Discussion around the Framework mission of building products that last longer by making them upgradeable, customizable, and repairable. Consumer electronics can be better for you and for the environment.
On Fedora 39. Basically when I plug in a microSD into my framework expansion card it always reports 100% usage on powertop even if I'm not using or accessing it. I don't really see why this should be happening. Any way to limit the power that the microSD card uses? Tried with both a PNY and a Samsung microSD, same result. (Although the PNY reported 4 watts instead of 3.5 watts)
Edit: I misunderstood. 100% core use all the time for no reason isn’t normal.
My first thought would be driver or kernel bug, or a runaway parent process.
For a fuller view of resource usage, I would use either atop or htop. While debugging, you can prlimit with the pid flag to save battery.