Bug: fan spinning on max pwm even when temperature is low enough

[tandy-1000]

I notice sometimes that the temperature is around 34 degrees but the fan is stuck spinning at 255 pwm.
If I restart the ATS service, the pwm goes down to 0 because of the low temperature.

Hardware:
RockPro64 dietpi with ats master

Please let me know if you need any more information

[Morpheus2018]

I notice sometimes that the temperature is around 34 degrees but the fan is stuck spinning at 255 pwm.
If I restart the ATS service, the pwm goes down to 0 because of the low temperature.

Hardware:
RockPro64 dietpi with ats master

I have the same problem, fan keeps spinning 24/7.

:~$ sudo ats -t
info:'SYSTEM' Table
info: 'BOARD' Table
info: 'NAME' = ROCKPRO64
info: 'CPU' = RK3399
info: 'THERMAL0_CTL' = /sys/class/thermal/thermal_zone0/temp
info: 'THERMAL1_CTL' = /sys/class/thermal/thermal_zone1/temp
info: 'PWM_CTL' = ERROR
info: 'MAX_CONTINUOUS_THERMAL_TEMP' = 60
info: 'MIN_CONTINUOUS_THERMAL_TEMP' = 50
info: 'MAX_PWM' = 255
info: 'MIN_PWM' = 40
info: 'ALWAYS_ON' = false
info: 'PROFILE_NAME' = profile0
info: 'PROFILE' = 0
info:'Pratio' timers
info: 'Pratio[ -20 - 50 [' = 0
info: 'Pratio[ 50 ]' = 40
info: 'Pratio[ 51 ]' = 61
info: 'Pratio[ 52 ]' = 83
info: 'Pratio[ 53 ]' = 104
info: 'Pratio[ 54 ]' = 126
info: 'Pratio[ 55 ]' = 147
info: 'Pratio[ 56 ]' = 169
info: 'Pratio[ 57 ]' = 190
info: 'Pratio[ 58 ]' = 212
info: 'Pratio[ 59 ]' = 233
info: 'Pratio[ 60 ]' = 255
info: 'Pratio[ 60 - 70 [' = 255
Stop ATS Service first [ service ats stop ]..

:~$ systemctl status ats.service
● ats.service - ATS - Active Thermal Service
Loaded: loaded (/usr/local/lib/luarocks/rocks/ats/master-0/ats.service; enabled; vendor preset: enabled)
Active: active (running) since Wed 2021-02-24 18:23:19 CET; 1h 12min ago
Main PID: 16609 (lua)
Tasks: 1 (limit: 4382)
Memory: 336.0K
CGroup: /system.slice/ats.service
└─16609 lua /usr/local/sbin/ats

Feb 24 18:23:19 RockHomeServer systemd[1]: Started ATS - Active Thermal Service.

:~$ sudo ats -v
ATS --- Active Termal Service, Powered by: Lua 5.3
-- Copyright © 2018 Carlos Dominguestuxd3v@sapo.pt
-- Version: 0.2.0

[tuxd3v]

Hello ,
Check if the temperature entries in the /sys is correct,
Wha is the output of this?

find /sys -name temp\*

[Morpheus2018]

Hello ,
Check if the temperature entries in the /sys is correct,
Wha is the output of this?

find /sys -name temp\*

$ sudo find /sys -name temp\*
/sys/devices/virtual/thermal/thermal_zone0/hwmon0/temp1_crit
/sys/devices/virtual/thermal/thermal_zone0/hwmon0/temp1_input
/sys/devices/virtual/thermal/thermal_zone0/temp
/sys/devices/virtual/thermal/thermal_zone1/temp
/sys/devices/virtual/thermal/thermal_zone1/hwmon1/temp1_crit
/sys/devices/virtual/thermal/thermal_zone1/hwmon1/temp1_input
/sys/firmware/devicetree/base/thermal-zones/gpu/trips/gpu_alert0/temperature
/sys/firmware/devicetree/base/thermal-zones/gpu/trips/gpu_crit/temperature
/sys/firmware/devicetree/base/thermal-zones/cpu/trips/cpu_crit/temperature
/sys/firmware/devicetree/base/thermal-zones/cpu/trips/cpu_alert0/temperature
/sys/firmware/devicetree/base/thermal-zones/cpu/trips/cpu_alert1/temperature

