Thanks @kaihenfeng! I am new to compiling my own kernel and hit an error last night:
BTF: .tmp_vmlinux.btf: pahole (pahole) is not available Failed to generate BTF for vmlinux Try to disable CONFIG_DEBUG_INFO_BTF make: *** [Makefile:1139: vmlinux] Error 1 Any suggestions would be appreciated otherwise I will poke around in the menuconfig tonight -- 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/1884981 Title: The touchpad soesn't work at all Status in linux package in Ubuntu: Incomplete Bug description: I had Windows 10 on the device and the touch pad was working perfectly, but when I set up Ubuntu 20.04 with Windows, in both OCs the touch pad stopped working at all. It doesn't appear /proc/bus/input/devices file. $ lsb_release -rd Description: Ubuntu 20.04 LTS Release: 20.04 ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-37-generic 5.4.0-37.41 ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41 Uname: Linux 5.4.0-37-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: danila 1249 F.... pulseaudio /dev/snd/controlC0: danila 1249 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed Jun 24 18:00:28 2020 InstallationDate: Installed on 2020-06-24 (0 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: LENOVO 81YM ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-37-generic root=UUID=c7036847-2fbc-429d-b113-30e6cc776647 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-37-generic N/A linux-backports-modules-5.4.0-37-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/25/2020 dmi.bios.vendor: LENOVO dmi.bios.version: DTCN18WW(V1.04) dmi.board.asset.tag: NO Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: No DPK dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: IdeaPad 5 14ARE05 dmi.modalias: dmi:bvnLENOVO:bvrDTCN18WW(V1.04):bd03/25/2020:svnLENOVO:pn81YM:pvrIdeaPad514ARE05:rvnLENOVO:rnLNVNB161216:rvrNoDPK:cvnLENOVO:ct10:cvrIdeaPad514ARE05: dmi.product.family: IdeaPad 5 14ARE05 dmi.product.name: 81YM dmi.product.sku: LENOVO_MT_81YM_BU_idea_FM_IdeaPad 5 14ARE05 dmi.product.version: IdeaPad 5 14ARE05 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1884981/+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
