that will solve my problems real fast.Got two 680 4GB on the way and head hunting for a third one... lets hope I find one so I can just put them all underwater and start to game a bit.
My DP errors lessened considerably (Used to have them like daily and now once or twice a week) once I started feeding the adapters direct 1A usb power from an outside source other then the motherboard. I have a electrical outlet serving that purpose.
I have Yamakasi Catleaps and an Achivia Shaiman with DP Active Display port adapters to get Full 7680x1440 support. The adapters don't wor that good and get disabled so buy ones with DP all ready in them and let them be the side panels so the middle ...
If it helps I got Two Catleaps and a Shimian and sometimes I get tearing in video playback but otherwise in games no errors.Using the native DVI and two DP to DVI Active adapters.It's strange, could it be a PSU problem? Have you tried a different one...