no sound on samsung LU28R55 on Mac mini Pro

Hi,GornalMan, your Mac mini 2023 supports hdmi out, Thunderbolt 4 over usb-c which supports DisplayPort/Mini DisplayPort ( with appropriate adapters ) , your monitor will do hdmi 2.0 and DisplayPort 1.2.. go to Audio Midi Setup, under “Utilities” and see if you can set the audio/sound output to HDMI audio( if you’re connecting to that monitor via hdmi, the cable you use should be hdmi 2.0 and support hdcp 2.2)

just a guess

john b

GornalMan wrote:

No sound on Samsung LU28R55 on Mac mini Pro 2023 model connected via HDMI

....can't get this monitor to produce sound other than from its headphone jack. ...

Based on the specs, there is no mention what so ever of a speaker in that display.

On page 20 of the manual is a indication that there is none:

"― Use headphones or earphones when activating sound with an HDMI-HDMI or DP cable."

The other clue is based on the fact that you get sound out of the headphone jack which means the Mini is delivering audio over HDMI! In this case, there is nothing you can do with the Mini to resolve the situation. So, if the Mini is delivering the sound, the it is an issue with the display not having a speaker!

There are no speakers on that display as I previously mentioned. In addition, on this page:

https://eu.community.samsung.com/t5/computers-it/no-sound-on-samsung-lu28r55-monitor/td-p/4368695

JMyers posteed:

"I learned the hard way that these monitors don't actually have speakers. It's very odd since they have volume controls, the computer recognizes them as having speakers and even acts as if audio is being sent to them but upon contacting technical support, I was informed that they don't actually have speakers. I then reviewed the specs on their website a little closer and saw that the full specs have "Speakers: No" listed."