QUOTE (paduck @ Oct 26 2009, 02:41 PM)

I have the Apple GT120 working on a Hackintosh running on the GA EP45-DS3R motherboard using an EFI string on boot. The card is recognized as a true Apple card. I don't have a 24" Apple LED monitor yet, so I cannot verify that it works with the MiniDisplayPort yet. I plan on getting one in the next six months and will post an update then.
I used the OSx86Tools to create a custom EFI string. The NVCAP string I used to generate it was:
0400000000000300000000000000000700000000
I had a lot of help from this thread:
http://www.insanelymac.com/forum/index.php...amp;mode=linearLook especially at posts #39 (for the procedure) and #95 (to get the right NVCAP string).
To blatantly steal from SnarkNL:
- Open OSX86Tools
- Add EFI Strings
- Click on GFX Strings
- Choose Custom GeForce (you need to scroll the list)
- Enter your video card name (in my case: "nVidia GeForce GT120"
- enter memory size (in my case: "512MB")
- NOW choosing your display configuration, choose "Custom..."
- Enter the custom NVCAP string: ("0400000000000300000000000000000700000000")
A hex string will be generated for you to put into the com.apple.Boot.plist file in your /Extras folder. My file looks like this with the long hex string added at the appropriate point marked:
CODE
<?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>Graphics Mode</key>
<string>1344x840x60</string>
<key>Kernel</key>
<string>mach_kernel</string>
<key>Kernel Flags</key>
<string>x32</string>
<key>GraphicsEnabler</key>
<string>yes</string>
<key>device-properties</key>
<string>INSERT EFI STRING HERE</string>
</dict>
</plist>
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Hi Paduck - Thanks for the above information as it was very helpful. I also have the nVidia GeForce GT120 working on a GA-P35-DS31 board. I copied your method above and can now get QE/CI via DVI Port. Many thanks
nVidia GeForce 120 GT:
Chipset Model: nVidia GeForce 120 GT
Type: Display
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 512 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0640
Revision ID: 0x00a1
ROM Revision: nVidia GeForce 120 GT OpenGL Engine [EFI]
Displays:
DELL 1505FP:
Resolution: 1024 x 768 @ 75 Hz
Depth: 32-bit Color
Core Image: Hardware Accelerated
Main Display: Yes
Mirror: Off
Online: Yes
Quartz Extreme: Supported
Rotation: Supported
Display Connector:
Status: No display connected
I also had the same idea as you, with the 24 inch Apple Cinema Display. I purchased it the other week!
When i use the mini display port adapter i can see the boot loader perfect (1920x1200) and after it finished the screen goes black?!!
I thouht u might want to know this information as you said you were getting one in a few months. Also i was wondering if you have any suggestions to get me out of jail ?!!!!!
just to add, if i turn on the machine with both DVI + mini Display port i get back (with or without DVI plugged in)
on the plus side if i turn on with DVI then add the mini display port once the machine is on the cinema display works perfecto ! ( i am on 10 5 6 ipc )
the below shows :when cinema display is plugged in after boot
nVidia GeForce 120 GT:
Chipset Model: nVidia GeForce 120 GT
Type: Display
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 512 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0640
Revision ID: 0x00a1
ROM Revision: nVidia GeForce 120 GT OpenGL Engine [EFI]
Displays:
DELL 1505FP:
Resolution: 1024 x 768 @ 75 Hz
Depth: 32-Bit Color
Core Image: Hardware Accelerated
Main Display: Yes
Mirror: Off
Online: Yes
Quartz Extreme: Supported
Rotation: Supported
LED Cinema Display:
Resolution: 1920 x 1200
Depth: 32-Bit Color
Core Image: Hardware Accelerated
Mirror: Off
Online: Yes
Quartz Extreme: Supported
Rotation: Supported
Connection Type: DisplayPort
many thanks ricci