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VAIO PCG-11211L Black Screen (Geforce 310m) ML 10.8.2

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I got this nice machine from a friend. After trying to install ML on it for a whole day with no success I decided to clone my already working 10.8.2 installation running on a GA-Z77X-UD5H onto a disk and plug it into the Vaio.


It boots without a kernel panic but to a black screen. If I boot verbose I can see the text freeze after the [PCI configuration begin]


I know the machine is up and running cause there is disk activity and it responds to keyboard strokes. I booted it into SUM and although the text was frozen on the screen it rebooted when I typed "reboot" and hit Enter.


So, I'm pretty sure this is a GPU detection issue.


It has an i5 CPU, Geforce 310m (ID=0x10DE0A75), Atheros Wifi, Realtek Audio, and a touch screen.


So far I have tried multiple boot variables such as PCIRootUID=0/1, npci=0x2000/3000, GraphicsEnabler=Yes/No, UseKernelCache=Yes/No both with and without -v/-f/-x/-r . But the result is always a black screen right after the [PCI configuration begin]


I have tried one NVEnabler.kext and it gives me some scrambling colours on the screen. This is the only way I'm able to see anything on that machine's screen.


I have also tried adding the device ID "0x0A7510de&0xffe0ffff" to both NVDAGF100Hal.kext and NVDANV50Hal.kext to no avail.


Any ideas?


Help is really appreciated.



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I`ve the same problem in my Samsung R480 with 310m and for my works, write in chimera BootLoader PCIRootUID=0, after you boot go to /Extra folder and open the file org.chameleon.Boot.plist and put:




This its for every time you boot don`t have to write again PCIRootUID=0.

I hope this works for you, sorry for my english lol.

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So couple of days ago I gave it another shot with a 10.9 myHack USB stick and it worked!


All I had to do is to boot with PCIRootUID=1. Same flag was useless with 10.6, 10.7, and 10.8 installations. 


The machine booted and OS X installed just fine. Except for CI/QE which don't work still. No graphic acceleration.


The GPU is nVidia GeForce 310m with 512MB of VRAM


Any clues on how to get CI/QE work ?

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