FAN Control

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
#1

Hello, I cant control the fan of my Jetson…

When I type the normal:

sudo cat /sys/kernel/debug/tegra_fan/temp_control

I get:

cat: /sys/kernel/debug/tegra_fan/temp_control: No such file or directory

also:

echo 255 > /sys/kernel/debug/tegra_fan/target_pwm
bash: /sys/kernel/debug/tegra_fan/target_pwm: No such file or directory

What is wrong??

I am using:

root@xavier-desktop:/home# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.2 LTS
Release: 18.04
Codename: bionic

Thank you in Advance…

#2

NVIDIA Jetson AGX Xavier
L4T 32.2.1 [ JetPack UNKNOWN ]
Board: t186ref
Ubuntu 18.04.2 LTS
Kernel Version: 4.9.140-tegra
CUDA 10.0.326

This is my configuration

#3

How about running “sudo -s” first and see if you can see that path.

#4

I did that, working with root…

#5

But i can see the sys an debug directory but nothing to controll the fan…

#6

I think you find the wrong path.

Should be “root@nvidia-desktop:/sys/devices/pwm-fan”

#7

I will try that soon!

#8