AppleHDA.kext - Headphones OK, no speaker

[RehabMan]

Ok, no problem. Still, based on gen_debug, could you help me with the audio issue?

You should emulate Windows (for _OSI calls, not Linux.

But I still think your speaker problem is likely pathmap related.

Other notes:
- you should NOT have applied the PNOT patch
- "IRQ Fix" patch applied, but may not be required
- you may need FakePCIID_Intel_HDMI_Audio.kext
- drivers64UEFI configuration is wrong (typically with your hardware EmuVariableUefi-64.efi needed with OsxAptioFix*.efi, or you could use AptioMemoryFix.efi)

 

[magneto538]

You should emulate Windows (for _OSI calls, not Linux.

But I still think your speaker problem is likely pathmap related.

Other notes:
- you should NOT have applied the PNOT patch
- "IRQ Fix" patch applied, but may not be required
- you may need FakePCIID_Intel_HDMI_Audio.kext
- drivers64UEFI configuration is wrong (typically with your hardware EmuVariableUefi-64.efi needed with OsxAptioFix*.efi, or you could use AptioMemoryFix.efi)

Many thanks for the heads up!
I have re-exported the ACPI tables from Clover > F4, rebuilt the DSDT from scratch and applied the patches (all the basic patches except for PNOT and IRQ Fix, Check OS for Win 10, Audio Layout 3 and HP Pavilion battery status patch). Then I have added EmuVariableUefi-64.efi to drivers64UEFI and added FakePCIID_Intel_HDMI_Audio.kext.

The audio issue still remains. Could you point out some resources for me to fix the pathmap problem?

Attached is the new dump from gen_debug.

 

[RehabMan]

mains. Could you point out some resources for me to fix the pathmap problem?

You will need to read up on AppleHDA patching (complex topic).

 

[magneto538]

You will need to read up on AppleHDA patching (complex topic).

So should I patch it manually from scratch?

 

[RehabMan]

So should I patch it manually from scratch?

Your choice really... since you have something that almost works, it would seem to make more sense to simply check/modify the pathmaps (assuming they are wrong).

 

[magneto538]

Your choice really... since you have something that almost works, it would seem to make more sense to simply check/modify the pathmaps (assuming they are wrong).

That sounds better. Does the AppleHDA patching guide from the FAQ fit the purpose?

 

[RehabMan]

That sounds better. Does the AppleHDA patching guide from the FAQ fit the purpose?

There really isn't a full AppleHDA patching guide linked from the FAQ (just a mention of Mirone's patcher, which contains already patched XML).

There really isn't a complete, well written guide to link to.

 

[magneto538]

There really isn't a full AppleHDA patching guide linked from the FAQ (just a mention of Mirone's patcher, which contains already patched XML).

There really isn't a complete, well written guide to link to.

From FAQ (Q. Audio is not working. How to fix?):

An AppleHDA patching guide: http://osxarena.com/2015/03/best-all-in-one-patch-applehda-guide/​

I was referring to this one. Haven't checked it out yet.

 

[RehabMan]

From FAQ (Q. Audio is not working. How to fix?):

An AppleHDA patching guide: http://osxarena.com/2015/03/best-all-in-one-patch-applehda-guide/​

I was referring to this one. Haven't checked it out yet.

I think you'll find that guide incomplete, but still worth a read.
Understanding will also require reading the HDA specification.

 

[magneto538]

I decided to start from a vanilla DSDT, reapply all the patches except for "Audio Layout 3", remove patched/unnecessary kexts and install VoodooHDA instead. Old-fashioned and punk, but it works just fine.