[Bug 1885270] [NEW] Touchpad stopped working after upgrading to Ubuntu 20.04
Public bug reported: When I upgraded to Ubuntu 20.04 my touchpad stopped working. When I used the command xinput to list the input devices there was a PS/2 Generic Mouse registered instead of my Lenovo Yoga 13 touchpad. I tried to search for the same on the askubuntu forum. I got the answer that to try and remove psmouse and then again add it using the command sudo modprobe -r psmouse; sudo modprobe psmouse This initially solved my problem but later on the same issue arose after restarting the machine. The touchpad also is again reported as a generic mouse if the system is suspended. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-39-generic 5.4.0-39.43 ProcVersionSignature: Ubuntu 5.4.0-39.43-generic 5.4.41 Uname: Linux 5.4.0-39-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: lokesh 1790 F pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Fri Jun 26 16:45:45 2020 InstallationDate: Installed on 2019-08-15 (315 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) MachineType: LENOVO Mocca 2.0 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-39-generic root=UUID=a610e76e-890e-442a-b764-c81d6becd466 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-39-generic N/A linux-backports-modules-5.4.0-39-generic N/A linux-firmware1.187 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2020-05-15 (42 days ago) dmi.bios.date: 02/28/2013 dmi.bios.vendor: LENOVO dmi.bios.version: 66CN55WW dmi.board.asset.tag: No Asset Tag dmi.board.name: INVALID dmi.board.vendor: LENOVO dmi.board.version: 3196Win8 STD MBR IPG dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Yoga 13 dmi.modalias: dmi:bvnLENOVO:bvr66CN55WW:bd02/28/2013:svnLENOVO:pnMocca2.0:pvrYoga13:rvnLENOVO:rnINVALID:rvr3196Win8STDMBRIPG:cvnLENOVO:ct10:cvrYoga13: dmi.product.family: IDEAPAD dmi.product.name: Mocca 2.0 dmi.product.sku: LENOVO_BI_IDEAPAD66 dmi.product.version: Yoga 13 dmi.sys.vendor: LENOVO ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1885270 Title: Touchpad stopped working after upgrading to Ubuntu 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1885270/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1885270] Re: Touchpad stopped working after upgrading to Ubuntu 20.04
The output of journalctl -b ** Attachment added: "h-Yoga-13 kernel: node 0: [mem 0x40005000-0xc4da]" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1885270/+attachment/5391916/+files/h-Yoga-13%20kernel%3A%20node%200%3A%20%5Bmem%200x40005000-0xc4da%5D -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1885270 Title: Touchpad stopped working after upgrading to Ubuntu 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1885270/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1885270] Re: Touchpad stopped working after upgrading to Ubuntu 20.04
Even upgrading the kernel to 5.7.8-050708-generic did not solve the problem. Also, "dyndbg=file drivers/input/* +pt" i8042.debug=1 log_buf_len=32M command solved the problem for some minutes only then the touchpad again started to be detected as ps2 generic mouse. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1885270 Title: Touchpad stopped working after upgrading to Ubuntu 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1885270/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
