I'm a heavy user of the StackOverflow community, and after a bit of research I found that this is the StackExchange community that might help me out.
I've been bought a headset that has 2 3.5mm jacks, HiFi, one is the actual speakers on the headset, the other one is the microphone. Here's a bit of a breakdown of the problem:
On the PC(Windows 10):
I plug in the headphones only -- slight buzzing noise. When I start an application, whether it's a game or an IDE, the buzzing is louder.
I plug in the headphones PLUS mic, the buzzing gets really loud. Even louder when I open anything else.
On my Dell Monitor (which has an audio-in/out)
I plug in the headphones -- no buzzing noise. No buzzing noise when I start any application.
I plug in the mic (in the pc) while the headphones are plugged in the Monitor, again loud buzzing noise.
What I've tried
My PC power supply cable was plugged in an extension cable with some other components. I thought it might be a grounding issue, so I unplugged it and plugged it into its separate socket. Did not solve my problem.
What else can I try? At the moment my headphones are plugged in in the monitor and I don't have any problems. But sometimes I would like to use my mic as well. Any ideas?