“I bought two different eBay cables first. One gave small green dots all over the screen. The other caused the screen to go off for seconds now and then.
Pay for quality!!”
“The cable is fine. Initial problems are software related if you don't get audio over HDMI. Make sure you see 3 options when "right" clicking on the desktop sound icon.
1. Analog
2. HDMI-1
3. HDMI-2”