Ok so we determined its a ALC280. I downloaded the zip file from github and extracted it.
I am guessing that I have to load AppleHDA Probook.kext into S/L/E with Kext wizzard.
If you could break down the required steps to follow as I'm not sure what you mean. Even though this is my 4th...
I ave the exact same system, 820 G2 I5-5300 with HD5500.
Here is what I have got working:
Audio only works with VoodooHDA do to us having a ALC3228 audio chip. I have used the latest version of Voodoohda and it seem to be working fine. Did have to modify the plst file in the package to...
I have the same sound card in my Elitebook 820 G2. I got mine to work using VoodooHDA Package. It is not the correct driver and has some issues, but it makes the speakers work. keep us posted if you find the correct patch for this sound chip.
Thank you for all your help
The IOreg wass taken after i put it to sleep and then the bluetooth would wake up. When you boot into OS X, it shows "Bluetooth Unavailable"
after waking up from sleep, bluetooth is on
Here is the dump from Linux. Not sure if it is right
I have done that more times than I can remember. I wonder if it has anything to do with the mute switch on the keyboard. It is always lit and when you hit it, you get the mute symbol on the screen, but it does not turn audio on.