I have a DVR (slave) connected to a computer monitor as HDMI-2. My computer is connected to this monitor as HDMI-1. When I try to watch TV on this monitor (HDMI-2), video is fine but the only sound I obtain is through the puny speakers built into the monitor. I want to be able to use the surround sound speakers connected to the computer. So, I've attempted to use the optical audio plug on the back of the DVR unit. The sound card in my computer has optical audio in and out ports. I connected a plug from the optical audio plug on the DVR unit to the optical audio "in" plug on the sound card. However it isn't working. The only sound I get continues to come from the tiny speakers inside the monitor.
Can anyone offer me advise how I can get the TV connected to HDMI-2 to use the speakers connected to the computer?
Thank you very kindly.
David