
Please see this topic for more information about device-properties
http://www.insanelym...howtopic=228733
To find out where to insert the patch, you can use IORegistryExplorer.

Sample code to be inserted (into P0P2 in the above example)
Device (GFX0)
{
Name (_ADR, Zero)
Method (_DSM, 4, NotSerialized)
{
Store (Package ()
{
"@0,compatible",
Buffer ()
{
"NVDA,NVMac"
},
"@0,device_type",
Buffer ()
{
"display"
},
"@0,name",
Buffer ()
{
"NVDA,Display-A"
},
"@1,compatible",
Buffer ()
{
"NVDA,NVMac"
},
"@1,device_type",
Buffer ()
{
"display"
},
"@1,name",
Buffer ()
{
"NVDA,Display-B"
},
"NVCAP",
Buffer ()
{
/* 0000 */ 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00,
/* 0008 */ 0x1C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0A,
/* 0010 */ 0x00, 0x00, 0x00, 0x00
},
"NVPM",
Buffer ()
{
/* 0000 */ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 0008 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 0018 */ 0x00, 0x00, 0x00, 0x00
},
"VRAM,totalsize",
Buffer ()
{
0x00, 0x00, 0x00, 0x20
},
"device_type",
Buffer ()
{
"NVDA,Parent"
},
"model",
Buffer ()
{
"nVidia GeForce 9800 GTX"
},
"rom-revision",
Buffer ()
{
"nVidia GeForce 9800 GTX OpenGL Engine"
}
}, Local0)
DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
Return (Local0)
}
}
In some motherboards the device where GFX0 resides is not present in DSDT, so you need to insert it as well (into PCI0)
Device (PEG1)
{
Name (_ADR, 0x00010000)
Device (GFX0)
{
... same as above
}
}
Sample patches to be applied using DSDT Editor:
Asus motherboards
nVidia_9800_GTX_512_MB.txt 2.59K
153 downloadsGigabyte motherboards
nVidia_9600_GT_1GB_PCI0.txt 3.45K
164 downloads



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