This problem persists with Ubuntu 20.10 released today. The modprobe/rmmod/modprobe method above still works there, however it is very inconvenient to have to perform those steps after each reboot. Unfortunate, as Ubuntu has been the distro that I've used and recommended to others for the last four years based on "it just works".
-- 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/1895202 Title: touchpad suddenly not detected, appearing as PS/2 mouse in devices Status in linux package in Ubuntu: Confirmed Bug description: I can't even recall making any upgrades. Lenovo X1 Extreme. ~ xinput --list ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ Synaptics TM3418-002 id=12 [slave pointer (2)] ⎜ ↳ PS/2 Generic Mouse id=13 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Video Bus id=7 [slave keyboard (3)] ↳ Sleep Button id=8 [slave keyboard (3)] ↳ Integrated Camera: Integrated C id=9 [slave keyboard (3)] ↳ AT Raw Set 2 keyboard id=10 [slave keyboard (3)] ↳ ThinkPad Extra Buttons id=11 [slave keyboard (3)] ➜ ~ cat /var/log/Xorg.0.log | grep -i synaptics [ 12.190] (II) config/udev: Adding input device Synaptics TM3418-002 (/dev/input/event7) [ 12.190] (**) Synaptics TM3418-002: Applying InputClass "libinput touchpad catchall" [ 12.190] (II) Using input driver 'libinput' for 'Synaptics TM3418-002' [ 12.190] (**) Synaptics TM3418-002: always reports core events [ 12.192] (II) event7 - Synaptics TM3418-002: is tagged by udev as: Touchpad [ 12.193] (II) event7 - Synaptics TM3418-002: device is a touchpad [ 12.194] (II) event7 - Synaptics TM3418-002: device removed [ 12.194] (II) XINPUT: Adding extended input device "Synaptics TM3418-002" (type: TOUCHPAD, id 12) [ 12.194] (**) Synaptics TM3418-002: (accel) selected scheme none/0 [ 12.194] (**) Synaptics TM3418-002: (accel) acceleration factor: 2.000 [ 12.194] (**) Synaptics TM3418-002: (accel) acceleration threshold: 4 [ 12.195] (II) event7 - Synaptics TM3418-002: is tagged by udev as: Touchpad [ 12.195] (II) event7 - Synaptics TM3418-002: device is a touchpad [ 12.196] (II) config/udev: Adding input device Synaptics TM3418-002 (/dev/input/mouse0) [ 34.235] (II) event7 - Synaptics TM3418-002: device removed ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-47-generic 5.4.0-47.51 ProcVersionSignature: Ubuntu 5.4.0-47.51-generic 5.4.55 Uname: Linux 5.4.0-47-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: ole 2093 F.... pulseaudio /dev/snd/controlC0: ole 2093 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Thu Sep 10 21:45:53 2020 InstallationDate: Installed on 2019-03-30 (530 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3) MachineType: LENOVO 20MFCTO1WW ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-47-generic root=UUID=37b4f683-cd0d-4eb9-b05a-973790230aa4 ro i8042.reset quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-47-generic N/A linux-backports-modules-5.4.0-47-generic N/A linux-firmware 1.187.3 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/15/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N2EET48W (1.30 ) dmi.board.asset.tag: Not Available dmi.board.name: 20MFCTO1WW dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN2EET48W(1.30):bd05/15/2020:svnLENOVO:pn20MFCTO1WW:pvrThinkPadX1Extreme:rvnLENOVO:rn20MFCTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad X1 Extreme dmi.product.name: 20MFCTO1WW dmi.product.sku: LENOVO_MT_20MF_BU_Think_FM_ThinkPad X1 Extreme dmi.product.version: ThinkPad X1 Extreme dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1895202/+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
