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Old 02-10-2010, 11:16 AM
multidanze multidanze is offline
Cheetah
 
Join Date: Feb 2010
Posts: 10
SnowLeo - no graphics/ethernet

Hi!
I had Leopard 10.5.8 on my pc and everything were working fine. I installed Snow Leopard by Hazard on a new HD and i have no graphics and ethernet.

mobo: Gigabyte GA-P35-DQ6
cpu: Intel C2D E6850
graphics: NVidia 7900GS

Can someone help me?
The resolution that i get is 1024x768 and both screens display the same thing!
No ethernet at all!

Thanks!
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  #2  
Old 03-13-2010, 05:21 PM
S3dr1ck S3dr1ck is offline
Cheetah
 
Join Date: Mar 2010
Posts: 1
I had similar problems with my GTX260 on SL 10.6.2 with my GA 965P-DS3. You could try the following which worked perfectly for me:

Download "EFI Studio ". Start it and select your Graphics Card from the List and click "add". A window should pop up showing two text areas. The upper area contains the boot.plist configuration for the Graphics Card while the lower area shows the HEX-String for your GPU.

Both information is automatically written in your boot.plist by doing the following:

Select boot.plist editor from the EFI-Studio menu (with this editor you don't have to care about permissions...this won't work with textedit unless you sudo).

First you copy the whole upper text (the Configuration) from the popup Window and overwrite the contents of your opened boot.plist with it and save it.

Next you press the button at the bottom of the popup window saying "write string to boot.plist" or smthg. This should insert the HEX-String to the correct position in your new boot.plist.

Your boot.plist should now consist of the configuration data that was generated in the first popup window and the HEX-String itself which should be beginning with <string> and ending with </string> tags.

If everything looks good save the boot.plist and reboot your system. Now you should have decent graphics available=)


!!!IMPORTANT FOR GTX200 SERIES USERS (and maybe others aswell?)!!!!:

If your Installation boots up but then your monitor goes to sleep / you get black screen you fix this by doing the following:

Boot your install with -s param for Single User Mode. Mount your HD with "mount -uw /". Create a Folder for backup kexts (eg mkdir /kextbackup) and move the kext files beginning with NV to this folder. (mv ...pathToKexts../NV* /kextbackup/). If you get any errors do a chown -R root:admin on the folder and try again. Delete the kext cache folder with rm -rf.

You may now type "exit" and a few seconds later you should see your SL Desktop but in 1024x768 and without real GPU support.

Now follow the guide above to edit your boot.plist but dont't reboot yet.

You have to move the /kextbackup files back to where they belong. You can do this with terminal as root (enter sudo -s to get root permissions) so you dont have to reboot to single user mode for this.

You sould now use the permission fix tool from the EFI-Studio Admin menu to make sure you didnt mess up permissions on the kexts.

Reboot and experience the full SL Video Power!:P

Remember, if anything went wrong and you get a blackscreen again after reboot, you can always move the NV* Kexts to a backup location in single user mode and get your 1024x768 desktop back after reboot! dont forget to delete cache.

Have Fun


And by the way... I need help with the 965p onboard LAN after I installed MyHack from empire-efi it's dead.
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