Comment 26 for bug 1899132

@kaihengfeng:

Thanks for your information.
The linux-oem-20.04b kernel is installed, at a first test:

- "snd_hda_intel.dmic_detect=0" must be disabled, otherwise no input device recognized
- without this boot option, internal microphone working
- external headset:
- - output possible
- - NO input, there is a headset microphone port in xubuntu volume control, but nothing comes through