GTX580 - OSX 10.8.2 - Dual monitors issue

[madebyboris]

Hey Everyone,
Having some problems with my nvidia GTX580 and mountain lion 10.8.2. Cant get the dual monitors to work. Cant find anything in the forums that fixes it.

Heres a little summary of details
boot - boots on left screen, through chimera, and then left screen goes blank and right screen is operational as normal. In the boot i get a Nvidia ROM patching failed. have searched the web and cant find much on this.
Fixes - I have updated to the latest nVidia drivers for 10.8.2. I have tried GraphicsEnabler=No and after boot i get two blank screens. I have tried combinations of DVI and HDMI cables through the different ports.

Hardware:
MB: GA-X58A-UD3R-2.0 - FE
GPU: Palit GTX580 3gb

Anyone have any ideas?

 

[madebyboris]

just bumping this back up.
Also, besides this there are no other problems with install. everything else is fine.
Cheers

 

[DesertShadow]

I'm having this issue as well. Only HDMI works on boot, DVI works if I unplug HDMI after boot. OSX 10.8.4 Nvidia GTX-580
MSI P67-GD65

Everything else seems to work great! 3d graphics works well too

 

[fukmondo]

Maybe it is related to resolution? I have similar problem
http://www.tonymacx86.com/graphics/...go-2560x1440-1920x1080-resolution-all-ok.html

 

[mrbubbles]

If the resolution issue above is not applicable, try setting your internal GPU as the primary/init first in BIOS and then connect your two displays to the GTX580. You won't get any display output until OS X initializes, but it should work well. When doing upgrades or testing, just connect a display to the Intel integrated graphics.