Public bug reported:
updated kernel version from Linux 7.0.0-14-generic to Linux
7.0.0-28-generic and now to Linux 7.0.0-30-generic. In both of the last
two updates screen brightness is not changing. While it was working
correctly in Linux 7.0.0-14-generic.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: ubuntu-release-upgrader-core 1:26.04.22
ProcVersionSignature: Ubuntu 7.0.0-30.30-generic 7.0.12
Uname: Linux 7.0.0-30-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: pass
CrashDB: ubuntu
CrashReports:
644:0:108:0:2026-08-23 10:48:10.047910019 +0530:2026-08-23 10:02:32.199590898
+0530:/var/crash/kdump_lock
640:0:108:140659:2026-08-15 16:43:24.787191152 +0530:2026-08-15
16:43:25.787191152 +0530:/var/crash/dracut.0.crash
644:0:108:279:2026-08-23 10:48:19.148405867 +0530:2026-06-09
03:56:05.249296131 +0530:/var/crash/kexec_cmd
CurrentDesktop: ubuntu:GNOME
Date: Sun Aug 23 11:04:02 2026
InstallationDate: Installed on 2026-06-08 (75 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
PackageArchitecture: all
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
XDG_RUNTIME_DIR=<set>
SourcePackage: ubuntu-release-upgrader
Symptom: release-upgrade
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug dist-upgrade resolute wayland-session
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https://bugs.launchpad.net/bugs/2164833
Title:
Brightness not changing
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