Fan speed of LS-WXL with Debian 12

[eugrus]

So I've installed Debian 12 onto LS-WXL. Regards to 1000001101000 for the install image.

The fan is just running full speed all the time. The air comes out cold.

The sensors output is not informative (in terms of temperature):

Code: [Select]

# sensors
gpio_fan-isa-0000
Adapter: ISA adapter
fan1:        5000 RPM  (min =    0 RPM, max = 5000 RPM)
sensors-detect finds no sensors

Code: [Select]

# /sbin/sensors-detect
# sensors-detect version 3.6.0
# DMI data unavailable, please consider installing dmidecode 2.7
# or later for better results.
# Kernel: 6.1.85 armv5tel
# Processor: Feroceon 88FR131 rev 1 (v5l)

This program will help you determine which kernel modules you need
to load to use lm_sensors most effectively. It is generally safe
and recommended to accept the default answers to all questions,
unless you know what you're doing.

Some south bridges, CPUs or memory controllers contain embedded sensors.
Do you want to scan for them? This is totally safe. (YES/no):
modprobe: FATAL: Module cpuid not found in directory /lib/modules/6.1.85
Failed to load module cpuid.
Silicon Integrated Systems SIS5595...                       No
VIA VT82C686 Integrated Sensors...                          No
VIA VT8231 Integrated Sensors...                            No
AMD K8 thermal sensors...                                   No
AMD Family 10h thermal sensors...                           No
AMD Family 11h thermal sensors...                           No
AMD Family 12h and 14h thermal sensors...                   No
AMD Family 15h thermal sensors...                           No
AMD Family 16h thermal sensors...                           No
AMD Family 17h thermal sensors...                           No
AMD Family 15h power sensors...                             No
AMD Family 16h power sensors...                             No
Hygon Family 18h thermal sensors...                         No
Intel digital thermal sensor...                             No
Intel AMB FB-DIMM thermal sensor...                         No
Intel 5500/5520/X58 thermal sensor...                       No
VIA C7 thermal sensor...                                    No
VIA Nano thermal sensor...                                  No

Lastly, we can probe the I2C/SMBus adapters for connected hardware
monitoring devices. This is the most risky part, and while it works
reasonably well on most systems, it has been reported to cause trouble
on some systems.
Do you want to probe the I2C/SMBus adapters now? (YES/no):
Sorry, no supported PCI bus adapters found.

Sorry, no sensors were detected.
Either your system has no sensors, or they are not supported, or
they are connected to an I2C or SMBus adapter that is not
supported. If you find out what chips are on your board, check
https://hwmon.wiki.kernel.org/device_support_status for driver status.
Is there a way to activate the sensors or do I have to speed down the fans manually via fancontrol or something?

Or are there actually no sensors and the stock firmware just did speed down the fan after the boot?