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black screen after wake


steftrikia
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Hi everybody,

 

I'm using Lion 10.7.1 on a mini-ITX Asus Moca-ar motherboard, with nvidia 8400GS graphic card, and a T7200 core 2 duo.

Everything works fine except wake from sleep.

 

When I try to wake from sleep, the fans wake up but the screen stays off. I have to force shutdown with the power button.

I can't even access to the computer via ssh.

 

I have tried to :

-patch my DSDT with _WAK fix

-change my graphic card (same problem so I don't think it's the cause)

-change all versions of sleep enabler

-change processor (same problem with a core duo)

 

The computer boots without disabler.kext and speedstep is active. Only the C-states aren't recognized (the command 'ioreg -lw0 | grep CSTInfo' returns nothing)

 

I tried everything from my poor knowledge, and I've read lot of topics about this problem, but I never found any solution.

Now I really need your help please.

Thanks for advance :)

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