Please try LTS enablement stack: https://wiki.ubuntu.com/Kernel/LTSEnablementStack
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1851652 Title: Unable to control display brightness Status in linux package in Ubuntu: Confirmed Bug description: Hi, I had hard rebooted my laptop after I found out that Ubuntu 18.04 was not responding to login credentials. But this reboot was not successful for some reason and I saw a few error messages. So I rebooted in recovery mode, and finally after recovery was done, I selected continue to normal boot. Since then, I'm not able to control the brightness of my screen. Please let me know what additional information or log files you would need to figure out the cause, and solve this problem for me. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-66-generic 4.15.0-66.75 ProcVersionSignature: Ubuntu 4.15.0-66.75-generic 4.15.18 Uname: Linux 4.15.0-66-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: bane 5071 F.... pulseaudio /dev/snd/controlC0: bane 5071 F.... pulseaudio CRDA: global country IN: DFS-UNSET (2402 - 2482 @ 40), (N/A, 20), (N/A) (5150 - 5350 @ 160), (N/A, 23), (N/A) (5725 - 5875 @ 80), (N/A, 23), (N/A) CurrentDesktop: ubuntu:GNOME Date: Thu Nov 7 18:31:57 2019 HibernationDevice: RESUME=UUID=2db48228-3d47-4e07-a5a9-261e53c366b4 InstallationDate: Installed on 2019-01-24 (286 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: Dell Inc. G3 3579 ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-66-generic root=UUID=777c1fb9-e93b-42ef-9910-cee1f24a68d6 ro recovery nomodeset RelatedPackageVersions: linux-restricted-modules-4.15.0-66-generic N/A linux-backports-modules-4.15.0-66-generic N/A linux-firmware 1.173.9 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/18/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.2.1 dmi.board.name: 03TF0Y dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.2.1:bd07/18/2018:svnDellInc.:pnG33579:pvr:rvnDellInc.:rn03TF0Y:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: GSeries dmi.product.name: G3 3579 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1851652/+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
