Sound on HMDI AND 3.5 mm jack


I have a little problem with my M3 + Android and the audio output. I am not sure if it is a M3 thing at all or just a Android settings behaviour.

Anytime I put a plug into the 3.5 mm jack M3/Android mutes the sound on my HDMI-output. But I like to get it over HDMI and parallel over 3.5mm. I could’nt find annything in the (very simple) settings of my android regarding audio outputs at all. It is possible to get the Sound over both connections?

thanking you in anticipation


image: BPI-M3_Android_HDMI_V3.img M3 firmware: v2.1rc3 Android: 5.1.1