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Sapphire HD 7870 XT can't reach Desktop in 10.8.5 and Mavericks


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Hi, my HD 7870 XT (ID 679e) hasn't had much problems before (10.8.3 & 10.8.4) except the white screen bug that can be bypassed with sleep trick and/or UEFI bios (it's already flashed). After updated to 10.8.5 using App Store, my rig just hangs at the same spot (no white screen at all). It happens also in Mavericks DP1 and GM. It can boot in SafeMode btw.





I have no more idea after countless reboots with different tweaks. I use the same DSDT as before that contains device ID injection for the GPU. Booting without DSDT didn't help also. What I've done so far with Clover bootloader;


- Disable ATI injection.

- Delete all ATI kexts.

- Enable auto login.

- use FBrotate.

- Playing with frame buffer (Aji, Chutoro, Hamachi, Dashimaki, and Futomaki)

- Switch between DVI and HDMI ports.

- Roll back kexts from 10.8.4.

- Update Clover from r1958 to r2236.

- Use Chameleon r2266.

I've checked its device ID is already in AMD7000Controller.kext and AMDRadeonX4000.kext. It just doesn't make sense to me when it can boot finely Mavericks Recovery HD which seemingly it should work on the other side of installation.
Thanks in advanced :)
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