Touchpad not working at all ubuntu beaver

[t.felder]

Hello, I have seen different report of user regarding the right click not working when pressing on the bottom of the touchscreen.

I however have a completely different problem.

The touchpad is not working at all.
I cannot scroll. (no matter the configuration, the number of fingers or the place of my fingers)
I cannot do a right-click (no matter the configuration in tweeks)
And the pointer randomly jump somewhere in the screen when I try pressing with two fingers.

I previously had ubuntu 14.04 LTS which was perfectly working. After the upgrade to 18.04 LTS this bug directly affected me. I really cannot use my computer at all without right click.

Thanks for the fixing of this bug.

Sincerely,

Thomas

Infos about my system:
Ubuntu 4.15.0-36.39-generic 4.15.18
 lspci-vnvn.log in the attachment file

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-36-generic 4.15.0-36.39
ProcVersionSignature: Ubuntu 4.15.0-36.39-generic 4.15.18
Uname: Linux 4.15.0-36-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: thomas 1236 F.... pulseaudio
 /dev/snd/controlC0: thomas 1236 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Thu Nov 1 11:00:43 2018
InstallationDate: Installed on 2018-10-07 (24 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
MachineType: LENOVO 20A7003TMZ
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-36-generic root=UUID=f5844062-f9f6-42ad-bc0f-434219e69b89 ro persistent quiet splash vt.handoff=1
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-36-generic N/A
 linux-backports-modules-4.15.0-36-generic N/A
 linux-firmware 1.173.1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/30/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: GRET41WW (1.18 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20A7003TMZ
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 Pro
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrGRET41WW(1.18):bd10/30/2014:svnLENOVO:pn20A7003TMZ:pvrThinkPadX1Carbon2nd:rvnLENOVO:rn20A7003TMZ:rvrSDK0E50510Pro:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.family: ThinkPad X1 Carbon 2nd
dmi.product.name: 20A7003TMZ
dmi.product.version: ThinkPad X1 Carbon 2nd
dmi.sys.vendor: LENOVO

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

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.19 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19

[t.felder (t-felder)]

Hello
I had a few problem with this upstream kernel.
Somehow I could not boot anymore and often got at the bootup to error message :
Gnome display manager. Dispatcher service... tpacpi::kbd_backlight

I reinstalled gdm3 and after a reboot, i could boot the computer. The boot took however very long and still got stucked for a while (but i did't looked at the command line)

But the touchpad now works and i can use the right click (Y)
Thanks

If I manage to reproduce the booting bug, I'll publish a new bug with more informations