Dell Precision M4800 with Intel HD4600 HDMI video

[howoarang]

Hi, I'm to trying get HDMI video output on my Dell Precision M4800 with GPU Intel HD4600.

 

- In BIOS I check "Switchable Graphics" to Enabled

 

- in config.plist I added these patches:

ig-platform-id 0x0a260006

FakeID IntelGFX 0x04128086

 

- to S/L/E I added FakePCIID.kext, FakePCIID_Intel_HD_Graphics.kext and FakePCIID_Intel_HDMI_Audio.kext

 

- in DSDT.aml I edited Device IGPU with this content:

Device (IGPU)
        {
            Name (_ADR, 0x00020000)
            Method (_DSM, 4, NotSerialized)
            {
                Store (Package (0x08)
                    {
                        "AAPL,slot-name", 
                        "Built-in", 
                        "device-id", 
                        Buffer (0x04)
                        {
                            0x12, 0x04, 0x00, 0x00
                        }, 

                        "AAPL,ig-platform-id", 
                        Buffer (0x04)
                        {
                            0x06, 0x00, 0x26, 0x0A
                        }, 

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

Now internal laptop display works on GPU Intel HD4600 with Full performance support, but HDMI or DP output still doesn't work and I need it, because usually I use external 24" LCD Monitor 

HD4600 m4800.zip

[leo_maccomic]

hi my friend,

can you give me your EFI folder? your m4800 same to me.

thanks you very much.