Mini computer/32" Samsung smart TV through HDMI - no sound.
I called Samsung Tech Support, the answer was - not compatible. Can't believe it!
The same computer worked fine with my other TV set.
Dumb idea: Have you gone into the computer, open the audio applet, maybe you have to manually tell it "AUDIO TO SAMSUNG" - My little Samsung 25" is like that, you want it to be automatic, but whatyagonnado.