Enable nVidia drivers

[Cassio]

You can use a patch to enable nVidia drivers by injecting the needed properties in DSDT.

Please see this topic for more information about device-properties http://Olarila.com/forum/viewtopic.php?f=18&t=154

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

Gigabyte motherboards

nVidia 9600 GT 1GB PCI0

[giacomoleopardo]

Hi cassio,

I edited DSDT as you posted: in my system profiler it shows up as "nVidia Quadro NVS 295,,,,,256 Mb"

Of course i injected proper name and rom revision, but my question is: what about those dots before "256"?

Am I missing something in dsdt editing?

my rig:

zotac z77itx

intel i7 3770T

nVidia Quadro NVS 295

Adding efi string (without DSDT edits) system profiler shows the card name correctly, but I prefer DSDT edit rather than efi string in org.chameleon.boot.plist.

Any ideas?

[pernacabeluda]

Hello,

you probably forgot to adjust the buffer size, just leave it blank (remove 0x?? from Buffer)

                                "model",
                               Buffer ()
                               {
                                   "nVidia Quadro NVS 295"
                               },

[giacomoleopardo]

Hello,

you probably forgot to adjust the buffer size, just leave it blank (remove 0x?? from Buffer)

                                "model",
                               Buffer ()
                               {
                                   "nVidia Quadro NVS 295"
                               },

 

Thanks, man, that did the trick!