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HDMI Audio Intel HD 3000 on Series 7 Motherboard with CX20590


keiner99
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Hi

 

i don't know how to enable the hdmi audio on my lenovo u410 ideapad..

cpu is a i3 2367m with intel hd 3000 graphics with a intel 7 chipset mainboard (sandy/ivy mixed)

 

everything is working perfectly, expect hdmi audio..

 

i use a dsdt to enable the intel hd 3000 on series 7 mainboard and also a patched apple hda with a dsdt HDEF edit to enable cx20590 sound

 

how could i enable hdmi audio?

is it possible? do i have to patch a kext or something else? (i use all original graphic kexts, is only working with dsdt)

 

 

here is the patch for intel hd 3000:

 

In device IGPU i added:

 

 

            Method (_DSM, 4, NotSerialized)  // _DSM: Device-Specific Method
            {
                If (LEqual (Arg2, Zero))
                {
                    Return (Buffer (One)
                    {
                         0x03
                    })
                }

                Return (Package (0x04)
                {
                    "AAPL,snb-platform-id",
                    Buffer (0x04)
                    {
                         0x00, 0x00, 0x01, 0x00
                    },

                    "hda-gfx",
                    Buffer (0x0A)
                    {
                        "onboard-2"

 

 

and this is the patch for cx20590 sound

in device HDEF

 

 

            Method (_DSM, 4, NotSerialized)  // _DSM: Device-Specific Method
            {
                Store (Package (0x0C)
                    {
                        "codec-id",
                        Buffer (0x04)
                        {
                             0x6E, 0x50, 0xF1, 0x14
                        },

                        "layout-id",
                        Buffer (0x04)
                        {
                             0x0C, 0x00, 0x00, 0x00
                        },

                        "PinConfigurations",
                        Buffer (Zero) {},
                        "hda-gfx",
                        Buffer (0x0A)
                        {
                            "onboard-1"
                        },

                        "device-type",
                        Buffer (0x11)
                        {
                            "Conexant CX20590"
                        },

                        "MaximumBootBeepVolume",
                        Buffer (One)
                        {
                             0x4D
                        }
                    }, Local0)
                DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
                Return (Local0)
            }
        }
 

 

do i need another dsdt patch or something else to enable hdmi audio?

 

attached is my patched dsdt

 

thanks for your help :)

keiner99

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i changed onboard-2 to onboard-1 in IGPU but nothing happend

Framebuffer edit required:

Haven't look at the current SNB kext, a value or two may be different, adjust as necessary

AppleIntelSNBGraphicsFB Binary

 

native

01 02 04 00 10 07 00 00 10 07 00 00

05 03 00 00 02 00 00 00 30 00 00 00

02 05 00 00 00 04 00 00 07 00 00 00

03 04 00 00 00 04 00 00 09 00 00 00

04 06 00 00 00 04 00 00 09 00 00 00

 

edited

01 02 02 00 10 07 00 00 10 07 00 00

05 03 00 00 02 00 00 00 30 00 00 00

02 05 00 00 00 08 00 00 07 00 00 00

03 04 00 00 00 04 00 00 09 00 00 00

04 06 00 00 00 04 00 00 09 00 00 00

 

Edit:

Find: 02 05 00 00 00 04 00 00 07 00 00 00

Replace: 02 05 00 00 00 08 00 00 06 00 00 00

 

Reply with actual edit and IOReg.

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