Public bug reported:
After upgrading to kernel 6.17.0-19-generic, both fans run at
maximum speed (~4800 RPM) regardless of CPU temperature (~40°C at idle).
The issue starts immediately on boot and does not resolve itself.
Reverting to kernel 6.17.0-14-generic fixes the issue completely.
Steps to reproduce:
1. Boot with kernel 6.17.0-19-generic
2. Fans immediately run at maximum speed on boot
3. Check temperatures: CPU ~40°C (normal idle temps)
4. Check fan speed: ~4800 RPM (maximum)
Expected behavior:
Fans should run at low speed or be silent at idle temperatures (~40°C).
Actual behavior:
Fans run at maximum speed (~4800 RPM) regardless of temperature.
Workaround:
Booting with kernel 6.17.0-14-generic resolves the issue completely.
Hardware:
- Model: Dell Inc. Dell G15 5520
- CPU: 12th Gen Intel Core i7-12700H
- GPU: NVIDIA (nvidia-driver-580-open) + Intel Iris Xe
- RAM: 16GB
- OS: Ubuntu 24.04.4 LTS
- Kernel working: 6.17.0-14-generic
- Kernel broken: 6.17.0-19-generic
Additional notes:
The alienware_wmi module is loaded on this system (Dell G15 shares
platform with Alienware). This may be related to the fan control
changes introduced in alienware-wmi-wmax in recent kernel commits.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.17.0-19-generic 6.17.0-19.19~24.04.2
ProcVersionSignature: Ubuntu 6.17.0-19.19~24.04.2-generic 6.17.13
Uname: Linux 6.17.0-19-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: nando 3267 F.... pipewire
nando 3273 F.... wireplumber
/dev/snd/controlC0: nando 3273 F.... wireplumber
/dev/snd/seq: nando 3267 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sun Mar 15 20:40:01 2026
InstallationDate: Installed on 2025-11-14 (122 days ago)
InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64
(20250805.1)
MachineType: Dell Inc. Dell G15 5520
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.17.0-19-generic
root=UUID=a67fec10-b7b4-4ce3-83ca-5186f482e5a2 ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-6.17.0-19-generic N/A
linux-backports-modules-6.17.0-19-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.25
SourcePackage: linux-hwe-6.17
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/23/2025
dmi.bios.release: 1.39
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.39.0
dmi.board.name: 05HPK2
dmi.board.vendor: Dell Inc.
dmi.board.version: A05
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.ec.firmware.release: 1.25
dmi.modalias:
dmi:bvnDellInc.:bvr1.39.0:bd12/23/2025:br1.39:efr1.25:svnDellInc.:pnDellG155520:pvr:rvnDellInc.:rn05HPK2:rvrA05:cvnDellInc.:ct10:cvr:sku0B56:
dmi.product.family: GSeries
dmi.product.name: Dell G15 5520
dmi.product.sku: 0B56
dmi.sys.vendor: Dell Inc.
** Affects: linux-hwe-6.17 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble wayland-session
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https://bugs.launchpad.net/bugs/2144508
Title:
Dell G15 5520: Fan stuck at maximum speed (~4800 RPM) after upgrade to
kernel 6.17.0-19-generic
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