Re: [ibm-acpi-devel] fan inhibited by kernel's acpi: which info to provide?

[Raph <gib...@gm...>]

On Tue, Oct 10, 2017 at 02:37:00AM -0300, Henrique de Moraes Holschuh wrote:
> Please boot with fan_control=1 debug=0x8011

sorry, Henrique, for the late reply (and thank you for your patient guidance!).

Attached is
> dmesg |egrep 'thinkpad|ACPI|acpi|fan|cool'
(with acpi_cpufreq debug on)

Part of thinkpad_acpi init debug messages are:
> [   19.416358] thinkpad_acpi: ibm_init: probing for fan
> [   19.417572] thinkpad_acpi: ibm_init: fan installed

and when I try to set fan to enable/7:
> [ 1130.951198] thinkpad_acpi: procfs fan: PID 7250: set level to 7
> [ 1135.041563] thinkpad_acpi: procfs fan: PID 7250: enable

but ... the "fan" module is not loaded (and fan does not start)

I mounted debugfs/booted using various variations of:
> acpi.dyndbg="+p; file ec.c -p"
> fan.dyndbg=+p
> acpi_cpufreq.dyndbg=+p
> acpi.debug_layer=0x04200002
> acpi.debug_level=0x02000027
... got a lot of noise that I tried to filter, but still no hope so far.