Public bug reported: When requiring to configure a display brightness, if the current, in use, display does not have/display a brightness setting, the setting of brightness for the target display for brightness, cannot be set. To accomplish the target display brightness setting one must make it the current display. This can be problematic for users with various laptop docking combinations (or display default when using a laptop when NOT in the dock.
This may be considered a feature choice, but others have also reported it as a problem with using Ubuntu 24 LTS. (E.G. https://discourse.ubuntu.com/t/brightness-slider-is-missing-for-top- bar/61290) The brightness setting for a display has been groomed under "Power" settings. While it does affect power consumption, it is definitely NOT a power setting, it is a display setting. I.E. Consequently its appearance gets misaligned with the current display in use. For example, when trying to brighten the open screen of a laptop that is not the primary screen, it is necessary to disconnect the primary screen. ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: gnome-shell 46.0-0ubuntu6~24.04.12 ProcVersionSignature: Ubuntu 6.14.0-37.37~24.04.1-generic 6.14.11 Uname: Linux 6.14.0-37-generic x86_64 ApportVersion: 2.28.1-0ubuntu3.8 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Sat Jan 3 13:53:23 2026 DisplayManager: gdm3 InstallationDate: Installed on 2025-12-12 (23 days ago) InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64 (20250805.1) ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> RelatedPackageVersions: mutter-common 46.2-1ubuntu0.24.04.13 SourcePackage: gnome-shell UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: gnome-shell (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug gnome noble -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2137402 Title: Top Bar: Brighness setting can disappear and similar issues To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2137402/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
