Comment 58 for bug 1875199

@Kai-Heng,

Apologies for the delay in my reply...

I tested to the best of my ability using the Audacity audio application in both Linux Mint 19.3 (where audio output works) and Ubuntu 20.04 (where audio output does not work) and it appears that audio input via microphones is not supported.

I tested with a standard microphone as well as with a combination headset with an integrated microphone.

Based on the block diagram on page 35 (printed page 27) of the technical specifications for the unit --> https://www.intel.com/content/dam/support/us/en/documents/mini-pcs/NUC8CCH_TechProdSpec.pdf it appears that the audio port is only a line out jack.

I attempted to use the "hdajackretask" application you mention, however when attempting to do so I receive an error message 'Device or resource busy' when I attempt to apply the override. I have attached a screenshot of the specific error.

Please let me know if I can provide any additional information, and thank you as always for the help!