Discussion:
ideapad-laptop: cat fan_mode incorrect value on Lenovo S20-30
Bühmann, Raimar
2014-09-26 20:38:03 UTC
Permalink
Hi all,

on my new Lenovo S20-30 with automatically loaded kernel module
ideapad_laptop I am able to start interval mode of fan with

echo '1'>/sys/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/VPC2004:00/fan_mode

It is also possible to change it back to normal mode with '0'. But the
result of

cat /sys/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/VPC2004:00/fan_mode

shows 133. All following executions of the same cat command show 5. This
happens every time after the fan_mode has been changed.

This seams to be a bug for me. Here is more about my hardware:
https://wiki.archlinux.org/index.php/Lenovo_S20-30

Is it possible to fix this bug?

Kind regards,
Raimar

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