EVGA GTX 780 ACX Not working - Stuck on blank grey screen.

[davidm71]

Hi,

I have an Asus Z68 Deluxe with Mt Lion 10.8.4 and all was fine with my GTX 480's. I had a gfx string using chameleon 2.2 2254. I could login with out issues.
So I upgraded with a EVGA GTX 780 ACX and at boot up all I get is a blank grey screen. Sometimes the hard drive light flashes so I'm thinking the driver is
trying to initialize the wrong adapter as the main display as the card has two dvi ports, 1 hdmi, and one dp. I tried all ports except dp without luck. Need dp cable.
Not sure if that will work. Disabled onboard gpu also. I even tried boot flags such as graphicsenabler = no and getting rid of my gfx string. Nothing works.

Setup as an iMac 12,2. Will post my plist files shortly.

Thank you.

 

[Simcules]

hey davidm!

have you solved your Problem? I have the same!

 

[davidm71]

Yeah I solved it. The trick was to change your system type to different kind of mac. Apparently iMac 12,2 wasnt compatible with the driver install. Changing it to another make of Macintosh allowed the kext package to install and after reboot I had picture. Also I didn't need to upgrade my version of chameleon. That didn't matter too much.