I can confirm this bug as well (using Linux Mint 20, Kernel 5.4.0-48-generic) with the same laptop.
However, I can offer a partial workaround: After adding "i8042.nomux i8042.notimeout" to the kernel command line (i.e. via GRUB_CMDLINE_LINUX in /etc/default/grub), the trackpad will be properly recognized and shown in the dmesg output. It still won't work out of the box BUT after suspending and resuming the laptop, it basically works. Occasionally, keyboard and/or trackpad will stop working which can be fixed by a reboot. The type of trackpad seems to be an Elantech Touchpad hw version 4. -- 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/1893663 Title: touchpad not detected Status in linux package in Ubuntu: Confirmed Bug description: Fujitsu Lifebook U7410 core7 10th generation (Model: 7U14A1) S26391-K502-V100 no information on the touchpad fresh install ubuntu 20.04LTS ********************************************* touchpad is not detected ********************************************* sudo lspci -vnvn > lspci-vnvn.log more lspci-vnvn.log 00:00.0 Host bridge [0600]: Intel Corporation Device [8086:9b61] (rev 0c) Subsystem: Fujitsu Client Computing Limited Device [1e26:003f] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Capabilities: [e0] Vendor Specific Information: Len=10 <?> 00:02.0 VGA compatible controller [0300]: Intel Corporation UHD Graphics [8086:9b41] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Fujitsu Client Computing Limited UHD Graphics [1e26:004a] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 169 Region 0: Memory at 6025000000 (64-bit, non-prefetchable) [size=16M] Region 2: Memory at 4000000000 (64-bit, prefetchable) [size=256M] Region 4: I/O ports at 6000 [size=64] Expansion ROM at 000c0000 [virtual] [disabled] [size=128K] Capabilities: [40] Vendor Specific Information: Len=0c <?> Capabilities: [70] Express (v2) Root Complex Integrated Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0 ExtTag- RBE+ FLReset+ DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- FLReset- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend- DevCap2: Completion Timeout: Not Supported, TimeoutDis-, NROPrPrP-, LTR- 10BitTagComp-, 10BitTagReq-, OBFF Not Supported, ExtFmt-, EETLPPrefix- EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit- FRS- AtomicOpsCap: 32bit- 64bit- 128bitCAS- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled AtomicOpsCtl: ReqEn- Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee00018 Data: 0000 Capabilities: [d0] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [100 v1] Process Address Space ID (PASID) PASIDCap: Exec- Priv-, Max PASID Width: 14 PASIDCtl: Enable- Exec- Priv- Capabilities: [200 v1] Address Translation Service (ATS) ATSCap: Invalidate Queue Depth: 00 ATSCtl: Enable-, Smallest Translation Unit: 00 Capabilities: [300 v1] Page Request Interface (PRI) PRICtl: Enable- Reset- PRISta: RF- UPRGI- Stopped+ Page Request Capacity: 00008000, Page Request Allocation: 00000000 Kernel driver in use: i915 **************************************************************** cat /proc/version_signature > version.log more version.log Ubuntu 5.4.0-42.46-generic 5.4.44 ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-42-generic 5.4.0-42.46 ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44 Uname: Linux 5.4.0-42-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: tmadmin 2348 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Mon Aug 31 16:22:12 2020 InstallationDate: Installed on 2020-08-31 (0 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) MachineType: FUJITSU CLIENT COMPUTING LIMITED LIFEBOOK U7410 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-42-generic root=UUID=4dadb030-fc54-4457-a7cd-6934b85d602c ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-42-generic N/A linux-backports-modules-5.4.0-42-generic N/A linux-firmware 1.187.2 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/23/2020 dmi.bios.vendor: FUJITSU CLIENT COMPUTING LIMITED dmi.bios.version: Version 2.12 dmi.board.name: FJNB2D4 dmi.board.vendor: FUJITSU CLIENT COMPUTING LIMITED dmi.board.version: A2 dmi.chassis.type: 10 dmi.chassis.vendor: FUJITSU CLIENT COMPUTING LIMITED dmi.chassis.version: LIFEBOOK U7410 dmi.modalias: dmi:bvnFUJITSUCLIENTCOMPUTINGLIMITED:bvrVersion2.12:bd06/23/2020:svnFUJITSUCLIENTCOMPUTINGLIMITED:pnLIFEBOOKU7410:pvr10601115935:rvnFUJITSUCLIENTCOMPUTINGLIMITED:rnFJNB2D4:rvrA2:cvnFUJITSUCLIENTCOMPUTINGLIMITED:ct10:cvrLIFEBOOKU7410: dmi.product.family: LIFEBOOK-FTS dmi.product.name: LIFEBOOK U7410 dmi.product.sku: SK00 dmi.product.version: 10601115935 dmi.sys.vendor: FUJITSU CLIENT COMPUTING LIMITED To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1893663/+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
