I found this question on askUbuntu: https://askubuntu.com/questions/1242205/ubuntu-20-04-hangs-when- changing-brightness-level-with-keyboard . Someone else is also facing the same bug. Does this mean the bug can be Confirmed now?
I also found this page where people who used older version of Ubuntu faced this bug. Seems like this may be a bug with Kernel.org : https://askubuntu.com/questions/466389/ubuntu-14-04lts-hangs-when-i -change-brightness-of-my-display-on-dell-n5010-laptop I haven't tested the methods given in the second link I sent yet, but I'll comment here if one of the solutions work. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1892747 Title: [Dell Vostro 3446] Ubuntu hangs while changing display brightness from keyboard shortcut Status in gnome-shell package in Ubuntu: New Bug description: Whenever I change my display's brightness using keyboard shortcuts (For me F11 & F12), Ubuntu hangs a little, the brightness is changed immediately, but everything (except the mouse) hangs while it is being changed and sometimes for quite some time after. There is no problem doing it through the system. Changing volume using keyboard shortcuts works perfectly. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.8 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME DisplayManager: gdm3 DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2020-08-22 (3 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) NonfreeKernelModules: nvidia Package: gnome-shell 3.36.4-1ubuntu1~20.04.2 PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44 RelatedPackageVersions: mutter-common 3.36.4-0ubuntu0.20.04.2 Tags: focal Uname: Linux 5.4.0-42-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1892747/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
