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Help DSDT for Dell Vostro 3350 to Use PCI-e AMD ATI GPU

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I Have Dell Vostro 3350 with Mountain Lion 10.8.3 updated from iAtkos ML2. This Laptop Has two GPU one is integrated Intel HD3000 and the PCI-e AMD ATI HD 6490M. The Active GPU is Intel One. I wish I Could Use AMD ATI HD6490 with the PCI-e. I think It's Better using the lci-e then the integrated one.

Is It Possible using DSDT to activate the AMD ATI HD 6490 ? Can Someone Here Help Me ?

Thank You So Much For Helping me

Here is The Detail :

PCI List




The GPU device AMD ATI which is not connected


And The Integrated Intel HD3000


I Also Attach DSDT.dsl


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u and a million of others use u have intel hd 3000 /4000 and ati or nvidia second graphics....

read about the issue

no way forget it...

try to have the intelhd well working...

good hack

PB Easy Note TM 86 - i5 430 M - H55M - Ram - 6 GB - Alc272 - Radeon HD 5470 512 QE/CI

Lenovo G500 - i5 3230m - HM77 - Ram - 8 GB - Conexant audio - HD 4000

My OS X Files 

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