mac mini M2 will not send sound to
Mac mini M2 hooked up to a LS27A800U Samsung 4K monitor (with speakers). Output channel under sound shows the monitor correctly and when I highlight, no sound. If I choose any of the speakers in my house (Sonos), Apple TV or Samsung TVs music will play via Airplay. The monitor, hooked up by HDMI, won't play music or any computer sound effects.
What gives? Volume is up, mute is not engaged on the monitor or the Mac software. In fact when I choose the output as the monitor the output volume is not an option (greyed out). Any ideas?