Ubuntu
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Touchpad not recognized in laptop Lenovo Thinkbook 15-ILL (20SM000GPB)

Bug #1885573 reported by Maciej Rozwód on 2020-06-29

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This bug affects 17 people

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Affecting:	linux (Ubuntu)
Filed here by:	Maciej Rozwód
When:	2020-06-29
Confirmed:	2020-06-29
Started work:	2020-07-03

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Bug Description

My laptop's touchpad is not recognized by current linux kernel (5.4.0-39-generic) in Ubuntu 20.04 LTS. I didn't find it in 'cat /proc/bus/input/devices'.

1. Laptop model: Lenovo Thinkbook 15-ILL (20SM000GPB)
2. Touchpad manufacturer: Elan
3. Problem occured for the first time during installation and then it continued after installation was complete.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-39-generic 5.4.0-39.43
ProcVersionSignature: Ubuntu 5.4.0-39.43-generic 5.4.41
Uname: Linux 5.4.0-39-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: mrozwod 1597 F.... pulseaudio
/dev/snd/pcmC0D0p: mrozwod 1597 F...m pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Mon Jun 29 16:06:14 2020
InstallationDate: Installed on 2020-06-29 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: LENOVO 20SM
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-39-generic root=UUID=0923cf05-213a-4a18-8bb1-393e24835373 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-39-generic N/A
linux-backports-modules-5.4.0-39-generic N/A
linux-firmware 1.187
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/11/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: DJCN14WW
dmi.board.name: LVAC/LVAD
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ThinkBook 15-IIL
dmi.modalias: dmi:bvnLENOVO:bvrDJCN14WW:bd12/11/2019:svnLENOVO:pn20SM:pvrLenovoThinkBook15-IIL:rvnLENOVO:rnLVAC/LVAD:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrLenovoThinkBook15-IIL:
dmi.product.family: Thinkbook 15-IIL
dmi.product.name: 20SM
dmi.product.sku: LENOVO_MT_20SM_BU_idea_FM_Thinkbook 15-IIL
dmi.product.version: Lenovo ThinkBook 15-IIL
dmi.sys.vendor: LENOVO

See original description

Tags: Edit Tag help

Maciej Rozwód (mrozwod) wrote on 2020-06-29:

devices dump Edit (4.1 KiB, text/plain)
AlsaInfo.txt Edit (45.6 KiB, text/plain; charset="utf-8")
CRDA.txt Edit (2.8 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (115.6 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (2.4 KiB, text/plain; charset="utf-8")
IwConfig.txt Edit (543 bytes, text/plain; charset="utf-8")
Lspci.txt Edit (12.9 KiB, text/plain; charset="utf-8")
Lspci-vt.txt Edit (1.3 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (505 bytes, text/plain; charset="utf-8")
Lsusb-t.txt Edit (755 bytes, text/plain; charset="utf-8")
Lsusb-v.txt Edit (49.9 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (11.7 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (1.5 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (310 bytes, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (7.5 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (9.3 KiB, text/plain; charset="utf-8")
PulseList.txt Edit (35.7 KiB, text/plain; charset="utf-8")
RfKill.txt Edit (248 bytes, text/plain; charset="utf-8")
UdevDb.txt Edit (212.2 KiB, text/plain; charset="utf-8")
WifiSyslog.txt Edit (179.9 KiB, text/plain; charset="utf-8")

Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote on 2020-06-29: Status changed to Confirmed

This change was made by a bot.

Changed in linux (Ubuntu):
status:	New → Confirmed

atztao (atztao) wrote on 2020-06-30:

The same issue for Dell XPS 13 9360.

Kai-Heng Feng (kaihengfeng) wrote on 2020-07-02:

Maciej, can you please attach acpidump?

