[10.8.2] Cannot boot normally, Can't pass ATY_Init

[jwmann]

Hi there,
I'm not quite sure if this is in the correct forum but this is my best guess.

I can only boot up using these flags:
PCIRootUID=0 GE=No -x -v

I seem to get stuck at the ATY_Init phase:
http://d.pr/i/ouHR/16yKc2Gr

I've deleted OemSMBIOS.kext from the FakeSMC.kext because it doesn't play nicely with 10.8.2 apparently.

I've found something that's possibly related to my issue here but I'm not sure whether I'm correct:
http://www.insanelymac.com/forum/topic/280447-mountain-lion-gm-ati-radeon-6870-problem/

My Specs should be under my forum name.
Any help is greatly appreciated.

Thanks

Note:
I had to do this in order to be able to install 10.8.2
http://www.tonymacx86.com/mountain-...mountain-lion-6xxx-gpu-issues-fix-inside.html

I used this as a rough guide for my Multibeast
http://www.tonymacx86.com/lion-desk...x-ud3h-b3-ati-6870-clean-ml-lion-install.html

 

[jwmann]

Quick update.
I booted into safe mode like I listed above and then I went into Disk Utility and ran a Disk Permissions Repair on my boot HDD.
I tried a normal boot again and it now passes the ATY_Init phase and then starts showing artifacts on the screen.
It changes to a white screen with more artifacts that looks like this.
http://d.pr/i/slDc/4VG1M2L4

Any ideas?

 

[jwmann]

I was up till 4AM searching on the internet and I found this:
http://www.osx86.net/downloads.php?do=file&id=2908

I tried installing 'ATI Kexts ML Final Sapphire HD6850.zip' but it caused tons and tons of artifacts all over the screen and didn't work properly.
I installed 'ATI Kext only ML Installation Sapphire HD6850.zip' using kext wizard and this worked perfectly.

I'm now able to boot with GE=Yes and without having to safe-boot.

Everything is perfect so far.

I have a feeling this is probably going to be a bandaid fix until the community gets proper drivers for ML.