[tuxd3v]

hello Morpheus2018,
if you do:

cat /sys/devices/virtual/thermal/thermal_zone0/hwmon0/temp1_input
cat /sys/devices/virtual/thermal/thermal_zone1/hwmon1/temp1_input
cat /sys/devices/virtual/thermal/thermal_zone0/temp
cat /sys/devices/virtual/thermal/thermal_zone1/temp

does the temperature is low?
this are the places you should have in '/etc/ats,conf'`
as 'THERMAL{0,1}_CTL'

but looking at your 'ats -t'
you have:
info: 'PWM_CTL' = ERROR

What is the output of this?

find /sys -name pwm\*

You should have a valid PWM entry in '/etc/ats.conf' as PWM_CTL..
For what I see ats can't set pwm because its in error :/

[Morpheus2018]

if i do:

cat /sys/devices/virtual/thermal/thermal_zone0/hwmon0/temp1_input
45000
cat /sys/devices/virtual/thermal/thermal_zone1/hwmon1/temp1_input
43888
cat /sys/devices/virtual/thermal/thermal_zone0/temp
45000
cat /sys/devices/virtual/thermal/thermal_zone1/temp
43333

the numbers are changing too!

What is the output of this?

find /sys -name pwm\*

output is...
~$ sudo find /sys -name pwm*
/sys/kernel/debug/tracing/events/pwm
/sys/kernel/debug/tracing/events/pwm/pwm_apply
/sys/kernel/debug/tracing/events/pwm/pwm_get
/sys/kernel/debug/pwm
/sys/kernel/debug/regulator/vcc12v_dcin/pwm-fan-fan
/sys/class/pwm
/sys/class/pwm/pwmchip2
/sys/class/pwm/pwmchip0
/sys/class/pwm/pwmchip1
/sys/devices/platform/ff420020.pwm/pwm
/sys/devices/platform/ff420020.pwm/pwm/pwmchip2
/sys/devices/platform/ff420010.pwm/pwm
/sys/devices/platform/ff420010.pwm/pwm/pwmchip1
/sys/devices/platform/ff420000.pwm/pwm
/sys/devices/platform/ff420000.pwm/pwm/pwmchip0
/sys/devices/platform/pwm-fan
/sys/devices/platform/pwm-fan/hwmon/hwmon3/pwm1
/sys/devices/platform/vcc12v-dcin/regulator/regulator.1/pwm-fan-fan
/sys/bus/platform/devices/pwm-fan
/sys/bus/platform/drivers/pwm-clock
/sys/bus/platform/drivers/pwm-fan
/sys/bus/platform/drivers/pwm-fan/pwm-fan
/sys/bus/platform/drivers/pwm-regulator
/sys/firmware/devicetree/base/pwm@ff420020
/sys/firmware/devicetree/base/pwm@ff420010
/sys/firmware/devicetree/base/pwm@ff420000
/sys/firmware/devicetree/base/pinctrl/pwm1
/sys/firmware/devicetree/base/pinctrl/pwm1/pwm1-pin
/sys/firmware/devicetree/base/pinctrl/pwm1/pwm1-pin-pull-down
/sys/firmware/devicetree/base/pinctrl/pwm3a
/sys/firmware/devicetree/base/pinctrl/pwm3a/pwm3a-pin
/sys/firmware/devicetree/base/pinctrl/pwm2
/sys/firmware/devicetree/base/pinctrl/pwm2/pwm2-pin
/sys/firmware/devicetree/base/pinctrl/pwm2/pwm2-pin-pull-down
/sys/firmware/devicetree/base/pinctrl/pwm0
/sys/firmware/devicetree/base/pinctrl/pwm0/pwm0-pin-pull-down
/sys/firmware/devicetree/base/pinctrl/pwm0/pwm0-pin
/sys/firmware/devicetree/base/pinctrl/pwm3b
/sys/firmware/devicetree/base/pinctrl/pwm3b/pwm3b-pin
/sys/firmware/devicetree/base/vdd-log/pwms
/sys/firmware/devicetree/base/pwm-fan
/sys/firmware/devicetree/base/pwm-fan/pwms
/sys/firmware/devicetree/base/symbols/pwm3a_pin
/sys/firmware/devicetree/base/symbols/pwm0_pin
/sys/firmware/devicetree/base/symbols/pwm3
/sys/firmware/devicetree/base/symbols/pwm3b_pin
/sys/firmware/devicetree/base/symbols/pwm1
/sys/firmware/devicetree/base/symbols/pwm1_pin
/sys/firmware/devicetree/base/symbols/pwm1_pin_pull_down
/sys/firmware/devicetree/base/symbols/pwm2_pin
/sys/firmware/devicetree/base/symbols/pwm2
/sys/firmware/devicetree/base/symbols/pwm2_pin_pull_down
/sys/firmware/devicetree/base/symbols/pwm0
/sys/firmware/devicetree/base/symbols/pwm0_pin_pull_down
/sys/firmware/devicetree/base/pwm@ff420030
/sys/module/pwm_fan

