8.1 on Odroid N2+ issue

General Discussion
1

Hi

I’ve been running the new N2+ test image for a couple of weeks now and for the first time the board is running without reboots, freezes etc.

I’ve just noted one issue:

I have the N2 fan installed and it’s turning on and off all the time, without the cpu being used a lot and the ambient temp being OK.
Is there a way to change the trip temperatures for the fan?

2

DietPi don’t have any build in can control script. Usually you need some external script to control the fan. Mostly provided by fan manufacturers or related customer projects.

3

I found this: there are controls for the fan in the installation. Problem is to know what to change…
The /sys/devices/virtual/thermal/thermal_zone0/trip_point_4_temp is not on my installation, only goes until point_3

4

These files are not part of DietPi directly and we don’t maintain them. They are provided by the underlying base image.

5

Yes, I know. But as @MichaIng askes to report all issues with this test image I did…

6

In this case report on the related GitHub issue. There is the better place for such thinks.

7

done

8

I’ve been able to fix the issue by running:
echo 40000 | sudo tee /sys/devices/virtual/thermal/thermal_zone0/trip_point_3_temp

But it reverts to default after every reboot.
Where can I add the command to have it run after each reboot automatically?

9

For reference, fixed by running this;

echo -e '#!/bin/dash\necho 40000 > /sys/devices/virtual/thermal/thermal_zone0/trip_point_3_temp' | sudo tee /var/lib/dietpi/postboot.d/fan_temp.sh
10

going to close the discussion on the forum as all related information are on GitHub https://github.com/MichaIng/DietPi/issues/5039