Ubuntu
linux package

ELAN Touchpad not working on Lenovo Thinkbook with Ubuntu 18.04 and 19.10

Bug #1860910 reported by Nanditha Rao on 2020-01-26

This bug affects 2 people

Affects		Status	Importance	Assigned to	Milestone
	linux (Ubuntu)	Confirmed	Undecided	Unassigned

Bug Description

I bought a Lenovo Thinkbook (Intel i5 10th generation) Model- 20RV00BNIH just last week. I bought a DOS machine and put ubuntu 18.04 on it, the touchpad hasnt been working ever since.
I checked with Win 10, and the touchpad works, so it is not a hardware issue.
Then I upgraded to ubuntu 19.10.
Kernel is 5.3.0-26-generic #28-Ubuntu SMP

Lots of posts on ubuntuforums indicate that 18.10 onwards should fix this issue. They also claim that Kernel 4.18 onwards should fix this issue, but looks like they dont, at least for me.

I tried the following. Did not help.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1825996
edit /etc/modprobe.d/blacklist.conf
add "blacklist i2c_i801" in the blacklist.conf
sudo update-initramfs -u
reboot

When I do a sudo acpidump | grep -C3 ELAN, I get the following

33230: 0F 00 03 04 49 4E 54 31 70 0A 20 49 44 41 44 A4 ....INT1p. IDAD.
33240: 84 53 42 46 53 53 42 46 49 00 5B 82 4D 0D 54 50 .SBFSSBFI.[.M.TP
33250: 44 32 08 5F 41 44 52 00 08 49 44 41 44 00 08 48 D2._ADR..IDAD..H
33260: 49 44 32 00 08 5F 48 49 44 0D 45 4C 41 4E 30 36 ID2.._HID.ELAN06
33270: 32 46 00 08 5F 43 49 44 0D 50 4E 50 30 43 35 30 2F.._CID.PNP0C50
33280: 00 08 5F 55 49 44 01 14 46 04 5F 44 53 4D 04 A0 .._UID..F._DSM..
33290: 37 93 68 11 13 0A 10 F7 F6 DF 3C 67 42 55 45 AD 7.h.......<gBUE

dmesg | grep -i elan --> yields nothing.

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: linux-image-5.3.0-26-generic 5.3.0-26.28
ProcVersionSignature: Ubuntu 5.3.0-26.28-generic 5.3.13
Uname: Linux 5.3.0-26-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: nanditha 1320 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Sun Jan 26 17:48:17 2020
InstallationDate: Installed on 2020-01-25 (0 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
MachineType: LENOVO 20RV
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-26-generic root=UUID=1bd35570-763f-4f7e-ae06-6b141cfb7a44 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.3.0-26-generic N/A
linux-backports-modules-5.3.0-26-generic N/A
linux-firmware 1.183.3
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/23/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: CJCN22WW
dmi.board.name: LVA/LVAB
dmi.board.vendor: LENOVO
dmi.board.version: NO DPK
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.modalias: dmi:bvnLENOVO:bvrCJCN22WW:bd10/23/2019:svnLENOVO:pn20RV:pvrLenovoThinkBook14-IML:rvnLENOVO:rnLVA/LVAB:rvrNODPK:cvnLENOVO:ct10:cvr:
dmi.product.family: Lenovo ThinkBook 14-IML
dmi.product.name: 20RV
dmi.product.sku: LENOVO_MT_20RV_BU_idea_FM_Lenovo ThinkBook 14-IML
dmi.product.version: Lenovo ThinkBook 14-IML
dmi.sys.vendor: LENOVO

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Revision history for this message

Nanditha Rao (nanditha.ec) wrote on 2020-01-26:

attachments.zip Edit (5.3 KiB, application/zip)
AlsaInfo.txt Edit (42.0 KiB, text/plain; charset="utf-8")
CRDA.txt Edit (923 bytes, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (95.8 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (2.6 KiB, text/plain; charset="utf-8")
IwConfig.txt Edit (504 bytes, text/plain; charset="utf-8")
Lspci.txt Edit (12.3 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (495 bytes, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (10.2 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (1.3 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (109 bytes, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (5.1 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (8.0 KiB, text/plain; charset="utf-8")
PulseList.txt Edit (24.0 KiB, text/plain; charset="utf-8")
RfKill.txt Edit (248 bytes, text/plain; charset="utf-8")
UdevDb.txt Edit (210.4 KiB, text/plain; charset="utf-8")
WifiSyslog.txt Edit (141.2 KiB, text/plain; charset="utf-8")

Revision history for this message

Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote on 2020-01-26: Status changed to Confirmed

This change was made by a bot.

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

Revision history for this message

Nanditha Rao (nanditha.ec) wrote on 2020-02-10:

Any response from this, from other than a bot?
My new Laptop Thinkbook i5 10th gen laptop's touchpad is not working. Lenovo said that they do not support ubuntu, and cannot help here. They cannot replace it with an older 8th gen laptop (on which the touchpad driver is available with ubuntu).
Quick fix pls? This is urgent.

Revision history for this message

AaronMa (mapengyu) wrote on 2020-02-10:

This issue should be the duplicated as:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853277

If you don't want to change ACPI, please wait for LENOVO's new BIOS.