Thatnk youSee Post #1/Fixes - macOS 100/200 Series
Normal, not installed.
See HDMI Audio AppleHDA/cloverHDMI
No. Off topic.Is that conected to audio driver ?
Post #1/More Info/Details - Realtek ALC AppleHDAA little more detail on the C part
This thread is not for Problem Reporting, see Post #1/Problems. Off topic.I attached all files you demand.