Fan on a Rock 5A

#1

Hi,

So have I have tired to get the Radxa fan to start, nothing is working. The only guide I have found is the Radxa Rock 5 B.

How can I get the fan to work?

TerrorPUP

#2

This works without a problem on 5A (on Joshua Riek’s Ubuntu and on Armbian).

#3

I can confim that this doesn’t work on the Radxa image (build 17). How can i edit the fancurve because armbian-add-overlay is not present in this image…

#4

Why are you not using Armbian in first place?

#5

i don’t know, i just the radxa version in the hopes it would be the fastest…

I’m now flashing armbian

#6

Please can you advise how to enable the pam-fan on Joshua Riek’s Ubuntu. I have tried adding pam-fan as an overlay in the ubuntuEnv.txt file and lsmod shows the pwm-fan module as loaded but not used by anything. There is also no pam-fan device in the /dev directory. I’m obviously missing something so any guidance would be gratefully received.

#7

You don’t need any overlays, it works without configuration (admittedly the fan curve is not very good, but it just works). At least for me. It’s pwm, not pam

#8

Thanks for the reply. Sorry, I hadn’t noticed that the iPad spelling autocorrect had changed pwm to pam for some reason. Does the pwm-fan device show up under /dev or not when it’s working?

#9

I’m not sure, but the easiest way to check if it works is to run stress-ng -c 8 and leave it for a minute. Right now it spins up around 60 °C.

#10

It’s still not working for me, I’m getting these errors in the system log:-
pwm-fan pwm-fan: Looking up fan-supply from device tree
pwm-fan pwm-fan: Looking up fan-supply property in node /pwm-fan failed

#11

I think it would be better to raise an issue with Joshua Riek: https://github.com/Joshua-Riek/ubuntu-rockchip

#12

OK Thanks for your help :slight_smile: