@kaihengfeng I installed the udev and libudev packages you provided but I got two errors during installation. After installing these two packages I rebooted, and the trackpad is still not working, I cannot make the trackpad work anymore, even with the two commands above that used to do the magic. Any rollback? If I marked these two packages as removal in synaptic I will remove a lot of packages linked to them, even some system packages.
(Reading database ... 225803 files and directories currently installed.) Preparing to unpack libudev1_232-21ubuntu3_amd64.deb ... Unpacking libudev1:amd64 (232-21ubuntu3) over (232-21ubuntu3) ... Preparing to unpack udev_232-21ubuntu3_amd64.deb ... Unpacking udev (232-21ubuntu3) over (232-21ubuntu3) ... Setting up libudev1:amd64 (232-21ubuntu3) ... Setting up udev (232-21ubuntu3) ... Error, DATA expected but got 'evdev:name:PS/2 Logitech Wheel Mouse:dmi:*svnLENOVO*:pvrLenovoideapadY700-15ISK*' in '/lib/udev/hwdb.d/70-touchpad.hwdb': Error, MATCH expected but got ' PSMOUSE_PROTOCOL=elantech' in '/lib/udev/hwdb.d/70-touchpad.hwdb': addgroup: The group `input' already exists as a system group. Exiting. update-initramfs: deferring update (trigger activated) Processing triggers for libc-bin (2.24-9ubuntu2) ... Processing triggers for ureadahead (0.100.0-19) ... ureadahead will be reprofiled on next reboot Processing triggers for systemd (232-21ubuntu3) ... Processing triggers for man-db (2.7.6.1-2) ... Processing triggers for initramfs-tools (0.125ubuntu9) ... update-initramfs: Generating /boot/initrd.img-4.12.0-041200rc3-generic W: Possible missing firmware /lib/firmware/i915/kbl_huc_ver02_00_1810.bin for module i915 W: Possible missing firmware /lib/firmware/i915/bxt_huc_ver01_07_1398.bin for module i915 W: Possible missing firmware /lib/firmware/i915/skl_huc_ver01_07_1398.bin for module i915 -- 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/1693440 Title: Cypress PS/2 Trackpad not working Status in linux package in Ubuntu: Confirmed Bug description: I installed Ubuntu 17.04 on my laptop and found the trackpad is not working. I can make it work after running commands below. But it won`t work after reboot, I have to run the commands again to make it work. The two-finger scrolling is not working also, even with commands below. Any fix to this issue? sudo modprobe -r psmouse sudo modprobe psmouse proto=imps ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: linux-image-4.10.0-21-generic 4.10.0-21.23 ProcVersionSignature: Ubuntu 4.10.0-21.23-generic 4.10.11 Uname: Linux 4.10.0-21-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.10.0-21-generic. ApportVersion: 2.20.4-0ubuntu4.1 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC0D0p: austinchan 1208 F...m pulseaudio /dev/snd/controlC0: austinchan 1208 F.... pulseaudio Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0x91410000 irq 313' Mixer name : 'Realtek ALC269VC' Components : 'HDA:10ec0269,1bab1510,00100203 HDA:80862883,80860101,00100000' Controls : 37 Simple ctrls : 13 CurrentDesktop: LXDE Date: Thu May 25 15:36:51 2017 HibernationDevice: RESUME=UUID=ba951d4d-94f7-40e9-a9c4-bb371c905cb9 InstallationDate: Installed on 2017-05-21 (3 days ago) InstallationMedia: Lubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 0bda:b720 Realtek Semiconductor Corp. Bus 001 Device 008: ID 0bda:8179 Realtek Semiconductor Corp. RTL8188EUS 802.11n Wireless Network Adapter Bus 001 Device 002: ID 090c:037c Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) 300k Pixel Camera Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LYZPIN SL ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-21-generic.efi.signed root=UUID=883b511c-a36b-4c81-abe7-467e4c5421e6 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.10.0-21-generic N/A linux-backports-modules-4.10.0-21-generic N/A linux-firmware 1.164.1 RfKill: 7: hci0: Bluetooth Soft blocked: yes Hard blocked: no SourcePackage: linux StagingDrivers: r8188eu UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/29/2015 dmi.bios.vendor: INSYDE Corp. dmi.bios.version: 22.16 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: SL dmi.board.vendor: LYZPIN dmi.board.version: Type2 - Board Version dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LYZPIN dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnINSYDECorp.:bvr22.16:bd07/29/2015:svnLYZPIN:pnSL:pvrType1-TBDbyOEM:rvnLYZPIN:rnSL:rvrType2-BoardVersion:cvnLYZPIN:ct10:cvrChassisVersion: dmi.product.name: SL dmi.product.version: Type1 - TBD by OEM dmi.sys.vendor: LYZPIN To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1693440/+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
