I too am affected now. After suspend+resume, my touchpad isn't found. Rebooting doesn't help: I really have to turn the machine off and on again.
I can attach mouse, and then if I try to open touchpad settings in Input Devices settings (I use Kubuntu), it says that Touchpad isn't found, and xinput doesn't show it either. - Fujitsu E556 laptop - 4.15.0-20-generic #21-Ubuntu I still have Ubuntu 16.04 on one SSD with the kernel 4.4.0-119-generic, and the issue doesn't appear there. I think the issue didn't appear on Kubuntu 17.04 either. I didn't try 17.10. The workaround mentioned in the original post didn't work for me. When I ran sudo modprobe i2c-hid, I got this message: rmmod: ERROR: Module i2c_hid is not currently loaded The command sudo modprobe i2c-hid completed, but the touchpad didn't start working. -- 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/1723799 Title: touchpad not working after resume on kernel 4.13 Status in linux package in Ubuntu: Fix Released Status in linux source package in Artful: Fix Released Bug description: I'm running Ubuntu 17.10 [Ubuntu Artful Aardvark (development branch) installed from beta 2 ISO with latest apt update && apt dist-upgrade] with kernel: $ uname -rv 4.13.0-16-generic #19-Ubuntu SMP Wed Oct 11 18:35:14 UTC 2017 and after putting system to sleep via closing laptop lid and then resuming it by opening laptop lid makes touchpad not working. Kernel message buffer contains following error message after resume: PM: Device i2c-SYNA3105:00 failed to resume async: error -11 and I can find other people reporting similar issue on other distros: https://bugzilla.redhat.com/show_bug.cgi?id=1431375 https://bugzilla.kernel.org/show_bug.cgi?id=195949 https://bugzilla.redhat.com/show_bug.cgi?id=1442699 like in those other bug reports I can workaround the problem by: rmmod i2c-hid modprobe i2c-hid in systemd-suspend.service(8) post scripts. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-extra-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mkucharski 1367 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Sun Oct 15 22:49:38 2017 HibernationDevice: RESUME=UUID=aa9acb18-b692-4020-9811-d58e5c8b8857 InstallationDate: Installed on 2017-10-06 (9 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170926) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 05c8:03a1 Cheng Uei Precision Industry Co., Ltd (Foxlink) Bus 001 Device 002: ID 8087:0a2b Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Timi TM1607 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-16-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/07/2017 dmi.bios.vendor: INSYDE Corp. dmi.bios.version: XMAKB200P0100 dmi.board.asset.tag: Any dmi.board.name: TM1607 dmi.board.vendor: Timi dmi.board.version: MP dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Timi dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnINSYDECorp.:bvrXMAKB200P0100:bd05/07/2017:svnTimi:pnTM1607:pvr:rvnTimi:rnTM1607:rvrMP:cvnTimi:ct10:cvrChassisVersion: dmi.product.family: Timibook dmi.product.name: TM1607 dmi.sys.vendor: Timi To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1723799/+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