I tried to add the parameter to grub file but without success (you can check my screenshot).
** Attachment added: "Screenshot from 2020-10-10 00-28-39.png" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891100/+attachment/5420178/+files/Screenshot%20from%202020-10-10%2000-28-39.png -- 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/1891100 Title: hp notebook 15-da0001nk sound mute led not working Status in linux package in Ubuntu: Incomplete Bug description: I install Ubuntu 20.04 with kernel 5.4 on my new HP Notebook - 15-da0001nk , the system run flawlessly except the Sound Mute LED on the F6 key. I try many solution after a humble search on the net but without success. The output of pactl list sinks/lscpi is attached. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: djalel 2167 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 20.04 MachineType: HP HP Laptop 15-da0xxx Package: linux (not installed) ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-42-generic root=UUID=a4fd6950-d770-40a6-9863-f35146cfaf67 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44 RelatedPackageVersions: linux-restricted-modules-5.4.0-42-generic N/A linux-backports-modules-5.4.0-42-generic N/A linux-firmware 1.187.2 Tags: focal Uname: Linux 5.4.0-42-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 06/02/2020 dmi.bios.vendor: Insyde dmi.bios.version: F.30 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: 84A6 dmi.board.vendor: HP dmi.board.version: 80.47 dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrF.30:bd06/02/2020:svnHP:pnHPLaptop15-da0xxx:pvrType1ProductConfigId:rvnHP:rn84A6:rvr80.47:cvnHP:ct10:cvrChassisVersion: dmi.product.family: 103C_5335KV HP Notebook dmi.product.name: HP Laptop 15-da0xxx dmi.product.sku: 4BY81EA#BH4 dmi.product.version: Type1ProductConfigId dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891100/+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
