10.6.5 update and Dell GTX 260 1792MB Video Card troubles

[Spelljammer]

I just applied the 10.6.5 combo update for my system. Since initially installing 10.6, I had had success with using a Dell GTX 260 1792mb video card that came with my alienware desktop. I had full working graphics by adding my device ID into the 2 following files: NVDAResman.kext and NVDANV50Hal.kext. This worked well for me for each 10.6.x update. I would install the combo update, and before the restart, reinsert the device ID into the new updated files.

 

As of 10.6.5 though, the format of the info.plist has changed substantually in the NVDAResman.kext, and I no longer see the device ID section / entries in the file. I seem to have the correct resolution for my monitor, but QE/CI don't seem to be working. my screensavers do not work correctly, and games such as WoW and Starcraft II won't launch.

 

Below is my entry for Graphics / Displays in System Profiler. I'm hoping that one of the gurus out there have time to take a look over the new info.plist file in the 10.6.5 NVDAResman.kext and possibly provide some help and/or guidance for me, to resolve my issue. Any help and suggestions would be greatly appreciated!!

 

nVidia GeForce GTX 260:

 

Chipset Model: nVidia GeForce GTX 260

Type: GPU

Bus: PCIe

PCIe Lane Width: x16

VRAM (Total): 1792 MB

Vendor: NVIDIA (0x10de)

Device ID: 0x05ea

Revision ID: 0x00a1

ROM Revision: nVidia GeForce GTX 260 OpenGL Engine [EFI]

Displays:

Display:

Resolution: 1680 x 1050

Pixel Depth: 32-Bit Color (ARGB8888)

Main Display: Yes

Mirror: Off

Online: Yes

Display Connector:

[Dellmantt]

Did you backup before installing update? Especially Extension folder!

 

If not extract the older kexts from the 10.6.4 update (Pacifist)

[Spelljammer]

Did you backup before installing update? Especially Extension folder!

 

If not extract the older kexts from the 10.6.4 update (Pacifist)

 

 

I do have a backup, but my reason for updating to 10.6.5 was the performance gains in gaming graphics that's listed as one of the improvments lol, though I guess it may be my only option at this point.

[Dellmantt]

I do have a backup, but my reason for updating to 10.6.5 was the performance gains in gaming graphics that's listed as one of the improvments lol, though I guess it may be my only option at this point.

Well at least you can get your video hardware acceleration back until you can work out how to do it with the new kexts

[dothacker]

the gains mostly work with the cards that are natively supported by mac os x, i may think so...

[cyrilmtl]

I have the same GTX260 card from dell in my hackintosh XPS9100, running well in 10.6.4, I am holding the 10.6.5 update until somebody find a fix.