Problem with Sony HT-SF150

[Phil323UK]

Thanks for all replies, you are right. The soundbar is connected to the TV via HDMI ARC. I didn’t know that they are so different. In this case I cannot do more than keeping TV on, which is not nice, but acceptable solution.

Kent is right, HDMI ARC is the issue here.

If you want to use your soundbar without turning your TV on, why not use Bluetooth?

Another option is a Pi hat with digital output, and connect it that way.