[Bug 1722478] Re: Two-finger scrolling and click-and-drag no longer works after resuming from suspend

[Robert Jonsson]

Thinkpad T400 with non working two finger scroll here running Kubuntu
20.04, I just wanted to comment that none of the above solutions worked
for me, but one that I found buried in a youtube video did get it to
work! And I just can't leave it visible ONLY in a video, it's just not
right.

What it boils down to is running these three xinput commands (I'm sure someone with more knowledge can say what this actually does and possibly the corresponding configuration file settings)
xinput --set-prop --type=int --format=32 "SynPS/2 Synaptics TouchPad" "Synaptics Two-Finger Width" 8
xinput --set-prop --type=int --format=32 "SynPS/2 Synaptics TouchPad" "Synaptics Two-Finger Pressure" 4
xinput --set-prop --type=int  --format=8 "SynPS/2 Synaptics TouchPad" "Synaptics Two-Finger Scrolling" 1 0

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Title:
  Two-finger scrolling and click-and-drag no longer works after resuming
  from suspend

Status in Linux:
  Confirmed
Status in kmod package in Ubuntu:
  Confirmed
Status in linux package in Ubuntu:
  Invalid

Bug description:
  I own a Thinkpad T440p onto which I have had Debian 9 running without
  hardware issues. I have recently installed Ubuntu 17.10 final beta to
  test it out, but two-finger scrolling does not work at the moment. It
  used to work out-of-the-box from the final beta iso, but a subsequent
  update broke it.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: linux-image-4.13.0-12-generic 4.13.0-12.13 [modified: boot/vmlinuz-4.13.0-12-generic]
  ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3
  Uname: Linux 4.13.0-12-generic x86_64
  ApportVersion: 2.20.7-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ghislain  10620 F.... pulseaudio
   /dev/snd/controlC0:  ghislain  10620 F.... pulseaudio
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Oct 10 09:20:01 2017
  HibernationDevice: RESUME=UUID=ae4cca1e-80ef-4a1e-87e3-0a860b49492e
  InstallationDate: Installed on 2017-10-05 (4 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170926)
  MachineType: LENOVO 20AN00C1UK
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-12-generic root=/dev/mapper/doc1485--lap--vg-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.13.0-12-generic N/A
   linux-backports-modules-4.13.0-12-generic  N/A
   linux-firmware                             1.169
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/31/2016
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GLET83WW (2.37 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20AN00C1UK
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50510 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrGLET83WW(2.37):bd03/31/2016:svnLENOVO:pn20AN00C1UK:pvrThinkPadT440p:rvnLENOVO:rn20AN00C1UK:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.family: ThinkPad T440p
  dmi.product.name: 20AN00C1UK
  dmi.product.version: ThinkPad T440p
  dmi.sys.vendor: LENOVO

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