applealc cx20590 cx20671 原生支持applehda 适用于thinkpad e530c
I also have some problems with AppleALC/AppleHDA kext.
My audio chip is Conexant 20671. Under DPCIManager it is detected as CX20590.
So I have batched my DSDT,link:https://blog.csdn.net/wr132/article/details/54798754
RehabMan大神的补丁源
Name：RehabMan URL：http://raw.github.com/RehabMan/Laptop-DSDT-Patch/master
重点把RehabMan大神的补丁[syn]和[sys]打上补丁，重点对[bat] Lenovo E430/E540、[sys] AC Adapter Fix打上补丁。
下面这些也都打上吧。
“Fix _WAK Arg0 v2”
“HPET Fix”
“SMBUS Fix”
“IRQ Fix”
“RTC Fix”
“OS Check Fix”
“Fix Mutex with non-zero SyncLevel”
“Fix PNOT/PPNT”
“Add IMEI”
AppleALC + Lilu in clover/kext/others link: https://github.com/tluck/Lenovo-T420-Clover/releases
AppleALC.kext和Lilu要从tluck大神那下载，专门针对cx20590编辑的版本，用别的版本不能用。文件放在clover/kext/others
clover/config.plist 注入audio的layout id=3 or 12
