Please help. Big Sur HDMI Audio not working on Dell inspiron 5577 laptop

[Tomprescott_128]

Please help. Big Sur HDMI Audio not working on Dell inspiron 5577 laptop

Hi Everyone,

I have got Dell inspiron 5577 with an CPU i7 7700 and intel hd graphics 630. Alc256. I have installed Big Sur using OpenCore 0.6.5

Everything is working but I can’t get audio to work though HDMI. I have it installed agdpmod=vit9696 to get the hdmi working and Using Audio Device settings hda-gfx onboard-1, Layout 15000000 (alcid=21). As the built in audio and headphones are fully working.

The other day HDMI audio worked but when I rebooted it was not working again. It only works about 5% of the time. Is there any boot arguments or kents I could use to get the audio working? Or any other ideas? I have been trying to fix this for months with no joy.

I have also tried using FakePCIID_intel_Hdmi_audio.kent , Commander.kent (which I'm no longer have them installed) and tried using hackintool to create a patch which I could not get to work.

[MaLd0n]

check hackintool or weg site

https://github.com/acidanthera/WhateverGreen/blob/master/Manual/FAQ.IntelHD.en.md

[Tomprescott_128]

Hi Everyone,

I have managed to sort my HDMI Audio. I now Have headphones, internal speaker and HDMI all fully working. I ended up spoofing the audio using hackintool and adding the following kents

• FakePCIID.Kent
• FakePCIID_intel_Hdmi_audio.kent 

Edited January 18, 2021 by Tomprescott_128