U2722D, speaker not working

Hi,

As the title suggests, the built-in monitor speakers aren’t producing any sound, even though I’ve selected the monitor as the main audio output device. The monitor connects successfully, but there’s no audio output, even though I can see that sound is playing. I’ve tried it on both my Dell laptop and MacBook, but the issue persists on both. I’ve also updated all relevant drivers, but that didn’t help.

Best regards