I finally switched my old Macbook (7,1, Mid 2010) over from macOS to Fedora Workstation 32 Gnome. Now when using it with brightnesses between 10% and 25% it makes some wheezing (“pfeifen” in German) noices. At other brightnesses also, but in most cases to quiet to be heard. I don’t know, whether it’s the digital-to-analog-converter (or pulse-width modulation) or anything else. I could live with it, but fear, it is damaging my Macbook. I had it also once in Windows 10 (Bootcamp).
Does anybody have an idea? I am a Linux beginner and a Fedora newbie. So please explain in details. Thanks in advance.