Hello. I have a problem that when i use my microphone my friends hear a buzzing noise. I went to my settings and listened to my playback and it was true. The problem seems to go away when uplugging the charger from the electric socket, but while it is still plugged in the socket and not my laptop i can still hear a reduced buzzing noise. Same is with my headphones but the sound is really low but it's sometimes annoying. My laptop can't stay on battery mode because it dies pretty quickly. And im not thinking about changing my battery.
The only fix is to not have it on the charger. Which would mean replacing the battery. It is pretty normal for that to happen with some laptops. It is all about the placement of things inside (hardware).