That DSDT editing can be skipped by using the following file:
You'll have to put the file in the "Modules" folder in your "Extra" folder and add the following key to the org.Chameleon.boot.plist:
It is the Graphics Enabler Module from meklort - when I use it it doesn't give me messages like "No Kext loaded". Besides, why use the GMA 950 kext? Isn't the GMA 3150 based of the X3100?
When I use the X3100 kexts, I get the same Effect, but it somehow enables the Backlight of my Display. And wouldn't it be worth a try to edit the AppleGraphicsPowerManagement.kext? It improves the performance of Graphic Cards noticeably.
http://www.hackint0sh.org/f180/264812.htm <- It seems that this guy was on the right way, sadly he got now response. But my GMA3150 gets recognized as a PCI device as well, in the PCI root 0?