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Audio problem on Acer V5-573G, Haswell, ALC-282, AppleALC, Big Sur, OpenCore

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Addresses for HDAU and HDEF were obtained by gfxutil.
 
yes, the hardware profile section
Ok. I’ll do it again. I guess section about AppleALC and HPET is critical. Something else?
 
Ok. I’ll do it again. I guess section about AppleALC and HPET is critical. Something else?
yes, as already mentioned, your hardware profile





Screenshot 2020-12-03 181221.png


doesn't look like a haswell setup
 
also test the other audio layout id's as per:

what may have worked for clover may not work on OC

you may need to run SSDTIME

to generate irq rename patches
 
also test the other audio layout id's as per:

what may have worked for clover may not work on OC

you may need to run SSDTIME

to generate irq rename patches
Already tested on all layout-ids according to the link you provided. And this didn’t work with clover neither.
I uased also ssdtime, generated dsdt and hpet with option c. It is already included. Did I miss something?
 
Already tested on all layout-ids according to the link you provided. And this didn’t work with clover neither.
I uased also ssdtime, generated dsdt and hpet with option c. It is already included. Did I miss something?
probably
 
I tried this whole night to make it running. For some reason AppleHDA is not running. When I try
% kextstat | grep 'Lilu\|AppleALC\|AppleHDA'
——-
Executing: /usr/bin/kmutil showloaded
No variant specified, falling back to release
17 5 0 0x2a000 0x2a000 as.vit9696.Lilu (1.4.9) 6E38576B-9675-3D9E-9763-5B0F9DA1B098 <8 6 5 3 2 1>
18 0 0 0x169000 0x169000 as.vit9696.AppleALC (1.5.4) E185762F-E994-3309-9CBE-F554C911788D <17 14 8 6 5 3 2 1>
130 0 0xffffff7f9e53c000 0x13000 0x13000 com.apple.driver.AppleHDAController (283.15) 6CF7DB7D-FADC-3C55-B7DB-0B82CCCF2AF3 <129 128 120 14 8 7 6 5 3 1>
——-
As you can see there is no ApleHDA. I trued HPET fix using SADtime and later with Rehab’s patch. Nothing. Any idea?
 
Success! Finally!

Attached is EFI folder (content of Resources is removed, please add files). Used OC 0.6.3.
Works:
- Sound (ALC 282), AppleALC, layout-id = 3
- HD 4400 with 1536MB (full support)
- HDMI with audio
- touch pad (without clicks)
- Wifi with BMC94352HBM
- Bluetooth with BCM94352HBM
- Apple store (you need to create your own SMB - I put zeros in the attached EFI)
- iMessage
- restart

Doesn't work:
- Shut down
- click on touch pad

It would be great, if there is anyone who knows how to solve shutdown and click on touch pad.

@Feartech: thank you for your tips. They actually helped me a lot.
 

Attachments

  • EFI.zip
    4.6 MB · Views: 334

@k.kemic

Hi! Thanks for your share.
After referring your EFI, I figured out that the key is to solve IRQ conflict by patching DSDT.
I successfully turned on my internal speakers through your method, though, some problems retain: the audio from the right channel is really low, and the left speaker is choppy unless I turn off the right one. On the contrary, headphones work perfectly.
Do you also suffer from this issue? Thanks.
(Device: Acer Aspire V7-482PG)

Regards
 
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