alsa-project/alsa-ucm-conf issue #255 was opened from KaiChuan-Hsieh: On linux kernel 6.0, with rt715-sdca codec on Dell platform. The internal mic can't record sound after boot. Try $ amixer cset name='PGA5.0 5 Master Capture' 1 Then the internal mic can record sound successfully. Issue URL : https://github.com/alsa-project/alsa-ucm-conf/issues/255 Repository URL: https://github.com/alsa-project/alsa-ucm-conf