The only way to slow the fan down is for me like this:

sudo find /sys -name pwm1 | grep hwmon
/sys/devices/platform/pwm-fan/hwmon/hwmon3/pwm1
cat /sys/devices/platform/pwm-fan/hwmon/hwmon3/pwm1
255
sudo nano /sys/devices/platform/pwm-fan/hwmon/hwmon3/pwm1
cat /sys/devices/platform/pwm-fan/hwmon/hwmon3/pwm1
200

[tuxd3v]

hello,
For what I see,
In '/etc/ats.conf'
use for PWM_CTL, the '/sys/devices/platform/pwm-fan/hwmon/hwmon3/pwm1' :)

And your problem should be fixed :)

[Morpheus2018]

In '/etc/ats.conf'
use for PWM_CTL, the '/sys/devices/platform/pwm-fan/hwmon/hwmon3/pwm1' :)

And your problem should be fixed :)

now

-- FAN Control[ String ]
       PWM_CTL         = {
                       "/sys/class/hwmon/hwmon0/pwm1",
                       "/sys/devices/platform/pwm-fan/hwmon/hwmon0/pwm1",
                       "/sys/devices/platform/pwm-fan/hwmon/hwmon1/pwm1",
                       "/sys/devices/platform/pwm-fan/hwmon/hwmon3/pwm1"
       },

cat /sys/devices/platform/pwm-fan/hwmon/hwmon3/pwm1
0

$ sudo ats -t
info:'SYSTEM' Table
info: 'BOARD' Table
info: 'NAME' = ROCKPRO64
info: 'CPU' = RK3399
info: 'THERMAL0_CTL' = /sys/class/thermal/thermal_zone0/temp
info: 'THERMAL1_CTL' = /sys/class/thermal/thermal_zone1/temp
info: 'PWM_CTL' = /sys/devices/platform/pwm-fan/hwmon/hwmon3/pwm1
info: 'MAX_CONTINUOUS_THERMAL_TEMP' = 60
info: 'MIN_CONTINUOUS_THERMAL_TEMP' = 50
info: 'MAX_PWM' = 255
info: 'MIN_PWM' = 40
info: 'ALWAYS_ON' = false
info: 'PROFILE_NAME' = profile0
info: 'PROFILE' = 0
info:'Pratio' timers
info: 'Pratio[ -20 - 50 [' = 0
info: 'Pratio[ 50 ]' = 40
info: 'Pratio[ 51 ]' = 61
info: 'Pratio[ 52 ]' = 83
info: 'Pratio[ 53 ]' = 104
info: 'Pratio[ 54 ]' = 126
info: 'Pratio[ 55 ]' = 147
info: 'Pratio[ 56 ]' = 169
info: 'Pratio[ 57 ]' = 190
info: 'Pratio[ 58 ]' = 212
info: 'Pratio[ 59 ]' = 233
info: 'Pratio[ 60 ]' = 255
info: 'Pratio[ 60 - 70 [' = 255
Stop ATS Service first [ service ats stop ]..

now seems to be working again!
why has / hwmon3 / changed automatically?
For me it's solved first, thank you very much!

[tuxd3v]

hello Morpheus2018,
Nice you succeed :)

yeah, the Mainline kernel is a bit dynamic,,on reboot it sometimes change the paths :/
that's why we have in '/etc/ats.conf' so many options .. for control files in sysfs..
When ATS starts, it will check all links and see what of them are valid, and will stay with valid ones :)

Best Regards,
tux