apport information
** Attachment added: "acpidump.txt"
https://bugs.launchpad.net/bugs/1910562/+attachment/5491552/+files/acpidump.txt
** Changed in: linux-signed-hwe-5.8 (Ubuntu)
Status: Invalid => Confirmed
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https://bugs.launchpad.net/bugs/1910562
Title:
Fans switching on and off every 10 seconds after update to kernel
5.8.0-34
Status in linux package in Ubuntu:
Incomplete
Status in linux-signed-hwe-5.8 package in Ubuntu:
Confirmed
Status in lm-sensors package in Ubuntu:
New
Status in xserver-xorg-video-amdgpu package in Ubuntu:
Invalid
Bug description:
After updating via apt dist-upgrade from kernel 5.4.0-59 to kernel
5.8.0-34 the fan on my machine started switching on (for an instant)
and off every 10 seconds even when idle with CPU at 48/50°C.
Switching back to previous kernel solves temporary the problem, i.e.
fans are always off with light desktop work.
The new behavior is really annoying and I guess not healthy for the
fans.
I'm on latest Dell bios, with every other package updated.
Di something in the thermal policies change between those two kernels?
Is it possible to go back to previous behavior ?
Thanks in advance for help
Machine: Dell Precison 7540, intel i7-9750
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.8.0-34-generic 5.8.0-34.37~20.04.2
ProcVersionSignature: Ubuntu 5.8.0-34.37~20.04.2-generic 5.8.18
Uname: Linux 5.8.0-34-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.14
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Thu Jan 7 17:14:54 2021
InstallationDate: Installed on 2020-05-06 (246 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
SourcePackage: linux-signed-hwe-5.8
UpgradeStatus: No upgrade log present (probably fresh install)
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ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: gabriele 2370 F.... pulseaudio
/dev/snd/controlC1: gabriele 2370 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2020-05-06 (352 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: Dell Inc. Precision 7540
Package: lm-sensors 1:3.6.0-2ubuntu1
PackageArchitecture: amd64
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-50-generic
root=UUID=c39f518b-f5c9-47c5-8e7f-42d970d2dedb ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.8.0-50.56~20.04.1-generic 5.8.18
RelatedPackageVersions:
linux-restricted-modules-5.8.0-50-generic N/A
linux-backports-modules-5.8.0-50-generic N/A
linux-firmware 1.187.11
Tags: focal
Uname: Linux 5.8.0-50-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dialout dip docker lpadmin lxd plugdev sambashare
sudo vboxusers wireshark
_MarkForUpload: True
dmi.bios.date: 01/08/2021
dmi.bios.release: 1.11
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.11.2
dmi.board.name: 0XMC3F
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.11.2:bd01/08/2021:br1.11:svnDellInc.:pnPrecision7540:pvr:rvnDellInc.:rn0XMC3F:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: Precision
dmi.product.name: Precision 7540
dmi.product.sku: 0926
dmi.sys.vendor: Dell Inc.
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