Hi,
I have a Lenovo ThinkCentre with Linux Mint that I use to play music. Sometimes, when there’s supposed to be silence (because YouTube paused the video or something), this weird popping noise appears. It disappears whenever there’s music playing and even when I open the sound settings, but re-appears whenever there’s silence. The device is connected via aux cable to an amplifier. This happens on two separate devices.
I don’t know if it’s a Lenovo issue or a linux issue, but it’s quite annoying.
Couldn’t get the sound to play, but it’s probably the cord or the amplifier.
Try using it without the amp, if it goes away it’s the amp.
If it’s still there, try a new cord. If new cord and no amp is fine, try new cord with amp.
You might just need to turn the volume down too. Some people put one of the two at 100%, you want to keep each under like 80% to avoid distortions.
It happens on two separate devices, two separate cords, two separate amplifiers. I think it only happens after it goes on standby or sleep once.
Edit: it happens even when the pc is muted.