Lenovo T470 OC Big Sur working except sound

[septicc]

Hello all,

I am using the following EFI, which has battery, brightness/sound keys working along with intel lan, wifi, bluetooth.

Any advice how to troubleshoot audio with Realtek HD audio ?
I am familiar with adding removing kexts, but not with checking if this is matter of patching some files rather than just replacing some kexts.

Regards,
n.

 

[Feartech]

Hello all,

I am using the following EFI, which has battery, brightness/sound keys working along with intel lan, wifi, bluetooth.

Any advice how to troubleshoot audio with Realtek HD audio ?
I am familiar with adding removing kexts, but not with checking if this is matter of patching some files rather than just replacing some kexts.

Regards,
n.

An iDiot's Guide To Lilu and its Plug-ins

An iDiot's Guide To Lilu and its Plug-in's Last Update: 22nd Jan 2021 (Add note about OpenCore config.plist modifications) About this Guide Note: This guide was written when Clover was the boot loader of choice as such the config.plist examples in this guide are mostley Clover specific ... if...

www.tonymacx86.com

 

[septicc]

thanks i will go through that.

 

[septicc]

alcid=3 did the job external speakers are now ok, plug is still having issues, but i never use it anyway.

As soon as i figure out the dual battery thing i will post the final t470 EFI.

 

[cesarl]

Hello septicc
Were you able to solve your problem ? You can publish your EFI folder
thank you

 

[septicc]

Everything works, except:
- the2nd battery which is not detected, so warning message is displayed early for plug or go to shutdown
- usb-c dock works problematic, only one display is possible at a time, either laptop monitor or an external.

 

[nitingauri]

I've used your EFI and have added alcid=47 which made audio work for me, the battery is very buggy thou... any updates mate?

 

[nitingauri]

Sierra on Lenovo T470 laptop

Hi All I've been working on a Hackintosh build for a Lenovo T470. Thanks to the excellent information and guides on these forums, I now have Sierra is up and running. The main initial challenges were with installation - NMVe drive and Intel HD620 gfx mainly. What's working currently: - Intel...

www.tonymacx86.com

may be patching DSDt with X220 battery patch works, give a try mate. @septicc