The below is likely the reason that fn keys do not work, i.e. irq 9 (acpi) are disabled because it is not handled.
[ 9.932829] irq 9: nobody cared (try booting with the "irqpoll" option) [ 9.932832] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-48-generic #52-Ubuntu [ 9.932833] Hardware name: LENOVO 81WE/LNVNB161216, BIOS EMCN13WW 03/06/2020 [ 9.932833] Call Trace: [ 9.932835] <IRQ> [ 9.932840] dump_stack+0x6d/0x9a [ 9.932842] __report_bad_irq+0x3a/0xaf [ 9.932843] note_interrupt.cold+0xb/0x61 [ 9.932844] handle_irq_event_percpu+0x73/0x80 [ 9.932845] handle_irq_event+0x3b/0x5a [ 9.932846] handle_fasteoi_irq+0x9c/0x150 [ 9.932847] do_IRQ+0x55/0xf0 [ 9.932849] common_interrupt+0xf/0xf [ 9.932849] </IRQ> [ 9.932851] RIP: 0010:cpuidle_enter_state+0xc5/0x450 [ 9.932852] Code: ff e8 1f d4 80 ff 80 7d c7 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 65 03 00 00 31 ff e8 52 3d 87 ff fb 66 0f 1f 44 00 00 <45> 85 ed 0f 88 8f 02 00 00 49 63 cd 4c 8b 7d d0 4c 2b 7d c8 48 8d [ 9.932853] RSP: 0018:ffffb86b400e3e38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffde [ 9.932854] RAX: ffff893d12a6ad00 RBX: ffffffffa3169000 RCX: 000000000000001f [ 9.932854] RDX: 0000000000000000 RSI: 000000006b86e1b8 RDI: 0000000000000000 [ 9.932854] RBP: ffffb86b400e3e78 R08: 000000025009bec1 R09: 000000007fffffff [ 9.932855] R10: ffff893d12a69a00 R11: ffff893d12a699e0 R12: ffff893d0f97f400 [ 9.932855] R13: 0000000000000001 R14: 0000000000000001 R15: ffff893d0f97f400 [ 9.932857] ? cpuidle_enter_state+0xa1/0x450 [ 9.932857] cpuidle_enter+0x2e/0x40 [ 9.932859] call_cpuidle+0x23/0x40 [ 9.932859] do_idle+0x1dd/0x270 [ 9.932860] cpu_startup_entry+0x20/0x30 [ 9.932862] start_secondary+0x167/0x1c0 [ 9.932863] secondary_startup_64+0xa4/0xb0 [ 9.932864] handlers: [ 9.932866] [<0000000014286725>] acpi_irq [ 9.932867] Disabling IRQ #9 -- 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/1899258 Title: touchpad not work Status in linux package in Ubuntu: Confirmed Bug description: Laptop model: Lenovo IdeaPad 3 15IIL05-0205 When the symptom first appeared: after install Ubuntu 20.04.1 LTS the touchpad not work at all. the special keys activated by fn of the keyboard do not work either. after cat /proc/bus/input/devices not apear the touchpad ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-48-generic 5.4.0-48.52 ProcVersionSignature: Ubuntu 5.4.0-48.52-generic 5.4.60 Uname: Linux 5.4.0-48-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.9 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: leila 1260 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sat Oct 10 14:33:38 2020 InstallationDate: Installed on 2020-10-10 (0 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 046d:c05b Logitech, Inc. M-U0004 810-001317 [B110 Optical USB Mouse] Bus 001 Device 002: ID 174f:118d Syntek Integrated Camera Bus 001 Device 004: ID 8087:0aaa Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 81WE ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=es_ES.UTF-8 SHELL=/bin/bash ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-48-generic root=UUID=7dcaf7eb-d74c-49c5-94ac-df08929d97f6 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-48-generic N/A linux-backports-modules-5.4.0-48-generic N/A linux-firmware 1.187.3 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/06/2020 dmi.bios.vendor: LENOVO dmi.bios.version: EMCN13WW 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 3 15IIL05 dmi.modalias: dmi:bvnLENOVO:bvrEMCN13WW:bd03/06/2020:svnLENOVO:pn81WE:pvrIdeaPad315IIL05:rvnLENOVO:rnLNVNB161216:rvrNODPK:cvnLENOVO:ct10:cvrIdeaPad315IIL05: dmi.product.family: IdeaPad 3 15IIL05 dmi.product.name: 81WE dmi.product.sku: LENOVO_MT_81WE_BU_idea_FM_IdeaPad 3 15IIL05 dmi.product.version: IdeaPad 3 15IIL05 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1899258/+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
