Public bug reported: Changed the grub to acpi_backlight=vendor was not working. No file showed under ls /sys/class/backlight
Laptop Dell inspiron-3593 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-5.0.0-29-generic 5.0.0-29.31~18.04.1 ProcVersionSignature: Ubuntu 5.0.0-29.31~18.04.1-generic 5.0.21 Uname: Linux 5.0.0-29-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Fri Oct 4 00:21:51 2019 InstallationDate: Installed on 2019-10-03 (1 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) SourcePackage: linux-signed-hwe UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: linux-signed-hwe (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1846676 Title: screen brightness cannot be adjusted To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1846676/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs