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ATI Radeon 5650m Not Detected, Disable i5-460m Integrated?

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Hello all,


I am fairly new to this whole thing. I am attempting to get the ATI Radeon Mobility 5650 working on my HP Envy 14t-1200 CTO, but OS X Mountain Lion (installed via ###### after deleting some IntelHDGraphics kexts) does not seem to detect the card. The BIOS on this computer is very primitive, and I am unable to disable the integrated graphics there.


What are my options to make this work? Would a custom DSDT be able to force OS X to notice the existence of the Radeon card? Can anyone point me in the right direction?


Thanks very much,


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Tried that unfortunately! The card is not detected at all. I think I am making progress on a custom DSDT to fix this... will post here if I have success.

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Post your unedited DSDT here with your IOreg (From the IOreg app) and I will inject your GPU into your DSDT. I just need to know what frame buffer the card uses.


Also if you can not disable the onboard intel GPU it will never work... Sorry for the bad news...

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if u have integrated graphics card, and if her dev id is 0046:8086, don't work, no aceleration


use this to see




and mac os x use always primary graphics card


good hack

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