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[SOLVED] M4800 - Help needed for AppleHDA (ALC292)


vanquybn

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You're right, I added audio patches to my Config.plist but only for AppleHDA_ALC292 and forget for patch AppleHDA. Now it works, THANKS!

 

Update #1:

Internal Speaker, and also headphone jack works, but if I connect TV via Display Port or HDMI, sound doesn't work any more. I must reboot. So HDMI audio output doesn't work.

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Did you patch DSDT renaming B0D3 to HDAU and adding 

            Method (_DSM, 4, NotSerialized)  // _DSM: Device-Specific Method            
            {
                Store (Package (0x02)
                    {
                        "hda-gfx", 
                        Buffer (0x0A)
                        {
                            "onboard-2"
                        }
                    }, Local0)
                DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
                Return (Local0)
            }
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