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Drivers & Software

bitfire777
Journeyman III

Fan input value not working for RX5500 (Navi)

Hello.

I want to get GPU fan speed on Ubuntu 20.04 via sysfs interface.

There is a Linux kernel documentation - https://www.kernel.org/doc/Documentation/hwmon/sysfs-interface

So I'm executing the next command to get fan input value:

cat /sys/class/drm/card0/device/hwmon/hwmon3/fan1_input

I've tried different versions of drivers: 20.30, 20.40, 20.45, 20.50, but got the same result 0. 

At the same time this command works well for RX 470/570 GPUs, but it does not work with Navi RX5500XT GPU. It always return 0.  

Thanks

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