Sorry it didn't work for you. Do you have HDMI enabled? Maybe that did the trick for me together with the sysdef?
Gigabyte Z8ZM-D3H, I5 4750S, 4600
I have this fussy screen only with mine on my old monitor an LG W2261 os x is as solid as a rock
only when I try to use my new monitor the dell s2440L it starts this fuzziness thing.
It works ok on the dell at 720p as soon as you up to 1080p intermittent fuzz lots making the monitor
unusable both are plugged in via an An HDMI cable and there is nothing wrong with the dell on a win based machine???
Any ideas
Sorted
DVI To HDMI
don't think vga will work as I'm not sure os x supports via anymore
I got nothing out of the vga port
Good luck