Rpi3 - no audio via HDMI

    I tried to make LibreELEC 12.2.1 run on my Raspberry Pi 3, but no matter if I use the upgraded installation (was 12.0.2) or do a fresh installation there is no audio output via HDMI.


    In LibreELEC System -> Audio setting I see 4 ALSO vc4-hdmi devices:


    • ALSA: Default vc4-hdmi, MAI PCM i2s-hifi-0
    • ALSA: vc4-hdmi (), MAI PCM i2s-hifi-0
    • ALSA: vc4-hdmi (vc4-hdmi), MAI PCM i2s-hifi-0

    • ALSA: vc4-hdmi (vc4-hdmi), SHP SHARP HDMI on HDMI


    Based on the fact that the connected TV is from Sharp the last entry should be the correct one but I trid all of them and rebooted but nothing changed.

    I also tried adding the following values in config.txt for fix hdmi audio:

    Code
    hdmi_drive=2
hdmi_force_hotplug=1
hdmi_force_edid_audio=1
config_hdmi_boost=7

    But that also had no effect on audio.


    Is audio output via HDMI simply broken on LibreELEC 12.2.1 on a Raspberry Pi 3?

    Audio works on RPi 3B running 12.2.1, I just tried a fresh install.

    HDMI options are not put in config.txt anymore, as HDMI configurations should be made using cmdline.txt instead (different format, don't just copy and paste the old lines). Source

    Sanity check: Have you observed any other device being able to play audio on this Sharp TV using the same HDMI port and the same HDMI cable? HDMI ports and cables vary greatly in capabilities.