我很久以前就看到有人问这个问题，但这个问题还没有解决。我用的是戴尔 G3。我的风扇在 Ubuntu 上完全没有反应（但在 Windows 上工作正常）。当我尝试
sudo pwmconfig
我得到：
# pwmconfig revision 6243 (2014-03-20)
This program will search your sensors for pulse width modulation (pwm)
controls, and test each one to see if it controls a fan on
your motherboard. Note that many motherboards do not have pwm
circuitry installed, even if your sensor chip supports pwm.
We will attempt to briefly stop each fan using the pwm controls.
The program will attempt to restore each fan to full speed
after testing. However, it is ** very important ** that you
physically verify that the fans have been to full speed
after the program has completed.
/usr/sbin/pwmconfig: There are no pwm-capable sensor modules installed
有什么解决办法吗？