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Hello,
I've been trying to bug fix some strange fan behaviour. Sometimes the fan will be on at full blast despite the temperature only being about 30*C. Other times the CPU will heat up to over 90*C and then fan will stay off.
I initially setup thinkfan in order to have finer control over the fan behaviour which works intermittently. After a reset of the computer, thinkfan will work fine, but if the laptop goes to sleep and wakes up the old behaviour is back.
I believe the issue is that for some reason the speed of the fan being reported is not the true speed of the fan. Below are a number of diagnostics that I believe are pertinent. The most important being the fan speed being quoted as 65535 RPM (Integer maximum). The fan itself swaps between 0 and max speed randomly, with the max speed sometimes lasting for minutes, and other times less than a second.
System Information
Thinkfan version: 1.2.1-3
Laptop: ThinkPad X1 Carbon 7th
Arch version: 5.12.9-arch1-1
Useful Diagnostics
>cat /etc/thinkfan.conf
sensors:
- tpacpi: /proc/acpi/ibm/thermal
indices: [0]
fans:
- tpacpi: /prov/acpi/ibm/fan
levels:
- [0, 0, 50]
- [2, 50, 70]
- [4, 70, 80]
- [7, 80. 255]>systemctl status thinkfan.service
● thinkfan.service - simple and lightweight fan control program
Loaded: loaded (/usr/lib/systemd/system/thinkfan.service; enabled; vendor preset: disabled)
Drop-In: /etc/systemd/system/thinkfan.service.d
└─override.conf
Active: active (running) since Wed 2021-06-09 13:36:59 AEST; 24h ago
Process: 114356 ExecStartPre=/sbin/modprobe thinkpad_acpi (code=exited, status=0/SUCCESS)
Process: 114357 ExecStart=/usr/bin/thinkfan $THINKFAN_ARGS (code=exited, status=0/SUCCESS)
Main PID: 114358 (thinkfan)
Tasks: 1 (limit: 18782)
Memory: 528.0K
CPU: 5.623s
CGroup: /system.slice/thinkfan.service
└─114358 /usr/bin/thinkfan -b0
Jun 10 04:13:09 Archbox thinkfan[114358]: Temperatures(bias): 49(0) -> level 0
Jun 10 04:13:14 Archbox thinkfan[114358]: Temperatures(bias): 51(0) -> level 2 #<- Note correct changing of levels at temperature thresholds
Jun 10 04:14:26 Archbox thinkfan[114358]: Temperatures(bias): 49(0) -> level 0
Jun 10 04:14:31 Archbox thinkfan[114358]: Temperatures(bias): 50(0) -> level 2
Jun 10 04:14:51 Archbox thinkfan[114358]: Temperatures(bias): 48(0) -> level 0
Jun 10 04:16:16 Archbox thinkfan[114358]: Temperatures(bias): 50(0) -> level 2
Jun 10 04:16:21 Archbox thinkfan[114358]: Temperatures(bias): 48(0) -> level 0
Jun 10 05:12:33 Archbox thinkfan[114358]: Going to sleep: Will allow sensor read errors for the next 2 lo>
Jun 10 13:35:20 Archbox thinkfan[114358]: Received SIGUSR2: Re-initializing fan control.
Jun 10 13:35:20 Archbox thinkfan[114358]: Temperatures(bias): 31(0) -> level 0 #<- The fan is running right now despite this.> cat /proc/acpi/ibm/thermal
temperatures: 25 -128 0 0 0 0 0 -128 #<- temperature seems to be correct (thinkfan works off the first item)> cat /proc/acpi/ibm/fan
status: disabled
speed: 65535 #<- This seems to be the issue, the speed is quoted as the maximum integer so I believe is wrong. Additionally the level is set to 0 so the speed should be 0 also.
