https://bugzilla.kernel.org/show_bug.cgi?id=217225

--- Comment #9 from runrin (run....@rin.run) ---
Immediately after a reboot:


# cat /etc/modprobe.d/thinkpad_acpi.conf
options thinkpad_acpi fan_control=1

# cat /sys/module/thinkpad_acpi/parameters/fan_control
N

# cat /proc/acpi/ibm/fan
status:         enabled
speed:          3900
level:          auto

# rmmod thinkpad_acpi
# modprobe thinkpad_acpi

# cat /sys/module/thinkpad_acpi/parameters/fan_control
Y

# cat /proc/acpi/ibm/fan
status:         enabled
speed:          3900
level:          auto
commands:       level <level> (<level> is 0-7, auto, disengaged, full-speed)
commands:       enable, disable
commands:       watchdog <timeout> (<timeout> is 0 (off), 1-120 (seconds))


After a reboot, fan_control is back to `N'. I'm not sure why it's not picking
up the parameter on boot, but manually running `rmmod' then `modprobe' seems to
fix it temporarily at least.

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