Hi Takashi, I'm wondering if what you mentioned in Comment #9 about selecting both cards is the issue. Only one card is presented: > ��������������������������� $ ls /proc/asound/ > card0/ cards devices hwdep modules oss/ pcm seq/ sofsoundwire@ timers version > ��������������������������� $ cat /proc/asound/cards > 0 [sofsoundwire ]: sof-soundwire - sof-soundwire > Intel Soundwire SOF