Your devices may come with an HDMI cable, but it doesn't mean it's the best one for the job.
Cycle TV inputs first — you may be on the wrong one. Swap the cable to another device to see if the cable or device is faulty. Inspect the HDMI for frays or exposed wires; braided cables resist damage ...
If there is no sound when your computer is connected to your TV with an HDMI cable, use the fixes provided below to get rid of this problem. It is important that the audio device you want to use is ...