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Dual GFX Card no screen detected

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    Dodo vé pa dir i dor !

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Hi there,

Just installed OSX Lion DP4 for testing purpose, my config is :
X58A-UD5, i7 950 @ 3.2 Ghz,
12Go Corsair Dominator DDR3 1600 @ 1333
Nvidia (Asus) GTX 285
Nvidia (Asus) GTX 275.
-> Chameleon RC5 rev.1005

Install went OK everything working fine exept for the two graphic card.

On SL i used to do this with a custom gfx string but it doesn't work with Lion.
I also tried ATY_Init (32 and 64 bit) but the result is always a black screen.

When I log in using screen sharing i can see that both graphics cards are well recognised, but my monitors stays black and System Info tells me no monitor detected.

Hope we find a solution for this untill Lion comes out for real.

-> For those asking what's the point having two graphics cards I will already answer telling that i use DaVinci and Avid MC5 (DaVinci needs two GFX to work properly and MC5 can have a third screen for full screen monitoring).
I planned to test DaVinci with two GTX570 and a small third one later this summer :-)

Thank's for your help !




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just wanted to let you know, this sub forum is for Mac OS X running on genuine mac computers. To obtain better results, you may want to post in the hackintosh/OSx86 section for 10.7 Lion here,

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