我的也有這個問題--usb 供電不足

https://ghostsinthelab.org/2017/11/09/%e4%bf%ae%e5%a5%bd%e4%ba%86%e9%9b%bb%e5%a3%93%e4%b8%8d%e8%b6%b3%e7%9a%84-raspberry-pi/