Latitude 5490: Headphone jack and Touchpad not working

[Omerlatif5490 0]

Thank you so much bro, it worked. Can't believe it.

[Jake Lo 1702]

@Omerlatif5490

Headphone fixed too?

[Omerlatif5490 0]

No. I just hear a continuous beep from the headphones, speakers work fine though.

 

I tried installing HoRNDIS because my WiFi card is not supported, I added it to the kexts folder, used ProperTree to get a snapshot for the config.plist, but upon reboot it gives me a kernel panic error. 

[Jake Lo 1702]

I don't use propertree, so I don't know if it'll automatically add every kexts/plugins and SSDT* found in the OC folder

You can manually copy the Horndis kexts from your Config to the working Config file

For HP, try adding CodecCommander.kext and this SSDT*

I had changed layoutid to 11, you had 14 before. Try other layoutid = 13, 16, and 56

SSDT-ALC256.aml.zip

[Omerlatif5490 0]

layoutid 21 finally works, thank you so much. How do I manually add kexts to config.plist? Whenever I add a left I always update the config file from ProperTree and it always works, no idea why it broke this time 

[wribeiro 0]

@Omerlatif5490

 

I have the same model Latitude 5490, I have installed Big Sur using the efi provided by @Jake Lo here, and with minor adjustments I was able to install BigSur.

 

Now I'm having problem with distorted sound using headphone.

 

Have you configured any of those files mentioned above (CodecCommander or SSDT-ALC256.aml.zip)?

 

Can you tell how you manage to fix it?

 

Thanks

[Jake Lo 1702]

@wribeiro

change layout-id to 21 as stated by Omerlatif5490

just add to bootarg under NVRam in the Config file

alcid=21

[wribeiro 0]

I have tried all ids under the ACL256, none of them worked.

 

Maybe its something in my EFI folder.

 

I'll upload it here, I appreciate if you can help me.

 

ps.: I have excluded the intelbluetooth kext to not exceed the file size limit

 

 

OC_5490.zip

Just posting again do say that is working now.

 

I compared my EFI folder with Omerlatif5490.

 

In my drivers folder was missing the AudioDxe.efi. I have copied it and now the sound is working perfectly through headphone jack.