Comment # 20 on bug 1177169 from Nicolas Patricio Saenz Julienne

Hi Zlatko,
please try this replacing this in config.txt:

  dtoverlay=vc4-kms-v3d,cma-default

with 

  dtoverlay=vc4-kms-v3d-pi4,cma-default

and provide the output of "aplay -L".