#X200 users: has anyone noticed a very loud high-frequency noise coming from the inverter when the monitor brightness is below max? It's not CPU frequency scaling noise---I hear that too. I'm unfortunately rather sensitive to high-frequency noises. I'm having trouble determining if this is a common issue with X200s.

If so, has anyone tried replacing the inverter, and had success in resolving the issue? I don't want to spend the money if it's not going to work. But I want to figure out something. Even if that involves hardware hacking.

On the upside, I do have #GuixSD running and everything's going pretty well!