Issue when applying mode to pwm

berrabe commented 2 years ago

ISSUE

IDK why, but thinkfan on my laptop do weird things. Thinkfan success read temp and choose right level mode, but when choosen mode applied to fan conf file, it's wrong. For example for temp under 50 °C set to level 1, thinkfan know that and show level 1 (3.xxx RPM) on log, but the reality on fan site is level 0 (0 RPM)

PoC

tested on ThinkPad X240 with manjaro 21.3.2 (ruah), and thinkfan 1.3.1 (AUR)

here's my thinkfan conf file

# created by berrabe (ThinkPad X240)
# references:
#   - minimal_conf: |
#     sed -E 's/^ *#.*$//g; /^$/d' /usr/share/doc/thinkfan/examples/thinkfan.yaml
#   - docs: |
#     https://wiki.archlinux.org/title/fan_speed_control#ThinkPad_laptops
#     man thinkpad.conf
#     thinkfan github issue 45 and 146
---
sensors:
  - hwmon: /sys/class/hwmon/hwmon3/temp1_input
  # - hwmon: /sys/class/hwmon
  #   name: thinkpad
  #   indices: [1]
fans:
  # - hwmon: /sys/class/hwmon/hwmon3/pwm1
  - tpacpi: /proc/acpi/ibm/fan
levels:
  - [0, 0, 40]
  - [1, 40, 50]
  - ["level auto", 50, 100]

and tested with thinkfan -n

2022-07-07_13-25 edited

vmatare commented 2 years ago

It appears you're using /proc/acpi/ibm/fan, but you're showing the contents of /sys/class/hwmon/hwmon3/pwm1*. Could you please show me the contents of /proc/acpi/ibm/fan when this happens?

Also, what happens if you actually do use /sys/class/hwmon/hwmon3/pwm1 as fan control?

vmatare commented 1 year ago

closing for lack of feedback. Feel free to reopen if new information comes up.

vmatare / thinkfan

Issue when applying mode to pwm #191

ISSUE

PoC