8800 GTX support only works if I clear the Extensions caches

[GrosTuba]

Hello

 

I've installed Kalyway 10.5.2 on a brand new partition, install went OK without using any NVinject method.

Instead of using NVinject / NVinstaller, I've used EFI strings (I have made one with my card name and RAM and model).

 

Here is what puzzles me : the only way to get OSX to boot properly and to display the Desktop is to boot in single user mode, clear the kext caches, and reboot. When I do that, my card is fully supported, QE/CI work, everything's fine. The problem is that if I do a Restart (and I assume the kext caches have been rebuilt at this time), I only get a black screen, with no display whatsoever (OSX is working as I can hear the HDD work and then quiet down).

 

I've tried Kalyway's movevideodrivers script, but if I move GE* and NV*, my card (ASUS 8800 GTX 768M, G80 based) is not fully supported (wrong RAM size detected, no QE/CI). So I put these drivers back, but the problem remains: the only way to get the display to work and the card to be fully supported is to first boot in single user mode, clear the kext caches, and reboot.

 

I've repaired permissions using my install disk at every possible step, this does not change anyting. I have not changed the model ID in the GeForce.kext and NVDANV50HL.kext, because everything seems to work with my EFI string. I don't know if this is 100% mandatory or not. I've tried Leopard Graphics Update, but the situation remains the same. I've tried the kalyway's 10.5.3 update package, but then I'm stuck at boot time with the "cannot load com.orByte.drive.PCGenUSBEHCI" message, so this is not an option right now.

 

My questions are:

1) Has anyone already seen this 'only boot with cleared kext caches' situation ?

2) Can something go wrong during kext rebuilding, which I assume occurs during a successful boot after I've cleared the kext caches ?

3) Is it possible that a kext conflict is happenning only when kext caches are being rebuilt, or when a kext cache is already present, but not when the caches have been cleared ?

4) Is it 100% mandatory to insert my own device ID in the Nvidia-related kexts ?

 

Any help would be greatly appreciated, as this is my main blocking point before going further with LAN, sound, and so on. Having to boot in single user mode, clear the caches, then reboot every time can get so annoying.....

 

My relevant specs are:

ASUS P5K-Premium-Wifi (ICH9R chipset), Intel Q9450, 4GB OCZ RAM, three 500GB SATA drives, ASUS NVIDIA 8800 GTX 768M

 

Thanks in advance,

Tuba

 

PS : forgive my long rambling and my poor mastery of the English language