18 Oct 2020, 09:49

@maxxam les 3 sorties sont celle renvoyées par le système (hardware/software) on liste celles présente

mais j'ai dit de la merde en fait normalement le mode default devrait switcher automatiquement, mais tout dépend de l'HDMI et comment c'est détecté https://www.raspberrypi.org/documentation/configuration/audio-config.md

"The Raspberry Pi has up to three audio output modes: HDMI 1 and 2, if present, and a headphone jack. You can switch between these modes at any time.

If your HDMI monitor or TV has built-in speakers, the audio can be played over the HDMI cable, but you can switch it to a set of headphones or other speakers plugged into the headphone jack. If your display claims to have speakers, sound is output via HDMI by default; if not, it is output via the headphone jack. This may not be the desired output setup, or the auto-detection is inaccurate, in which case you can manually switch the output."