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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1899258 Title: touchpad not work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1899258/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
