Unable to make thinkfan work - ERROR: /sys/class/hwmon/hwmon0/temp1_input: No such file or directory
I followed several guides to setup Thinkfan on my Thinkpad T420 as well as I could but I am still not able to get it working.
Error
$ sudo thinkfan -n
ERROR: /sys/class/hwmon/hwmon0/temp1_input: No such file or directory
Configs
thinkfan/hirsute,now 1.2.1-2 amd64 [installed]
lm-sensors/hirsute,now 1:3.6.0-7 amd64 [installed]
$ sensors
thinkpad-isa-0000
Adapter: ISA adapter
fan1: 3575 RPM
BAT0-acpi-0
Adapter: ACPI interface
in0: 12.44 V
coretemp-isa-0000
Adapter: ISA adapter
Package id 0: +57.0°C (high = +86.0°C, crit = +100.0°C)
Core 0: +55.0°C (high = +86.0°C, crit = +100.0°C)
Core 1: +56.0°C (high = +86.0°C, crit = +100.0°C)
acpitz-acpi-0
Adapter: ACPI interface
temp1: +55.0°C (crit = +98.0°C)
$ cat /etc/modules-load.d/modules.conf
# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
# Generated by sensors-detect on Fri May 14 08:59:44 2021
# Chip drivers
coretemp
# Generated by sensors-detect on Fri May 14 22:52:42 2021
# Chip drivers
coretemp
$ cat /etc/thinkfan.conf
sensor /sys/devices/platform/coretemp.0/hwmon/hwmon3/temp3_input
sensor /sys/devices/platform/coretemp.0/hwmon/hwmon3/temp1_input
sensor /sys/devices/platform/coretemp.0/hwmon/hwmon3/temp2_input
sensor /sys/devices/virtual/thermal/thermal_zone0/hwmon1/temp1_input
(0, 0, 42)
(1, 40, 47)
(2, 45, 52)
(3, 50, 57)
(4, 55, 62)
(5, 60, 67)
(6, 65, 72)
(7, 70, 77)
(127, 75, 32767)
$ find /sys/devices -type f -name "temp*_input"
/sys/devices/platform/coretemp.0/hwmon/hwmon3/temp3_input
/sys/devices/platform/coretemp.0/hwmon/hwmon3/temp1_input
/sys/devices/platform/coretemp.0/hwmon/hwmon3/temp2_input
/sys/devices/virtual/thermal/thermal_zone0/hwmon1/temp1_input
$ cat /etc/modprobe.d/thinkfan.conf
options thinkpad_acpi fan_control=1
$ cat /etc/default/thinkfan
# Additional startup parameters
#DAEMON_ARGS="-q"
START=yes
DAEMON_ARGS="-q -b 1 -s 3"
Operating System: Kubuntu 21.04
KDE Plasma Version: 5.21.4
KDE Frameworks Version: 5.80.0
Qt Version: 5.15.2
Kernel Version: 5.11.0-17-generic
OS Type: 64-bit
Graphics Platform: X11
Processors: 4 × Intel® Core™ i7-2620M CPU @ 2.70GHz
Memory: 7.7 GiB of RAM
Graphics Processor: Mesa DRI Intel® HD Graphics 3000
Solution 1:
After update to ubuntu 21.04,i got the same problem, then i add this line to /etc/default/thinkfan, my problem is ok.
THINKFAN_ARGS="-c /etc/thinkfan.conf"