Radxa Rock 5B+ - Fan not working

[AaronNGray]

I am using :-

[ Ubuntu 24.04 (Noble)](https://dl.armbian.com/rock-5b-plus/Noble_vendor_server)

from :-

[Radxa Rock 5B Plus - Armbian](https://www.armbian.com/rock-5b-plus/) 

Trying to turn fan on on Radxa Rock 5B+

 

selecting the device using armbian-config actually makes it disappear

 

Quote

> cat usr/local/bin/test_fan_run.sh
#!/bin/bash echo "Trun on Fan"
echo 0 > /sys/devices/platform/fd8b0010.pwm/pwm/pwmchip0/export
echo 10000 > /sys/devices/platform/fd8b0010.pwm/pwm/pwmchip0/pwm0/period
echo 5000 > /sys/devices/platform/fd8b0010.pwm/pwm/pwmchip0/pwm0/duty_cycle
echo normal > /sys/devices/platform/fd8b0010.pwm/pwm/pwmchip0/pwm0/polarity
echo 1 > /sys/devices/platform/fd8b0010.pwm/pwm/pwmchip0/pwm0/enable

 

I am getting `line 3: echo: write error:Device or resource busy`

Edited Friday at 02:19 PM by AaronNGray

[e.j. Frölich]

I use the desktop version and have the same issue.

[Igor]

2 hours ago, e.j. Frölich said:

I use the desktop version

HW (features are determined by kernel used in the image) related issues are shared among all variants, desktop, cli, minimal, Debian or Ubuntu.