Source/sound suddenly shutdown LE10 - rpi4

  • Hi everyone,

    I'm on LE10, installed on a rpi4 (4gb), i have this hardware :

    - 3.1 audio kit (pionner VSX-323 amplifier)

    - BenQ 1080p projector

    When i watch something (tv, video), i have regularly (alternate) those problems :

    - source switch suddenly (i have to switch again then on the right source)

    - sound stop to work (i have to restart the amplifier to get sound again)

    CEC is on, but i don't let the right to start/stop amplifier or projector. (stopping the projector will shut immediatly the projector bulb, which is really bad for projector without cooling it before the halt). I can add that, the remote control can't modify the sound volume on the amplifier through CEC (but it used to work previously on LE9)

    i will search for another micro-hdmi cable to test (not sure i have a 2nd cable), did anyone got this problem on LE10 ? I still don't know if it comes from the rpi4, LE10 or my amplifier.

    Thx