I have just seen another forum member @PlumpKibbles has "Intel Smart Sound" and encountered "Dummy Output" issue. See this: WiFi 6 AX101 and touchpad don't work - #20 by PlumpKibbles
translated:
Acabo de ver a otro miembro del foro @PlumpKibbles tiene "Intel Smart Sound" y se encontró con el problema de "Salida ficticia". Vea esto: WiFi 6 AX101 and touchpad don't work - #20 by PlumpKibbles