Please also attach dmesg under 4.15.0-43 kernel. Seems like there's no direct change to HID and input subsystem between -42 and -43: $ git log Ubuntu-4.15.0-42.45..Ubuntu-4.15.0-43.46 --pretty=oneline ac131e31e46d2445cb5eb3a2e1d74951d5d0a304 UBUNTU: link-to-tracker: update tracking bug 5c727d0a7423bc700c87057918436e6b1e9870b1 UBUNTU: SAUCE: base/dd: limit release function changes to vfio driver only 6a089ef92469bee3c5251f9158de9da51cc6a068 xhci: workaround CSS timeout on AMD SNPS 3.0 xHC 45d2957612457139c5fd7b69a040cff5a74322bf xhci: Allow more than 32 quirks 45fc25deac8d9ac1eaefe444fceb9b90100e9348 UBUNTU: [Config] buildinfo -- add retpoline version markers 55ccc1493181e32481e1da17242bf2d809c89cc0 UBUNTU: [Packaging] buildinfo -- add buildinfo support to getabis 048c8b70eb7191a6bae54ce2841640aaba46e3cc UBUNTU: [Packaging] buildinfo -- add compiler information to the flavour ABI 7ea1dbf2d7e603b57345b7b203cdd9b10ca1d760 UBUNTU: [Packaging] buildinfo -- add firmware information to the flavour ABI 3f0288f5295f87f10546e726e9b742ca3243a750 UBUNTU: [Packaging] buildinfo -- add basic build information e846e5255ef72a2595eb1622d146ec77d30d1faf UBUNTU: [Packaging] ABI -- accumulate abi information at the end of the build 0805cf7c55456c84672aaf44b1cbff1c8cc7b399 UBUNTU: [Packaging] commonise debhelper invocation 261ccf6f0c473f82b6bc0135e1a20f8e5664f67a UBUNTU: [Packaging] limit preparation to linux-libc-dev in headers d502621d2ef9426652ff4c9dd7c9f159e78f670e UBUNTU: [Packaging] own /usr/lib/linux/triggers 4729028b88966b5e7f7b084eb815d5d5183bccf5 posix-timers: Sanitize overrun handling 76cc4343a0136b070c1edcb4b4ba69a5c3044b47 USB: yurex: fix out-of-bounds uaccess in read handler 8ae7cdc79d11418cbdbf285167cec8839ac888f3 ALSA: rawmidi: Change resized buffers atomically e62b922413b07d76cb0b482297c83389aa30ec11 cdrom: fix improper type cast, which can leat to information leak. 6070c02cb1bb593c6231b79475e64460f771bc03 xfs: don't fail when converting shortform attr to long form during ATTR_REPLACE 390874d6c6796e408c2d6a2802f36892dc34024e infiniband: fix a possible use-after-free bug 4c6d059c98e9af31d44138d02a2047bc2beabd3f bpf: 32-bit RSH verification must truncate input before the ALU op 471496188992a8789073ebc651e1345debb05fee UBUNTU: [Packaging] update helper scripts 3af3bb3f1dbb5eb578e085153635b2a63ef605e8 UBUNTU: Start new release
-- 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/1809993 Title: Lenovo X1C6 trackpad functions broken Status in linux package in Ubuntu: Confirmed Bug description: Summary: After kernel update the trackpad advanced functions, like two finger scrolling and mouse acceleration have stopped working. Expected Result: Two finer scroll works and the mouse has acceleration features work Actual Result: Two finer scroll works and the mouse has acceleration features do not work Steps to reproduce: 1. Lenovo X1C6 (LENOVO 20KHCTO1WW/20KHCTO1WW, BIOS N23ET59W (1.34 ) 11/08/2018) 2. Install 18.04 LTS 3. config-4.15.0-42-generic acceleration works, while config-4.15.0-43-generic does not This appears to be some sort of regression or change in behavior between kernel versions. --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: powersj 1597 F.... pulseaudio CurrentDesktop: communitheme:ubuntu:GNOME DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=1eb43198-8ef5-4035-8b81-74c3e2936ad7 InstallationDate: Installed on 2018-12-06 (22 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 5986:2115 Acer, Inc Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 20KHCTO1WW Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-42-generic root=/dev/mapper/ubuntu--vg-root ro ProcVersionSignature: Ubuntu 4.15.0-42.45-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-42-generic N/A linux-backports-modules-4.15.0-42-generic N/A linux-firmware 1.173.2 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no Tags: bionic Uname: Linux 4.15.0-42-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip libvirt lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 11/08/2018 dmi.bios.vendor: LENOVO dmi.bios.version: N23ET59W (1.34 ) dmi.board.asset.tag: Not Available dmi.board.name: 20KHCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0J40709 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN23ET59W(1.34):bd11/08/2018:svnLENOVO:pn20KHCTO1WW:pvrThinkPadX1Carbon6th:rvnLENOVO:rn20KHCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad X1 Carbon 6th dmi.product.name: 20KHCTO1WW dmi.product.version: ThinkPad X1 Carbon 6th dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1809993/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
