How to find fan speed in Linux for CPU and GPU

To find the fan speed in Linux for the CPU and GPU, you can use the sensors command. This command can display information about the temperature, voltage, and fan speed of various sensors on your system.

To display information about the CPU and GPU fan speeds, run the sensors command with the -u option to display the output in units of degrees Celsius and RPM (revolutions per minute). The syntax is as follows:

sensors -u

This will display a list of sensors on your system, along with their current temperatures, voltages, and fan speeds. Look for the lines that show the fan speeds for the CPU and GPU.

For example, the output might look something like this:

acpitz-virtual-0
Adapter: Virtual device
temp1:        +49.0°C  (crit = +98.0°C)

coretemp-isa-0000
Adapter: ISA adapter
Package id 0:  +49.0°C  (high = +84.0°C, crit = +100.0°C)
Core 0:        +48.0°C  (high = +84.0°C, crit = +100.0°C)
Core 1:        +47.0°C  (high = +84.0°C, crit = +100.0°C)

nouveau-pci-0100
Adapter: PCI adapter
temp1:        +51.0°C  (high = +95.0°C, hyst =  +3.0°C)
                       (crit = +105.0°C, hyst =  +5.0°C)
                       (emerg = +135.0°C, hyst =  +5.0°C)
fan1:         2858 RPM

In this example, the fan speed for the CPU is not displayed, but the fan speed for the GPU is displayed.