- Sep 18, 2012
- HP EliteBook_8x0G1
- HD 4400, 1366 x 768
update. temp solved audio
change order. install big updates 1st.
installed little snitch , the part where it was "updating boot cache" fixed whatever was causing the applealcu not to load and versbose says probable nnennory leek
tested shutdown startups
100% works 8x0g1 maybe different for other laptop configs, but --> must run rehabmans post install script after each boot up, brings back the audio icon and audio works etc.
else no audio.
make all references to applealc and especially applealcu to start finish before applehda in the boot up
dummies proof how to?
sudo kextstat output
applealc at index 21,
applealcu at index 146
applehdacontroller at index 122
Native macOS HD audio for not officially supported codecs - Installation and usage · acidanthera/AppleALC Wikigithub.com
How to use AppleALC
The only task you need to accomplish if your codec is supported is to load the kernel extension and see if it works. You can use your bootloader for that but remember to load AppleALC earlier than AppleHDA (see sudo kextstat output for more detail).
Note that Lilu must also be present for AppleALC to work.
update - for better audio sound
use the newest current applealc kext.