Thanks. With this message do you mean that noise comes from fan, or how HWP can be involded?
I still expect the reason to be an unnecessary SSD activity during idle, so is there a way to check disk activity (reading/writing) on Qubes OS?
I have this on old Macbook Pro Retina (my HCL report) on any GNU/Linux and it still works fine. I am not sure if it is a defect or not.