Massive Graphics Problem

[supermunki]

Hi there,

Sorry if somebody else has already posted a topic about this but i couldn't find one.

I have an Intel Motherboard (845G) 2.0Ghz with an Nvidia Geforce 6200 AGP connected. I have read the 6200 help topic and installed Agpgart.kext, and I then used Ramm's multiple video driver installer to install the Titan Nvidia drivers. I fixed permissions and restarted and instead of getting a good image, or even the black screen that people often get when they do this wrong, i got this, a massively garbled picture consisting of lines of green, blue, yellow and pink. I then removed the kext in single user mode and tried the Natit Nvidia v0.2 drivers (again from ramm's video driver installer) with the exact same result, and which I also removed in single user mode. At the moment I am currently not using any video drivers since I cannot find any usable drivers for my 6200. Can someone please point me to some drivers that will work or tell me what i am doing wrong so that I can use the ones that I have. Also, please note that when I repaired the permissions for both drivers, I did so with chmod -R 755 and chown -R root:wheel, and I also did so with Disk Utility.

Thanks.

[hecker]

I have no idea if those automatic installers work well or not. You might want to try to install the files manually.

Usually, the files NVDANV40Hal.Kext and NVDAResman.Kext must be edited to match your card's vendor and model ID while Titan or Natit only need to be copied to the Extensions folder without further modification.

 

Edit your card values by first figuring out what your card and vendor ID's are. The following applies to both NVDANV40Hal and NVDAResman files:

edit the file Info.plist:

sudo nano /System/Library/Extensions/NVDANV40Hal.kext/Contents/Info.plist

look for the string:

<key>IOPCIMatch</key>
	 <string>0x004010de&0xfff0ffff 0x00f010de&

and replace the existing values with your card's device ID and vendor ID. So if you have a Card_ID=0x27a2 (GMA 950) and the vendor ID=0x8086 (Intel) then you must edit the "0x004010de" part so it looks like this:

<key>IOPCIMatch</key>
	 <string>0x27a28086&0xfff0ffff 0x00f010de&

Press ctrl-X when you're done to exit. Nano will prompt you to enter Y to save or N to exit without saving. Make sure you input Y and press enter.

 

Check if you have Titan and Natit together in the Extensions folder. If so, leave only either the Titan.kext or the Natit.kext and erase the other.

 

Now we can fix the file permissions, erase the current kext cache (it will be created again at boot time) and reboot.

sudo chmod -R 755 /System/Library/Extensions/*
sudo chown -R root:wheel /System/Library/Extensions/*
sudo rm -R /System/Library/Extensions.mkext
sudo rm -R /System/Library/Extensions.kextcache

and reboot.

 

Cheers,

 

hecker

[supermunki]

Thanks for the suggestions, i had not tried the device and vendor id before, but unfortunately no good. I tried it but had the same issue again with an uphuck copy of titan i tried, then i removed it and got the dreaded grey screen of 'please restart' during startup, so then i tried the uphuck natit dual 0.2 which unfortunately brings me to the not so standard but still dreaded black screen after boot problem. Still, thanks again. Will keep trying, any help/ideas would be very much appreciated.BTW, you mentioned Card_ID but all that I could find was Device_ID and Revision_ID, I chose device id, was that correct?

[sonicjam]

i have the same card, i solved the problem with the nvidia universal installer it worked like a charm http://forum.insanelymac.com/index.php?showtopic=61570

[supermunki]

Thanks! This worked perfectly.