Mountain Lion HDMI Audio - AMI DSDT

[IFrees]

Thanks Toleda will give this a try after the new install of the OS without the ATI6000 Kext.

 

[herbie12]

First and foremost, HDMI audio will not work in OS X on non Apple hardware until you modify your system correctly, regardless of the graphics system. Your system is still not configured correctly. An IOReg on a clean install is useless. What HDMI device is connected to the 570?

The HDMI device connected to the 570 is a Samsung lcd tv

 

[toleda]

The HDMI device connected to the 570 is a Samsung lcd tv

Add layout-id injection as noted below. Compile, install and restart. Reply with new IOReg.

                Device (HDAU)
                {
                    Name (_ADR, One)
                    Method (_DSM, 4, NotSerialized)
                    {
                        Store (Package (0x04)
                            {
                                "layout-id", 
                                Buffer (0x04)
                                {
                                    0x01, 0x00, 0x00, 0x00
                                }, 

                                "hda-gfx", 
                                Buffer (0x0A)
                                {
                                    "onboard-2"
                                }
                            }, Local0)
                        DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
                        Return (Local0)
                    }
                }

 

[herbie12]

Add layout-id injection as noted below. Compile, install and restart. Reply with new IOReg.

                Device (HDAU)
                {
                    Name (_ADR, One)
                    Method (_DSM, 4, NotSerialized)
                    {
                        Store (Package (0x04)
                            {
                                "layout-id", 
                                Buffer (0x04)
                                {
                                    0x01, 0x00, 0x00, 0x00
                                }, 

                                "hda-gfx", 
                                Buffer (0x0A)
                                {
                                    "onboard-2"
                                }
                            }, Local0)
                        DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
                        Return (Local0)
                    }
                }

Still no hdmi

 

[toleda]

Still no hdmi

The edit did not show up in IOReg. Verify the edit is in Extra/dsdt.aml. Reply with dsdt.aml and IOReg.

 

[herbie12]

The edit did not show up in IOReg. Verify the edit is in Extra/dsdt.aml. Reply with dsdt.aml and IOReg.

Here's my dsdt and ioreg file

 

[toleda]

Here's my dsdt and ioreg file

The dsdt.aml attached does not have the HDAU/layout-id edit. Try again.

 

[herbie12]

The dsdt.aml attached does not have the HDAU/layout-id edit. Try again.

how do you exactly add hdau/layout id edit on dsdt . sorry for the noob question.the dsdt returns a lot of errors.

 

[toleda]

how do you exactly add hdau/layout id edit on dsdt

MaciASL works like any text editor. Copy what you want to add and paste it where you want it go.

 

[herbie12]

Add layout-id injection as noted below. Compile, install and restart. Reply with new IOReg.

                Device (HDAU)
                {
                    Name (_ADR, One)
                    Method (_DSM, 4, NotSerialized)
                    {
                        Store (Package (0x04)
                            {
                                "layout-id", 
                                Buffer (0x04)
                                {
                                    0x01, 0x00, 0x00, 0x00
                                }, 

                                "hda-gfx", 
                                Buffer (0x0A)
                                {
                                    "onboard-2"
                                }
                            }, Local0)
                        DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
                        Return (Local0)
                    }
                }

Here's my ioreg file