level: 0
commands: level <level> (<level> is 0-7, auto, disengaged, full-speed)
commands: enable, disable
commands: watchdog <timeout> (<timeout> is 0 (off), 1-120 (seconds))> sensors
coretemp-isa-0000
Adapter: ISA adapter
Package id 0: +28.0°C (high = +100.0°C, crit = +100.0°C)
Core 0: +27.0°C (high = +100.0°C, crit = +100.0°C)
Core 1: +25.0°C (high = +100.0°C, crit = +100.0°C)
Core 2: +28.0°C (high = +100.0°C, crit = +100.0°C)
Core 3: +25.0°C (high = +100.0°C, crit = +100.0°C)
ucsi_source_psy_USBC000:001-isa-0000
Adapter: ISA adapter
in0: 0.00 V (min = +0.00 V, max = +0.00 V)
curr1: 0.00 A (max = +0.00 A)
thinkpad-isa-0000
Adapter: ISA adapter
fan1: 65535 RPM
temp1: +25.0°C
temp2: N/A
temp3: +0.0°C
temp4: +0.0°C
temp5: +0.0°C
temp6: +0.0°C
temp7: +0.0°C
temp8: N/A
nvme-pci-0300
Adapter: PCI adapter
Composite: +20.9°C (low = -273.1°C, high = +83.8°C)
(crit = +84.8°C)
Sensor 1: +20.9°C (low = -273.1°C, high = +65261.8°C)
Sensor 2: +17.9°C (low = -273.1°C, high = +65261.8°C)
ucsi_source_psy_USBC000:002-isa-0000
Adapter: ISA adapter
in0: 0.00 V (min = +0.00 V, max = +0.00 V)
curr1: 0.00 A (max = +0.00 A)
iwlwifi_1-virtual-0
Adapter: Virtual device
temp1: +21.0°C
pch_cannonlake-virtual-0
Adapter: Virtual device
temp1: +25.0°C
BAT0-acpi-0
Adapter: ACPI interface
in0: 14.85 V
acpitz-acpi-0
Adapter: ACPI interface
temp1: +25.0°C (crit = +128.0°C)> journalctl | tail -n 100 | grep fan # Ran after sleep
Jun 10 14:09:13 Archbox systemd[1]: Starting Reload thinkfan after waking up from suspend...
Jun 10 14:09:13 Archbox thinkfan[114358]: Received SIGUSR2: Re-initializing fan control.
Jun 10 14:09:13 Archbox systemd[1]: thinkfan-wakeup.service: Deactivated successfully.
Jun 10 14:09:13 Archbox systemd[1]: Finished Reload thinkfan after waking up from suspend.
Jun 10 14:09:13 Archbox audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=thin fan-wakeup comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Jun 10 14:09:13 Archbox audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=thinkfan-wakeup comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Jun 10 14:09:13 Archbox kernel: audit: type=1130 audit(1623298153.584:251): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=thinkfan-wakeup comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Jun 10 14:09:13 Archbox kernel: audit: type=1131 audit(1623298153.584:252): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=thinkfan-wakeup comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Jun 10 14:09:13 Archbox thinkfan[114358]: Temperatures(bias): 27(0) -> level 0I'm happy to post anything else which would be useful, but I'm quite stuck on this!
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I'm having the same issue on my Thinkpad T480s!
Kernel: 5.13.4-arch2-1
Thinkfan version: 1.2.2-1
Sensors:
coretemp-isa-0000
Adapter: ISA adapter
Package id 0: +58.0°C (high = +100.0°C, crit = +100.0°C)
Core 0: +56.0°C (high = +100.0°C, crit = +100.0°C)
Core 1: +57.0°C (high = +100.0°C, crit = +100.0°C)
Core 2: +58.0°C (high = +100.0°C, crit = +100.0°C)
Core 3: +56.0°C (high = +100.0°C, crit = +100.0°C)
ucsi_source_psy_USBC000:001-isa-0000
Adapter: ISA adapter
in0: 5.00 V (min = +5.00 V, max = +20.00 V)
curr1: 3.00 A (max = +3.25 A)
pch_skylake-virtual-0
Adapter: Virtual device
temp1: +54.0°C
BAT0-acpi-0
Adapter: ACPI interface
in0: 11.97 V
ucsi_source_psy_USBC000:002-isa-0000
Adapter: ISA adapter
in0: 0.00 V (min = +0.00 V, max = +0.00 V)
curr1: 0.00 A (max = +0.00 A)
iwlwifi_1-virtual-0
Adapter: Virtual device
temp1: +53.0°C
thinkpad-isa-0000
Adapter: ISA adapter
fan1: 65535 RPM
CPU: +57.0°C
GPU: +54.0°C
temp3: +0.0°C
temp4: +0.0°C
temp5: +0.0°C
temp6: +0.0°C
temp7: +0.0°C
temp8: +0.0°C
nvme-pci-3e00
Adapter: PCI adapter
Composite: +39.9°C (low = -273.1°C, high = +80.8°C)
(crit = +81.8°C)
Sensor 1: +39.9°C (low = -273.1°C, high = +65261.8°C)
Sensor 2: +43.9°C (low = -273.1°C, high = +65261.8°C)
acpitz-acpi-0
Adapter: ACPI interface
temp1: +57.0°C (crit = +128.0°C)I've had a few overheats on my laptop in the last few weeks, and I suspect this issue may be related to it. If anyone has any idea what could be causing this, I would much appreciate it.
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