When I plug my workable HDMI cable into my laptop and TV, I have visuals on TV but not audio.
I am aware that I have to default "HDMI output" when audio is plugged in, but it always is detected as "not plugged in."
Reinstallation of driver Realtek 6037 + ATI HDMI Audio Device, Realtek 6215 + ATI HDMI Audio Device do not help either.