Haswell patches must be applied after each software update.

[Andorra]

Haswell patches must be applied after each software update.


See:github. HDMI Audio 8series: README txt. File:




I did the HW Monitor update, after reboot, no HDMI Audio and shortly after: System did freeze.

Turnend machine off.
Restarted: System Preferences: Audio: HDMI LG Monitor, but no Sound, System: showed no HDMI Connection. I veryfied if pop2 exist, did not so I applied my DSDT.aml. Restart: HDMI Audio is working again. No freezes since.

 

[toleda]

Haswell patches must be applied after each software update.

dsdt: does not change after Software Update, does change with BIOS update.
kexts: usually change after each update, apply patch if required