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Cooling Fan
Introduction
This page mainly introduces Cooling Fan. The first half describes how to control the Cooling Fan on Ubuntu, and the second half describes how to control the Cooling Fan on Android.
Ubuntu
Fan Application
The following method is recommended if you are using desktop OS. Find Fan Setting from the applications list. Open the app to control the cooling fan speed.
Command Line
You can also use command to control the FAN from terminal.
Set the fan mode
fan.sh off fan.sh on fan.sh auto
Get the fan mode
fan.sh mode
Set the fan speed
fan.sh high fan.sh mid fan.sh low
Get CPU temperature
fan.sh temp
Get the trigger temperature
You can get the trigger temperature from the nodes below:
- low - /sys/class/fan/trigger_temp_low
- mid - /sys/class/fan/trigger_temp_mid
- high - /sys/class/fan/trigger_temp_high
e.g. Get the low trigger temperature:
cat /sys/class/fan/trigger_temp_low
Set the trigger temperature
You can setup the trigger temperature from the nodes below:
- low - /sys/class/fan/trigger_temp_low
- mid - /sys/class/fan/trigger_temp_mid
- high - /sys/class/fan/trigger_temp_high
e.g. Set the low trigger temperature to 40 Celsius.
echo 40 | sudo tee /sys/class/fan/trigger_temp_low
The trigger temperature only effect the fan works in auto mode.
Android
Just goto the system setting to control the FAN.