I have a problem with my laptop. It has Win 10(64bit) with Realtek High Definition Audio.
Whenever I plug my headphones into the headphone jack, I hear a constant high frequency beep on the right headphone. It's not loud but annoying. Even if I mute everything, disable microphone input, unplug all usb etc, I can still hear it. With cheap headphones, I can't hear the beep( mostly because the high frequency is only noticable with quality headphones).
I tried uninstalling the driver and reinstall it, but I keep hearing the beep.
But I've found a little solution: When I go to the volume mixer, and press on the system sound bar and the typical windows sound appear, and plug the headphones while the sound is still playing, then I don't hear the high frequency beep anymore as long as the system is not off. Even when I unplug and plug the headphones , there is no beep. But when I unplug the headphone, wait some seconds and then plug them again, the beep appears again.
I really want to fix this problem so I don't want to depend on that trick. What could be the cause of this beep?