Thanks for pCP !

I got a small problem, for the living room I use a Raspberry Pi model 1B with HDMI output.
I tried first with a HDMI to Toslink converter, each boot I need to connect the HDMI output to a TV, else there is no sound coming.
I then put it to and HDMI input of an home cinema amplifier I bought, but I've to start the TV at boot if not there is no sound coming.
I imagine there is an automatic config of the output at boot but is there some way to set it somewhere to avoid starting the TV each time ?