** Information type changed from Public to Public Security -- 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/1933373
Title: Brightness hotkeys(Fn+F5 for decrease and Fn+F6 for Increase) are not working on Ubuntu 20.04. Hardware Lenovo Ideapad-5-15ITL05. It didn't work on Ubuntu 21.04 either . But I can change brightness from brightness slider. Status in linux package in Ubuntu: Confirmed Bug description: I used the command "watch -n1 cat /proc/interrupts". But when i pressed the brightness hot keys id didn't increased the interruptions. I also used the "acpi_listen" at that time it didn't feedback any output when i pressed the brightness hotkeys. Again I used "sudo showkey -s" it also didn't feedback any output. ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: linux-image-5.11.0-22-generic 5.11.0-22.23 ProcVersionSignature: Ubuntu 5.11.0-22.23-generic 5.11.21 Uname: Linux 5.11.0-22-generic x86_64 ApportVersion: 2.20.11-0ubuntu65.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: akash 1329 F.... pulseaudio CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Wed Jun 23 23:41:15 2021 InstallationDate: Installed on 2021-06-21 (2 days ago) InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420) MachineType: LENOVO 82FG ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-22-generic root=UUID=4d6dc3f0-ff06-49a5-b093-ae70cd670931 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.11.0-22-generic N/A linux-backports-modules-5.11.0-22-generic N/A linux-firmware 1.197.1 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/14/2021 dmi.bios.release: 1.24 dmi.bios.vendor: LENOVO dmi.bios.version: FHCN24WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0Q55724 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: IdeaPad 5 15ITL05 dmi.ec.firmware.release: 1.24 dmi.modalias: dmi:bvnLENOVO:bvrFHCN24WW:bd01/14/2021:br1.24:efr1.24:svnLENOVO:pn82FG:pvrIdeaPad515ITL05:rvnLENOVO:rnLNVNB161216:rvrSDK0Q55724WIN:cvnLENOVO:ct10:cvrIdeaPad515ITL05: dmi.product.family: IdeaPad 5 15ITL05 dmi.product.name: 82FG dmi.product.sku: LENOVO_MT_82FG_BU_idea_FM_IdeaPad 5 15ITL05 dmi.product.version: IdeaPad 5 15ITL05 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1933373/+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