After upgrading to kernel 5.0.0-31-generic:amd64, click with one finger and drag with the other doesn't work on the touchpad.

[Rob Frohne]

I just upgraded to linux kernel 5.0.0-31. When I use the trackpad on my Lenovo Yoga 260 to click with one finger, and drag with another, it doesn't move the thing I'm trying to drag. If I use one finger, it works fine, but its hard to drag it far with only one finger, because I can't pick the finger up and move it back to drag some more. I went and booted from 5.0.0-29, and everything is fine again. I'm back to 5.0.0-31 and the problem is back.

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: linux-modules-5.0.0-31-generic:amd64 5.0.0-31.33
ProcVersionSignature: Ubuntu 5.0.0-31.33-generic 5.0.21
Uname: Linux 5.0.0-31-generic x86_64
ApportVersion: 2.20.10-0ubuntu27.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: frohro 2367 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Fri Oct 4 22:14:28 2019
Dependencies:

InstallationDate: Installed on 2019-04-19 (169 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Alpha amd64 (20190326.2)
MachineType: LENOVO 20FES0EX00
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-31-generic root=/dev/mapper/ubuntu--vg-root ro
RelatedPackageVersions:
 linux-restricted-modules-5.0.0-31-generic N/A
 linux-backports-modules-5.0.0-31-generic N/A
 linux-firmware 1.178.3
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/26/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: N1GET91W (1.70 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20FES0EX00
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40700 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 31
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN1GET91W(1.70):bd06/26/2018:svnLENOVO:pn20FES0EX00:pvrThinkPadYoga260:rvnLENOVO:rn20FES0EX00:rvrSDK0J40700WIN:cvnLENOVO:ct31:cvrNone:
dmi.product.family: ThinkPad Yoga 260
dmi.product.name: 20FES0EX00
dmi.product.sku: LENOVO_MT_20FE_BU_Think_FM_ThinkPad Yoga 260
dmi.product.version: ThinkPad Yoga 260
dmi.sys.vendor: LENOVO

[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/v5.4-rc1/

If it works we probably need to backport this fix:
https://<email address hidden>/

[Rob Frohne (frohro)]

Thanks! The mainline 5.4 kernel works fine.

Again, thanks!

Rob

[Kai-Heng Feng (kaihengfeng)]

Should be fixed in 5.0.0-32.34.

[Rob Frohne (frohro)]

Thanks!!!

Rob

[Rob Frohne (frohro)]

Confirmed! It works in this kernel:
$ uname -r
5.0.0-32-generic

Again, thanks!