pwmconfig不配置风扇

Question

想控制我的风扇速度。尝试过pwmconfig，但没有成功。

我明白了

hwmon1/pwm3 is currently setup for automatic speed control

这个(hwmon1/pwm3 3)是我的噪音制造者。在手动模式下需要它，而且在pwmconfig的末尾，缺少配置选项，我的意思是在5个选项中，我只得到4个，而且它似乎/etc/扇控制是emty。

编辑-2

    sudo pwmconfig
[sudo] password for seebox: 
# pwmconfig version 3.6.0
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.

Found the following devices:
   hwmon0 is coretemp
   hwmon1 is it8718

Found the following PWM controls:
   hwmon1/pwm1           current value: 254
   hwmon1/pwm2           current value: 254
   hwmon1/pwm3           current value: 254
hwmon1/pwm3 is currently setup for automatic speed control.
In general, automatic mode is preferred over manual mode, as
it is more efficient and it reacts faster. Are you sure that
you want to setup this output for manual control? (n) yes

Giving the fans some time to reach full speed...
Found the following fan sensors:
   hwmon1/fan1_input     current speed: 4218 RPM
   hwmon1/fan2_input     current speed: 0 ... skipping!

Warning!!! This program will stop your fans, one at a time,
for approximately 5 seconds each!!!
This may cause your processor temperature to rise!!!
If you do not want to do this hit control-C now!!!
Hit return to continue: 

Testing pwm control hwmon1/pwm1 ...
  hwmon1/fan1_input ... speed was 4218 now 3358
    no correlation

No correlations were detected.
There is either no fan connected to the output of hwmon1/pwm1,
or the connected fan has no rpm-signal connected to one of
the tested fan sensors. (Note: not all motherboards have
the pwm outputs connected to the fan connectors,
check out the hardware database on http://www.almico.com/forumindex.php)

Did you see/hear a fan stopping during the above test (n)? n

Testing pwm control hwmon1/pwm2 ...
  hwmon1/fan1_input ... speed was 4218 now 3169
    no correlation

No correlations were detected.
There is either no fan connected to the output of hwmon1/pwm2,
or the connected fan has no rpm-signal connected to one of
the tested fan sensors. (Note: not all motherboards have
the pwm outputs connected to the fan connectors,
check out the hardware database on http://www.almico.com/forumindex.php)

Did you see/hear a fan stopping during the above test (n)? n

Testing is complete.
Please verify that all fans have returned to their normal speed.

The fancontrol script can automatically respond to temperature changes
of your system by changing fanspeeds.
Do you want to set up its configuration file now (y)? y
What should be the path to your fancontrol config file (/etc/fancontrol)? 
Loading configuration from /etc/fancontrol ...

Select fan output to configure, or other action:
1) Change INTERVAL     3) Save and quit
2) Just quit           4) Show configuration

select (1-n):

Answer 1

看起来pwm3在测试过程中被跳过了。尝试将文件/sys/devices/platform/it87.656/hwmon/hwmon1/pwm3_enable编辑为root，并将其值设置为1，从而启用它。然后再次运行pwmconfig。您还可以通过编辑/sys/devices/platform/it87.656/hwmon/hwmon1/pwm3并将其设置为0-255之间的值来手动设置风扇速度。