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HDMI and Dual Link on GT 740


M_//T_//ias
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Decided to boot with a clean config in Clover and found some interesting stuff via IOREG.

 

HDMI via GT 740 is working, both to a Sony Tv and Dell Monitor.

 

Look at the NVCAP

Device (GFX0)
                {
                    Name (_ADR, Zero)
                    Method (_DSM, 4, NotSerialized)
                    {
                        Store (Package (0x40)
                            {
                                "AAPL,slot-name", 
                                "PCI Slot 0", 
                                "AAPL,DualLink", 
                                Buffer (0x04)
                                {
                                    0x01, 0x00, 0x00, 0x00
                                }, 

                                "@0,AAPL,boot-display", 
                                Buffer (0x04)
                                {
                                    0x01, 0x00, 0x00, 0x00
                                }, 

                                "@0,compatible", 
                                Buffer (0x0B)
                                {
                                    "NVDA,NVMac"
                                }, 

                                "@0,device_type", 
                                Buffer (0x08)
                                {
                                    "display"
                                }, 

                                "@0,connector-type", 
                                Buffer (0x04)
                                {
                                    0x00, 0x08, 0x00, 0x00
                                }, 

                                "@0,port-number", 
                                Buffer (0x04)
                                {
                                    0x00, 0x00, 0x00, 0x00
                                }, 

                                "@0,av-signal-type", 
                                Buffer (0x04)
                                {
                                    0x08, 0x00, 0x00, 0x00
                                }, 

                                "@0,audio-codec-info", 
                                Buffer (0x04)
                                {
                                    0x00, 0x01, 0x04, 0x00
                                }, 

                                "@0,name", 
                                Buffer (0x0F)
                                {
                                    "NVDA,Display-A"
                                }, 

                                "@1,compatible", 
                                Buffer (0x0B)
                                {
                                    "NVDA,NVMac"
                                }, 

                                "@1,device_type", 
                                Buffer (0x08)
                                {
                                    "display"
                                }, 

                                "@1,name", 
                                Buffer (0x0F)
                                {
                                    "NVDA,Display-B"
                                }, 

                                "@1,port-number", 
                                Buffer (0x04)
                                {
                                    0x01, 0x00, 0x00, 0x00
                                }, 

                                "@2,compatible", 
                                Buffer (0x0B)
                                {
                                    "NVDA,NVMac"
                                }, 

                                "@2,device_type", 
                                Buffer (0x08)
                                {
                                    "display"
                                }, 

                                "@2,name", 
                                Buffer (0x0F)
                                {
                                    "NVDA,Display-C"
                                }, 

                                "@2,port-number", 
                                Buffer (0x04)
                                {
                                    0x02, 0x00, 0x00, 0x00
                                }, 

                                "@2,connector-type", 
                                Buffer (0x04)
                                {
                                    0x00, 0x08, 0x00, 0x00
                                }, 

                                "@2,av-signal-type", 
                                Buffer (0x04)
                                {
                                    0x08, 0x00, 0x00, 0x00
                                }, 

                                "@2,audio-codec-info", 
                                Buffer (0x04)
                                {
                                    0x00, 0x01, 0x05, 0x00
                                }, 

                                "@3,compatible", 
                                Buffer (0x0B)
                                {
                                    "NVDA,NVMac"
                                }, 

                                "@3,device_type", 
                                Buffer (0x08)
                                {
                                    "display"
                                }, 

                                "@3,name", 
                                Buffer (0x0F)
                                {
                                    "NVDA,Display-D"
                                }, 

                                "NVCAP", 
                                Buffer (0x14)
                                {
                                    /* 0000 */    0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 
                                    /* 0008 */    0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0E, 
                                    /* 0010 */    0x00, 0x00, 0x00, 0x00
                                }, 

                                "device_type", 
                                Buffer (0x0C)
                                {
                                    "NVDA,Parent"
                                }, 

                                "NVDA,Features", 
                                Buffer (0x04)
                                {
                                    0x00, 0x08, 0x00, 0x00
                                }, 

                                "VRAM,totalMB", 
                                Buffer (0x04)
                                {
                                    0x00, 0x08, 0x00, 0x00
                                }, 

                                "VRAM,totalsize", 
                                Buffer (0x04)
                                {
                                    0x00, 0x00, 0x00, 0x80
                                }, 

                                "model", 
                                Buffer (0x16)
                                {
                                    "nVidia GeForce GT 740"
                                }, 

                                "rom-revision", 
                                Buffer (0x0F)
                                {
                                    "30.00.D9.07.80"
                                }, 

                                "hda-gfx", 
                                Buffer (0x0A)
                                {
                                    "onboard-1"
                                }
                            }, Local0)
                        DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
                        Return (Local0)
                    }

                    Name (_SUN, One)
                }

System Info:

nVidia GeForce GT 740:

  Chipset Model:	nVidia GeForce GT 740
  Type:	GPU
  Bus:	PCIe
  Slot:	PCI Slot 0
  PCIe Lane Width:	x16
  VRAM (Total):	2048 MB
  Vendor:	NVIDIA (0x10de)
  Device ID:	0x0fc8
  Revision ID:	0x00a2
  ROM Revision:	30.00.D9.07.80
  Displays:
DELL S2440L:
  Resolution:	1920 x 1080 @ 60Hz (1080p)
  Pixel Depth:	32-Bit Color (ARGB8888)
  Display Serial Number:	67Y4J44F1PYQ
  Main Display:	Yes
  Mirror:	On
  Mirror Status:	Master Mirror
  Online:	Yes
  Rotation:	Supported
  Television:	Yes
SONY TV:
  Resolution:	1920 x 1080 @ 60Hz (1080p)
  Pixel Depth:	32-Bit Color (ARGB8888)
  Mirror:	On
  Mirror Status:	Hardware Mirror
  Online:	Yes
  Rotation:	Supported
  Television:	Yes

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