Maciej Rozwód (mrozwod) wrote on 2020-07-02:

ACPI tables dump Edit (1.3 MiB, binary/octet-stream)

You-Sheng Yang (vicamo) on 2020-07-03

tags:

added: hwe-touchpad

You-Sheng Yang (vicamo) wrote on 2020-07-03:

extracted DSDT table Edit (1.3 MiB, text/plain)

You-Sheng Yang (vicamo) wrote on 2020-07-03:

[ 0.424084] i8042: PNP: PS/2 Controller [PNP0303:PS2K] at 0x60,0x64 irq 1
[ 0.424084] i8042: PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp
[ 0.427913] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 0.428055] mousedev: PS/2 mouse device common for all mice

Please append following kernel boot parameters, reboot and attach
output of `journalctl -b`:

i8042.nopnp=1 pci=nocrs

For detailed steps, please see https://askubuntu.com/questions/19486
/how-do-i-add-a-kernel-boot-parameter.

Changed in linux (Ubuntu):
status:	Confirmed → Incomplete

Kai-Heng Feng (kaihengfeng) wrote on 2020-07-03:

Please test
https://people.canonical.com/~khfeng/lp1853277/

Maciej Rozwód (mrozwod) wrote on 2020-07-03:

journalctl.txt Edit (1.6 MiB, text/plain)

journalctl -b in the attachment

Kai-Heng Feng (kaihengfeng) wrote on 2020-07-03:

#10

1) Please remove i8042.nopnp=1 pci=nocrs
2) The kernel isn't the one I compiled.

Maciej Rozwód (mrozwod) wrote on 2020-07-03:

#11

I tested the provided unsigned image from #8, nothing changed.

Maciej Rozwód (mrozwod) wrote on 2020-07-03:

#12

journalctl-customkernel.txt Edit (1.6 MiB, text/plain)

Sorry, I followed vicaro's instructions first.

I booted your kernel without the parameters, adding journalctl -b from it with in the attachment. If I need to check out anything else.

Kai-Heng Feng (kaihengfeng) wrote on 2020-07-03:

#13

[ 527.025726] ACPI BIOS Error (bug): AE_AML_PACKAGE_LIMIT, Index (0x0000000FF) is beyond end of object (length 0x10) (20190816/exoparg2-393)
[ 527.025760] No Local Variables are initialized for Method [GINF]
[ 527.025761] Initialized Arguments for Method [GINF]: (2 arguments defined for method invocation)
[ 527.025762] Arg0: 000000006909cbdc <Obj> Integer 00000000000000FF
[ 527.025768] Arg1: 00000000e3e0075d <Obj> Integer 0000000000000000
[ 527.025773] ACPI Error: Aborting method \_SB.GINF due to previous error (AE_AML_PACKAGE_LIMIT) (20190816/psparse-529)
[ 527.025780] ACPI Error: Aborting method \_SB.GADR due to previous error (AE_AML_PACKAGE_LIMIT) (20190816/psparse-529)
[ 527.025784] ACPI Error: Aborting method \_SB.SGOV due to previous error (AE_AML_PACKAGE_LIMIT) (20190816/psparse-529)
[ 527.025788] ACPI Error: Aborting method \_SB.CGWR due to previous error (AE_AML_PACKAGE_LIMIT) (20190816/psparse-529)
[ 527.025793] ACPI Error: Aborting method \_SB.TBFP due to previous error (AE_AML_PACKAGE_LIMIT) (20190816/psparse-529)
[ 527.025797] ACPI Error: Aborting method \_SB.WMTF.WMTF due to previous error (AE_AML_PACKAGE_LIMIT) (20190816/psparse-529)
[ 527.031499] ACPI BIOS Error (bug): AE_AML_PACKAGE_LIMIT, Index (0x0000000FF) is beyond end of object (length 0x10) (20190816/exoparg2-393)
[ 527.031515] No Local Variables are initialized for Method [GINF]
[ 527.031516] Initialized Arguments for Method [GINF]: (2 arguments defined for method invocation)
[ 527.031516] Arg0: 00000000a93046ee <Obj> Integer 00000000000000FF
[ 527.031520] Arg1: 000000000510f0cd <Obj> Integer 0000000000000000
[ 527.031523] ACPI Error: Aborting method \_SB.GINF due to previous error (AE_AML_PACKAGE_LIMIT) (20190816/psparse-529)
[ 527.031526] ACPI Error: Aborting method \_SB.GADR due to previous error (AE_AML_PACKAGE_LIMIT) (20190816/psparse-529)
[ 527.031528] ACPI Error: Aborting method \_SB.SGOV due to previous error (AE_AML_PACKAGE_LIMIT) (20190816/psparse-529)
[ 527.031531] ACPI Error: Aborting method \_SB.CGWR due to previous error (AE_AML_PACKAGE_LIMIT) (20190816/psparse-529)
[ 527.031533] ACPI Error: Aborting method \_SB.TBFP due to previous error (AE_AML_PACKAGE_LIMIT) (20190816/psparse-529)
[ 527.031536] ACPI Error: Aborting method \_SB.WMTF.WMTF due to previous error (AE_AML_PACKAGE_LIMIT) (20190816/psparse-529)

