My pc has Kubuntu 17.04 and windows 10 setup with dual boot.
When i boot to kubuntu as soon as the login screen shows i hear high pitch coil whine sound from my pc.
I disabled all the power states on my bios (i know it can cause it). It didn't help.
whenever theres a little load on the cpu the noise stops.
Needless to say it doesn't happen on windows 10.
- cpu: core i5-2500k
- mobo: Z68AP-D3