wow. that finally solved my issue. thank you very much alex hung! how do I make this change permanent and also working on my windows os?
-- 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/1910280 Title: can't adjust my screen_brightness Status in linux package in Ubuntu: Confirmed Bug description: Im using my machine since 20.12.20 and use it in dual boot with windows10 alongside. Hotkeys and adjusting brightness via GUI both broken, since formatting the machine on day 1. Before formatting, adjusting brightness was possible in windows10, but not in ubuntu or other linux distro, that I tried out. There is no bar in the top right corner under the bar for adjusting the sound output. Because "The description is too long. If you have lots of text to add, attach a file to the bug instead." the description is added as .txt- file. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-58-generic 5.4.0-58.64 ProcVersionSignature: Ubuntu 5.4.0-58.64-generic 5.4.73 Uname: Linux 5.4.0-58-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: bella 2076 F.... pulseaudio /dev/snd/pcmC0D0p: bella 2076 F...m pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Tue Jan 5 13:58:37 2021 InstallationDate: Installed on 2020-12-25 (11 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) MachineType: LENOVO 20VH001CGE ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-58-generic root=UUID=2850ca84-1b0f-4cdd-ac66-5b9c964159e6 ro quiet splash acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-58-generic N/A linux-backports-modules-5.4.0-58-generic N/A linux-firmware 1.187.6 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/08/2020 dmi.bios.vendor: LENOVO dmi.bios.version: R1FET29W (1.03 ) dmi.board.asset.tag: Not Available dmi.board.name: 20VH001CGE dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrR1FET29W(1.03):bd10/08/2020:svnLENOVO:pn20VH001CGE:pvrThinkPadL13Gen2:rvnLENOVO:rn20VH001CGE:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad L13 Gen 2 dmi.product.name: 20VH001CGE dmi.product.sku: LENOVO_MT_20VH_BU_Think_FM_ThinkPad L13 Gen 2 dmi.product.version: ThinkPad L13 Gen 2 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1910280/+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
