I have a Thinkpad X1 Carbon 5th gen, and am also affected. Modprobing psmouse also temporarily fixes for me (but if comes back if I close the lid of my laptop and wake it up again), and adding the synaptics_intertouch option in grub also seems to prevent it from coming back.
It only started happening in the last few days, and I generally install updates whenever they are available, though I haven't been using my laptop every day (so it may have started happening in the last week or two at most). I'm surprised it did only start recently, given this bug was filed a while back. $ uname -a Linux x1carbon 4.15.0-36-generic #39-Ubuntu SMP Mon Sep 24 16:19:09 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.1 LTS Release: 18.04 Codename: bionic $ sudo apt-get install libinput-tools & sudo libinput list-devices Device: SynPS/2 Synaptics TouchPad Kernel: /dev/input/event6 Group: 8 Seat: seat0, default Size: 100x56mm Capabilities: pointer gesture Tap-to-click: disabled Tap-and-drag: enabled Tap drag lock: disabled Left-handed: disabled Nat.scrolling: disabled Middle emulation: disabled Calibration: n/a Scroll methods: *two-finger edge Click methods: *button-areas clickfinger Disable-w-typing: enabled Accel profiles: none Rotation: n/a -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1722478 Title: Two-finger scrolling no longer works after resuming from suspend Status in Linux: Confirmed Status in linux package in Ubuntu: Incomplete 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 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1722478/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
