Home theater set up. I have Onkyo 605. Ran HDMI to tv from receiver - optical from blu ray to

Question

I have Onkyo 605. Ran HDMI to tv from receiver - optical from blu ray to receiver and hdmi. NO video. SO I ran HDMI directly to tv from blu ray and optic to receiver. Now I get a picture but the back speakers do not work. I doesn't sound surround. The back speakers test ok but no sound with videos. How is best to hook up - blu ray(sony), receiver, and tv (plasma panasonic on hdmi input)? Thanks Shar