How do I connect a 5.1 surround sound system to Netflix?

I have a Sony Blueray player with 5.1 surround sound. When I use a DVD / blue ray it works fine too. Only when I watch Netflix e.g. Want to connect via my PC to go boxing only 2.

I have this audio connection at the back, which I use for PC etc., can it transmit 5.1 at all? ( See photo)

Had also considered whether I don't have to connect the boxes to the player but somehow connect directly to the PC / television?

If someone has an idea how I can get this to work I would be very grateful!

LG Xentox

You need the pc 5.1 audio output.

Have to set on the PC.

What if I connect it directly to the television (or projector)?

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