Blank white Screen after plugging in GTX 680

[jschma]

Hi guys,

I installed OSX Mountain Lion on my new hackintosh, for this I unplugged the gtx 680. For Multibeast I followed these steps: http://www.tonymacx86.com/lion-desktop-support/84330-cant-enter-lion-setup.html#post521938

After installing all updates for OS X i switched the computer off, plugged in the gtx and rebootet. Without the gtx everything worked perfect, now I first see the Apple logo, then just a blank white screen.

Any advices would be really appreciated!
Thanks in advance,
Jan

 

[Middleman]

Hi jschma,

You're getting the white screen because probably your GraphicsEnabler setting in the /Extras/org.chameleon.Boot.plist has been set to Yes.
On the GTX680 card it needs to be set to No.

You could try rebooting into the system with the following commands and see where it gets you:

-v -x GraphicsEnabler=No

OR

-v -x GraphicsEnabler=No npci=0x2000

 

[doolyfarmer]

Same problem with the same board. Looking for a fix. I have the problem with the 660ti.

 

[jschma]

Great, the second one did the job!
But it's still the same issue after rebooting. Is there any way to fix this permanently?

Hi jschma,

You're getting the white screen because probably your GraphicsEnabler setting in the /Extras/org.chameleon.Boot.plist has been set to Yes.
On the GTX680 card it needs to be set to No.

You could try rebooting into the system with the following commands and see where it gets you:

-v -x GraphicsEnabler=No

OR

-v -x GraphicsEnabler=No npci=0x2000

 

[Middleman]

Yes, you need to add this into your /Extras/org.chameleon.Boot.plist in your main hard drive to the one below. To open the file, right-click the chameleon boot plist file and then select Open With > Textedit and replacing your lines with the ones below. Just save it afterwards (this is what my chameleon file looks like):

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>EthernetBuiltIn</key>
<string>Yes</string>
<key>GenerateCStates</key>
<string>Yes</string>
<key>GeneratePStates</key>
<string>Yes</string>
<key>GraphicsEnabler</key>
<string>No</string>
<key>Kernel</key>
<string>mach_kernel</string>
<key>Kernel Flags</key>
<string>npci=0x2000 darkwake=0</string>
<key>Legacy Logo</key>
<string>Yes</string>
<key>Timeout</key>
<string>2</string>
<key>UseKernelCache</key>
<string>Yes</string>
</dict>
</plist>

You probably also need to install the Nvidia GEForce Mac drivers and CUDA drivers from their main website
GEForce drivers >http://www.nvidia.com/object/macosx-304.00.05f02-driver.html
CUDA drivers >http://www.nvidia.com/object/cuda-mac-driver.html

When it is all finished you need to do a permissions repair with Disk Utility. Just go to Applications > Utilities > Disk Utility. Highlight your drive and select Repair Permissions. Then quit and reboot the system. When you finish your system should be fully functional. If you got problems you can always boot in with -v -x.

 

[jschma]

Yes! Works great even without the extra drivers Thx again!