Kai-Heng Feng (kaihengfeng) wrote on 2020-07-03:

#14

I guess something's wrong here so \_SB.PCI0.I2C0._REG didn't get evaluated. The _REG methods initialize some variables to make touchpad work.

Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.8-rc3/

Maciej Rozwód (mrozwod) wrote on 2020-07-03:

#15

journalctl-mainline.txt Edit (413.9 KiB, text/plain)

Unfortunately I think the situation looks the same with mainline kernel. Journalctl -b in attachment.

Kai-Heng Feng (kaihengfeng) wrote on 2020-07-03:

#16

Let's ask upstream ACPI developers to take a look:
https://bugzilla.kernel.org/show_bug.cgi?id=208423

You-Sheng Yang (vicamo) wrote on 2020-07-06:

#17

Bug 1882447 looks similar to this one and claimed fixed with kernel v5.7.1.

Niko (therealhockenberry) wrote on 2020-07-06:

#18

Bug 1885573 (https://bugs.launchpad.net/bugs/1885573) marks this one as duplicate, but installing kernel 5.7.1 or 5.7.7 didn't work (though I couldn't install linux-headers).

Niko (therealhockenberry) wrote on 2020-07-06:

#19

Sorry it is Bug 1873677 (How can I edit what I have just written?)

Maciej Rozwód (mrozwod) wrote on 2020-07-06:

#20

I tried v5.7.1 kernel and it looks the same as with mainline v5.8.0 and my initial 5.4.0-39.

The part described in comment #13 still looks the same in logs.

Niko (therealhockenberry) wrote on 2020-08-09:

#21

I found the device with `ls /sys/bus/acpi/devices`, although it does not appear in /proc/bus/input/devices

I found in Bug-Report #1853277 that Kai-Heng Feng stated "We are currently working with Lenovo and it might take a while." Is that still undergoing?

Niko (therealhockenberry) wrote on 2020-08-09:

#22

Kai-Heng answered: "Lenovo is aware of this issue, but I haven't got the hardware yet."

There is an easy to apply solution in Bug-Report #1861610 that seems to work for some people.

Maciej Rozwód (mrozwod) wrote on 2020-08-10:

#23

I checked /sys/bus/acpi/devices dir and there is a directory called ELAN0634:00 but the modalias file inside is empty for me.

description:

updated

Vladimir (juncer666) wrote on 2020-08-12:

#24

I also have a problem with my trackpad.
I put various BIOS updates and tried to fix this bug according to descriptions from similar reports in your backlog - no success. Can you guide me on a solution? Maybe I missed something. Thank!
Ubuntu 20.04. ThinkBook 14-IIL.

Hoyong Hwang (hwanghy) wrote on 2020-08-16:

#25

Mine isn't Thinkbook though, #7 solved my problem on ideapad s145. Thanks !

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Touchpad not recognized in laptop Lenovo Thinkbook 15-ILL (20SM000GPB)

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