Auto LCD on/off/ vu meters rs520

Is it possible to ad auto vu meters when using hdmi arc?
Or auto off screen after 5 sec whitout touch.

@tomashovas

I’m sorry to tell you that when using HDMI ARC you can no use vu-meter.
If you press the timer button between the message button and the headphone button on the top of the Rose device, there is a function to automatically go to Standby mode if there is no operation after the set time.
The minimum setting time is 1 minute.

Thank you

Ok, but i don’t mean standby.
I just want to have a black screen when using Arc becuse the homescreen light up to much.