First, Make sure your HDMI cable is not at fault ... If you are using VGA to HDMI or DVI to HDMI, they do not support audio. Third, the audio is not at mute either from the TV or the monitor.

We’ve found the best USB-C–to–HDMI, USB-C–to–DisplayPort, USB-C–to–DVI, and USB-C–to–VGA cables and adapters to help you use your new computer with the video display you prefer.

There are a wide variety of HDMI cable connections ... often below or next to the USB port, VGA input, and audio input. Newer LG TVs, such as LG's QNED MiniLED 99 series smart TVs, have an ...