¶ The problem
TODO: this guide is not finished.
Control (lower) fanspeeds on Ubuntu PC.
On Ubuntu/Debian (Proxmox) this can be achieved by installing the lm-sensors package to read the CPU temperature data and fancontrol to control the fan speeds.
¶ Solution
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Open a shellsession session to the server and login.
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Install the
lm-sensorsandfancontrolpackages.sudo apt update && sudo apt install lm-sensors fancontrol -
Configure lm-sensors as follows:
sudo sensors-detectAnswer YES (
y) to all YES/no questions. Be careful if you have a different mainboard. I read that it might give problems if non-existing sensors are being read.
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At the end of sensors-detect, a list of modules that need to be loaded will be displayed. Type
yesoryto have sensors-detect insert those modules into /etc/modules.
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Load the added modules. This will read the changes you made to /etc/modules in the previous step, and insert the new modules into the kernel.
sudo service kmod start -
Now configure fancontrol.
sudo pwmconfigThis script will stop each fan for a few seconds to find out which fans can be controlled by which PWM handle. For me only one channel was found as the case fans do not use PWM.
If you get an error
/usr/sbin/pwmconfig: There are no pwm-capable sensor modules installed, first try to reboot your machine. If that doesn't work, addnct6775to/etc/modules.
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You will have to specify what sensors to use to link the fanspeed to temperature changes. For the CPU fan make sure to use a sensor that measures your core CPU temperature to base the fan speed on.
This is a bit tricky as the sensor is named differently in fancontrol and lm-sensors. I ran
sensorsin another shellsession to help me find the right sensor. In my case the CPU temperature sensorcoretemp-isa-0000was named athwmon1in fancontrol, so I tookhwmon1/temp1_inputto correlate the fanspeed to the temperature.
Now run through the prompts and save the changes to the default location. Optionally you can make adjustments to fine-tune
/etc/fancontrol, but I took all the default values. Apply your changes by restarting the fancontrol service.sudo systemctl restart fancontrol -
To make the fancontrol service run automatically at system startup run:
sudo systemctl start fancontrol
Sources:
https://manpages.debian.org/stretch/fancontrol/fancontrol.8.en.html
https://manpages.debian.org/stretch/lm-sensors/sensors.1.en.html
https://iandw.net/2014/10/12/fancontrol-under-ubuntu-14-04-resolving-usrsbinpwmconfig-there-are-no-pwm-capable-sensor-modules-installed/
https://askubuntu.com/questions/22108/how-to-control-fan-speed/46135#46135
https://stackoverflow.com/questions/49377334/usr-sbin-pwmconfig-there-are-no-pwm-capable-sensor-modules-installed-msi-ubun
https://mypkb.wordpress.com/2015/09/19/linux-mint-17-2-on-asus-z87-pro-retrieving-fan-information/