thinkpad_acpi kernel module not picking up parameters from /etc/modprobe.d/*

[ghost]

Is this a new report?

Yes

System Info

Void 6.1.21_1 x86_64 AuthenticAMD uptodate rrrmFFFFFFF

Package(s) Affected

linux6.1-6.1.21_1

Does a report exist for this bug with the project's home (upstream) and/or another distro?

i first noticed this issue with 6.1.20_1 and initially reported it here

Expected behaviour

should be able to send commands to /proc/acpi/ibm/fan. for example: echo 'level auto' > /proc/acpi/ibm/fan

Actual behaviour

cannot send commands to /proc/acpi/ibm/fan because thinkpad_acpi.fan_control=1 is not being set correctly at boot.

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

# echo 'level auto' > /proc/acpi/ibm/fan
echo: write error: invalid argument  

Steps to reproduce

1. add the kernel module thinkpad-acpi by running: modprobe thinkpad_acpi
2. create a file in modprobe.d that contains the line options thinkpad_acpi fan_control=1
3. reboot
4. run cat /sys/module/thinkpad_acpi/parameters/fan_control. it will be incorrectly set to N

---

running rmmod thinkpad_acpi, then modprobe thinkpad_acpi to remove and add the module fixes the issue. when re-added the module gets the parameter from any file in /etc/modprobe.d/* like this:

# 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))

adding thinkpad_acpi.fan_control=1 to the kernel command line also fixes the problem and it will be set correctly on boot.