[Lenovo IdeaPad 3 14IIL05] No fan detected

[Eduardo Donoso Escobar]

No fan detected

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-48.52-generic 5.4.60
Uname: Linux 5.4.0-48-generic x86_64
.tmp.unity_support_test.0:

ApportVersion: 2.20.11-0ubuntu27.9
Architecture: amd64
BootLog: Error: [Errno 13] Permiso denegado: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sun Oct 11 23:33:39 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation Device [8086:8a56] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:3fb5]
InstallationDate: Installed on 2020-09-24 (18 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 002: ID 13d3:5a08 IMC Networks Integrated Camera
 Bus 001 Device 003: ID 8087:0aaa Intel Corp.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 81WD
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-48-generic root=UUID=98af080a-ee1a-4302-b335-e6462548d523 ro i842.nopnp=1 pci=nocrs quiet splash vt.handoff=1
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/06/2020
dmi.bios.vendor: LENOVO
dmi.bios.version: EMCN13WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: IdeaPad 3 14IIL05
dmi.modalias: dmi:bvnLENOVO:bvrEMCN13WW:bd03/06/2020:svnLENOVO:pn81WD:pvrIdeaPad314IIL05:rvnLENOVO:rnLNVNB161216:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrIdeaPad314IIL05:
dmi.product.family: IdeaPad 3 14IIL05
dmi.product.name: 81WD
dmi.product.sku: LENOVO_MT_81WD_BU_idea_FM_IdeaPad 3 14IIL05
dmi.product.version: IdeaPad 3 14IIL05
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.14.1+20.04.20200211-0ubuntu1
version.libdrm2: libdrm2 2.4.101-2
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

[Daniel van Vugt (vanvugt)]

Please explain in more detail: No fan detected by what?

What were you expecting and what are you looking at?

[Eduardo Donoso Escobar (esquizofonico)]

When I turn on my computer I can hear the fan working, but after the operating system loads I no longer hear it.

$ sensors
coretemp-isa-0000
Adapter: ISA adapter
Package id 0: +35.0°C (high = +100.0°C, crit = +100.0°C)
Core 0: +35.0°C (high = +100.0°C, crit = +100.0°C)
Core 1: +30.0°C (high = +100.0°C, crit = +100.0°C)

iwlwifi_1-virtual-0
Adapter: Virtual device
temp1: +23.0°C

BAT0-acpi-0
Adapter: ACPI interface
in0: 12.49 V

[Daniel van Vugt (vanvugt)]

That sounds correct. If the system is working correctly it will cool down and then turn the fan off/down. So you shouldn't hear it, certainly not at 35 degrees.

[Eduardo Donoso Escobar (esquizofonico)]

At what temperature should the fan be turned on? I tested with s-tui in stress mode and reached 52 degrees without noticing that the fan turned on.

[Daniel van Vugt (vanvugt)]

Not sure but maybe 60-80 degrees... I personally would only be concerned about the fan being off if the temperature was in that range.

If an operating system doesn't support fan control then the fan will always be on maximum. So it being off suggests it is supported.