Hi,

I bought the above monitor from Amazon about 18 months ago and have been using it without any major issues since then. I've always connected some external speakers powered through the USB on the side of the monitor and plugged into the headphone jack. The monitor is connected to the PC via DisplayPort for the audio source.

Without any changes to the system this stopped working a few days ago. I've run the Windows 10 audio troubleshooting and it says I there's nothing plugged in ,although this could be referring to the fact there's nothing plugged into the PC itself. I've tried the following:

Plugged headphones into the monitor - still no sound
Plugged headphones into the PC itself - sound works
Updated all the drivers on the PC that needed updating - still no sound
Checked all the settings on the OSD to make sure sound should be coming out of the monitor

So it seems that the problem lies with the headphone jack itself or something else on the monitor. Has anyone experienced this before or can anyone suggest any other troubleshooting I could do?