NVidia 9500GT in 10.6.3

[jbrodiev]

Hello everyone, I've been a forum reader for quite a while now, and every issue I've run into I was able to resolve by searching through existing posts. Now I've hit a problem that I can't seem to get past, I've been losing my hair because of it for about 2 weeks now.

 

I built a desktop PC out of old equipment, and to my surprise it loaded up iAtkosS3v2 with minimal effort and everything important working with one exception. I cannot get the video card to work with acceleration or the be able to change resolutions. The system specs are in my signature. I'm using a DVI to VGA adapter to connect to a 19" LCD monitor.

 

All options that actually result in injected and loaded kexts cause the boot to appear to hang *just* before when the blue screen should show up (I have -v in com.apple.Boot.plist) and the screen flickers indefinitely. I searched here and Google at-large to see if anyone else described a "flicker" and didn't find anything similar to my issue. It is literally that, though. The boot text freezes, there's 1 quick flick, a pause (about 1-2 seconds) and then screen flickers. The text doesn't blur and there's no change to the screen otherwise.

 

I have tried so many things, but I'll try to recall and summarize:

 

• I had initially used AsereBLNv1.1.9, but after some unrelated boot partition issues I am now using PC_EFI10.6. Results are the same with both.
  
• Only remotely successful item: I can set different resolutions using the GraphicsMode boot flag.
  
• Even without any injectors or loaders, I see the NVDAHAL50 load and register in the boot up log
  
• GraphicsEnabler=Yes
  
• With GraphicsEnabler=Yes (and Wait=Yes) I can see the card properly recognized in the pre-boot output.
  
• CoreVidia 1.1
  
• NVEnabler
  
• EFI String (built from a german post about 9500GT to get the NVCAP value.)
  
• I started to try to patch my DSDT, but I can't get very far because IORegistryExplorer never shows an NVCAP value.
  

No matter which method I try (if it will boot at all) System Profiler has never listed the card properly.

 

At this exact moment (EFI String in place, GraphicsEnabler=Yes or No), the system seems to boot fine (no acceleration though) unless I add the card identifier to NVDAResman.kext--this 100% causes the boot hang and screen flicker.

 

Any ideas? I'd really appreciate someone's help with this.

 

Thanks!

[jbrodiev]

You would think I'd at least be able to find the right forum to post this in, but I must have fried too many brain cells trying to find a solution. Can someone move this to the NVidia 9500gt topic or PM me how to do it myself?