LayoutID and PathMapID mappings for AppleHDA_ProBook.kext and applicable AppleALC.kext ALC282: 33 (was 3 prior to 10.14) AppleALC: 3,4,13,27,28,29,76,86,127 ALC280: 4 AppleALC: 3,(4),11,13,15 CX20724: 5(Mirone version) or 7(InsanelyDeepak version) AppleALC: 3(Mirone), 13(InsanelyDeepak) per @y010204025, AppleALC layout-id 3 does not allow headphones to work, so switched to layout-id 13 ALC286: 6 AppleALC: 3 CX8200: 20 (extracted from AppleALC) AppleALC: 3 IDT_76d1 (IDT92HD87B1_3): 122 (was 12 prior to 10.14) AppleALC: 12, 13 IDT_76d9 (IDT92HD87B2_4): 123 (was 13 prior to 10.14) AppleALC: 13 IDT_76e0 (IDT92HD91BXX): 17 AppleALC: 3, 12(envy), 13, 33, 84 per @atomfried AppleALC layout-id 3 does not work with Haswell ZBook G1, so switched to layout-id 13 IDT_7605 (IDT92HD81B1X5): 128 (was 18 prior to 10.14) (has alternate: IDT92HD87B1) AppleALC: 3, 11, (12), 20, 21, 28 IDT_7695 (IDT92HD95): 19 AppleALC: 12 Note: Layout-id 14,15,16 may not be able to be used due to AppleHDA not using them (there may be a whitelist) Note: macOS Mojave removes layout-id that were used: 3, 12, 13, 18. Note: AppleALC removes layout-id restriction with a bit of trickery/patching. -- Model/Audio mapping ALC282: 4x0G2 Haswell, 8x0G2 Haswell, 4x0G2 Broadwell ALC280: Zbook G2 Haswell/Broadwell, HP Folio 9480m Haswell, 8x0G2 Broadwell ALC286: EliteBook Folio 1020 G1/Broadwell CX20724: 4x0sG3 Skylake 76d1: 4x30s, 76d9: 4x40s 76e0: 4x0G0, 4x0G1, 9x70m, 4x0G1, 8x0G1, 1040G1, 7605: 6x60s, 6x70s, 6x70AMD, 6x60wAMD, 6x60wNVIDIA, 8x70p, 2x70 7695: 3x0G1, CX8200: 4x0s G4 Kabylake -- Note regarding ALC280 combo jack and difference between original and for G2. From Mirone: http://www.tonymacx86.com/el-capitan-laptop-support/191207-hp-elitebook-g2-alc280-combo-jack-wip-7.html#post1242688 To the kext to ALC280 of @zirkaiva I had to add in: Headphones/MuteGPIO=4 in Layout-ID, to your Headphone work, to be honest this is an exception for most the ALC codec for Laptops works without it in Layout-ID, and this is your case I should have tried the first time, When you said that ALC280_Original worked, least headphones. We have two slightly different scenarios, the first in which HP Elitebook 9480m Folio need Headphones/MuteGPIO=4 in Layout-ID, for your Headphone works and the second where HP Elitebook G2, not must have these values in its Layout-ID so your headset work correctly, RehabMan keep this in mind when updating your repository.