This bug is missing log files that will aid in diagnosing the problem. >From a terminal window please run:
apport-collect 2100491 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that and change the bug status to 'Confirmed'. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-signed-hwe-5.15 in Ubuntu. https://bugs.launchpad.net/bugs/2100491 Title: My Lenovo Y9000P cannot adjust the screen brightness after installing Ubuntu 20.04. Status in linux-signed-hwe-5.15 package in Ubuntu: New Bug description: My Ubuntu 20.04 has a brightness adjustment slider, but it doesn't work. The keyboard shortcuts for adjusting brightness are also ineffective. Additionally, there is only an 'ideapad' folder under the /sys/class/backlight directory. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.15.0-131-generic 5.15.0-131.141~20.04.1 ProcVersionSignature: Ubuntu 5.15.0-131.141~20.04.1-generic 5.15.168 Uname: Linux 5.15.0-131-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Thu Feb 27 21:11:36 2025 InstallationDate: Installed on 2025-02-19 (8 days ago) InstallationMedia: Ubuntu 20.04.6 LTS "Focal Fossa" - Release amd64 (20230316) SourcePackage: linux-signed-hwe-5.15 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.15/+bug/2100491/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
