I added "i8042.nopnp=1 pci=nocrs" to "GRUB_CMDLINE_LINUX_DEFAULT" (as suggested here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881322/comments/3), updated grub and rebooted. The touchpad still does not work (rather is not recognized).
-- 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/1938538 Title: Touchpad not working in Ubuntu 21.04 Status in linux package in Ubuntu: New Bug description: Lenovo Thinkpad X1 Yoga Titanium (Model: 20QBS02G00) Synaptics touchpad not working after Upgrade from 20.04 LTS to 21.04 ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: linux-image-5.11.0-25-generic 5.11.0-25.27 ProcVersionSignature: Ubuntu 5.11.0-25.27-generic 5.11.22 Uname: Linux 5.11.0-25-generic x86_64 ApportVersion: 2.20.11-0ubuntu65.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: amelie 4095 F.... pulseaudio CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Fri Jul 30 12:09:12 2021 InstallationDate: Installed on 2021-07-28 (1 days ago) InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022) MachineType: LENOVO 20QBS02G00 ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.11.0-25-generic root=/dev/mapper/vgubuntu-root ro nomodeset quiet splash acpi_backlight=vendor acpi_osi=Linux vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.11.0-25-generic N/A linux-backports-modules-5.11.0-25-generic N/A linux-firmware 1.197.2 SourcePackage: linux UpgradeStatus: Upgraded to hirsute on 2021-07-29 (0 days ago) dmi.bios.date: 05/20/2021 dmi.bios.release: 1.14 dmi.bios.vendor: LENOVO dmi.bios.version: N2MET49W (1.14 ) dmi.board.asset.tag: Not Available dmi.board.name: 20QBS02G00 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.ec.firmware.release: 1.9 dmi.modalias: dmi:bvnLENOVO:bvrN2MET49W(1.14):bd05/20/2021:br1.14:efr1.9:svnLENOVO:pn20QBS02G00:pvrThinkPadX1TitaniumGen1:rvnLENOVO:rn20QBS02G00:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad X1 Titanium Gen 1 dmi.product.name: 20QBS02G00 dmi.product.sku: LENOVO_MT_20QB_BU_Think_FM_ThinkPad X1 Titanium Gen 1 dmi.product.version: ThinkPad X1 Titanium Gen 1 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1938538/+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