Kernel couldn't recognize Touchpad and Trackpoint as different devices for Lenovo Thinkpad A275

[Misha T]

So, the problem described in header.
xinput sees only one input device (PS/2 Synaptics TouchPad) instead of two (PS/2 Synaptics TouchPad and IBM TrackPoint).
So I couldn't turn off TouchPad without of turning off Trackpoint, and so on and so on
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ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: misha 1411 F.... pulseaudio
 /dev/snd/controlC0: misha 1411 F.... pulseaudio
CurrentDesktop: MATE
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2019-06-02 (21 days ago)
InstallationMedia: Ubuntu-MATE 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
MachineType: LENOVO 20KD0013US
Package: linux (not installed)
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-51-generic root=UUID=7db192d2-3f73-4d63-9857-72249498145e ro i8042.debug=1 quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 4.15.0-51.55-generic 4.15.18
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-51-generic N/A
 linux-backports-modules-4.15.0-51-generic N/A
 linux-firmware 1.173.6
Tags: bionic
Uname: Linux 4.15.0-51-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 09/19/2017
dmi.bios.vendor: LENOVO
dmi.bios.version: R0NET30W (1.08 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20KD0013US
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrR0NET30W(1.08):bd09/19/2017:svnLENOVO:pn20KD0013US:pvrThinkPadA275:rvnLENOVO:rn20KD0013US:rvrNotDefined:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad A275
dmi.product.name: 20KD0013US
dmi.product.version: ThinkPad A275
dmi.sys.vendor: LENOVO

[Misha T (mishat)]

i8042 & psmouse modules debug messages for 4.15.0-51-generic Kernel

[Misha T (mishat)]

apport information

[Misha T (mishat)]

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[Misha T (mishat)]

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[Misha T (mishat)]

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[Misha T (mishat)]

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[Misha T (mishat)]

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[Misha T (mishat)]

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[Misha T (mishat)]

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[Misha T (mishat)]

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[Misha T (mishat)]

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[Misha T (mishat)]

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[Misha T (mishat)]

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[Misha T (mishat)]

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[Misha T (mishat)]

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[Misha T (mishat)]

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[Misha T (mishat)]

i8042 & psmouse modules debug messages for previous version of kernel (4.15.0-50). Here Kernel recognize Trackpoint and Touchpad as two different devices, but TouchPad doesn't work at all, and buttons of TrackPoint doesn't work properly

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

This change was made by a bot.

[Kai-Heng Feng (kaihengfeng)]

Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.2-rc6/

And attach dmesg without i8042 debug info.

[Kai-Heng Feng (kaihengfeng)]

Ok, please test kernel parameter "psmouse.synaptics_intertouch=1".

[Kai-Heng Feng (kaihengfeng)]

Please boot with this kernel with more debug information:
https://people.canonical.com/~khfeng/lp1833877/

And attach dmesg.

[Po-Hsu Lin (cypressyew)]

Mark as Incomplete as per request in comment #26

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]