touchpad not work

[Leila Cababie]

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

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Hui Wang (hui.wang)]

Probably this bug is a duplicate one to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1883905

Could you please run 'sudo acpidump > acpidump.dat' and upload the acpidump.dat?

[Hui Wang (hui.wang)]

And this one: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1893117

Looks like all i2c controllers fail, then the i2c client driver (touchpad) is not loaded.

[ 0.495442] pci 0000:00:15.0: BAR 0: no space for [mem size 0x00001000 64bit]
[ 0.495444] pci 0000:00:15.0: BAR 0: failed to assign [mem size 0x00001000 64bit]
[ 0.495447] pci 0000:00:15.1: BAR 0: no space for [mem size 0x00001000 64bit]
[ 0.495449] pci 0000:00:15.1: BAR 0: failed to assign [mem size 0x00001000 64bit]

[Leila Cababie (leilacaba)]

This is the acpidump.dat

Thanks for the help!

[Leila Cababie (leilacaba)]

How can i solve the problem of then the i2c client driver is not loaded?

[Hui Wang (hui.wang)]

One more similar bug: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1899357

[Hui Wang (hui.wang)]

Please try to add "pci=realloc=on" in the bootargs and boot the kernel, then upload the dmesg.

[Hui Wang (hui.wang)]

And please also try "pci=nocrs" in the bootargs and upload the dmesg.

thx.

[Salah (salah67)]

Hello' i am affected by this bug too, can you tell me how to add that in the bootargs ?

Sorry i am a newbie

[Hui Wang (hui.wang)]

interrupt the boot from grub, press e to edit the grub menu, find the line of "linux /boot/xxx", add pci=... then press ctrl+x or F10 to boot.

Or edit /etc/default/grub, add pci=... before quiet splash, save the file and run sudo update-grub;reboot

[Salah (salah67)]

I was just writing you a message to tell you the problem is solved.

It worked with the second option : "pci=nocrs"

The touchpad is now perfectly working.

Thank you very much.

[Leila Cababie (leilacaba)]

I managed to fix the problem by changing the grub:

GRUB_CMDLINE_LINUX_DEFAULT = 'i80242.nopnp=1 pci=nocrs quiet splash'

thanks of all!!

[Salah (salah67)]

Hey Leila does the special key managed by fn are working for you now ?
For me, its not

[Leila Cababie (leilacaba)]

No, it isn't. I don't know how to fix this.

[Alex Hung (alexhung)]

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

[Alex Hung (alexhung)]

The number of IRQ 9 (acpi) seems to be unreasonably high, i.e. 100000 in ProcInterrupts.txt

I tried on my laptop (command: "uptime ; cat /proc/interrupts | grep acpi"), and it is 15859 after 13 mins (~8000 when uptime = 0 min). If you see 100000 right after booting, the hardware / firmware may be mis-behaving.

[Salah (salah67)]

All my Fn buttons are working exept the 2 buttons used for luminosity - and + (F11 and F12)