You can disable the HDMI audio in the config.text file in the boot folder. ?I am laid up and can not get to my computer to look up the specific line to add the ¡°,noaudio¡± to the end of the dev= line and do not remember the driver that the video is using.?
If you post the contents of config.txt I can tell you the link to modify. ? A search for noaudio in the group may also work
73
Evan
AC9TU
