Public bug reported:
The brightness setting doesn't work. I still have 100%. When I set it
lower with the F3 key, the disply is still at full brightness. GRUB
modifications and other applications such as brightness controller do
not help
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.11.0-26-generic 6.11.0-26.26~24.04.1
ProcVersionSignature: Ubuntu 6.11.0-26.26~24.04.1-generic 6.11.11
Uname: Linux 6.11.0-26-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: fousac 1738 F.... wireplumber
/dev/snd/controlC0: fousac 1738 F.... wireplumber
/dev/snd/seq: fousac 1734 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Jun 26 18:24:30 2025
InstallationDate: Installed on 2025-06-18 (8 days ago)
InstallationMedia: Ubuntu 22.04.5 LTS "Jammy Jellyfish" - Release amd64
(20240911)
MachineType: HP HP ProBook 465 16 inch G11 Notebook PC
ProcEnviron:
LANG=cs_CZ.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.11.0-26-generic
root=UUID=6e6214f4-7ff2-4abe-802a-4c718bc3509f ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-6.11.0-26-generic N/A
linux-backports-modules-6.11.0-26-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.13
SourcePackage: linux-hwe-6.11
UpgradeStatus: Upgraded to noble on 2025-06-19 (7 days ago)
dmi.bios.date: 03/13/2025
dmi.bios.release: 4.2
dmi.bios.vendor: HP
dmi.bios.version: W78 Ver. 01.04.02
dmi.board.name: 8C79
dmi.board.vendor: HP
dmi.board.version: KBC Version 06.29.00
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.ec.firmware.release: 6.41
dmi.modalias:
dmi:bvnHP:bvrW78Ver.01.04.02:bd03/13/2025:br4.2:efr6.41:svnHP:pnHPProBook46516inchG11NotebookPC:pvrSBKPF,SBKPFV2:rvnHP:rn8C79:rvrKBCVersion06.29.00:cvnHP:ct10:cvr:skuA37ZFET#BCM:
dmi.product.family: 103C_5336AN HP ProBook
dmi.product.name: HP ProBook 465 16 inch G11 Notebook PC
dmi.product.sku: A37ZFET#BCM
dmi.product.version: SBKPF,SBKPFV2
dmi.sys.vendor: HP
** Affects: linux-hwe-6.11 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble wayland-session
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https://bugs.launchpad.net/bugs/2115434
Title:
The brightness settings doesn't work.
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