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VRAM Problem

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hi all,
i have a little problem. When i start my laptop, my bios found 8 mb of video memory (shared), so video acceleration doesn't works because for enable quartz extreme you must have 16 mb video memory!

Some people have the same problem?

I had the same problem in linux and i fixed it, i modified /proc/mtrr and i enable 64 mb of shared video memory! This work prefectly, but in Darwin i don't know how to modify mtrr.

There's AppleMTRRSupport.kext in Extension but i don't know how to modify it for adding video memory...
help me please! ;)

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