Touchpad not working

[Shubham Patil]

Dear Sir,
        I have updated ubuntu 18.04 to 20.04 in the last 4 days. My laptop's touchpad worked well in the last system, but when I have updated it to 20.04 then touchpad not working, when I started my laptop. I have use a mouse. When I have start my laptop with connected mouse then touchpad not work. but, when I have started a laptop without connected with mouse then touchpad worked. Solve this issue properly. Thank you...

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-37-generic 5.4.0-37.41
ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41
Uname: Linux 5.4.0-37-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: spshubham 1767 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Jun 24 12:53:16 2020
HibernationDevice: RESUME=UUID=473a994d-cd87-4373-94ae-e2ff8edce101
InstallationDate: Installed on 2020-06-18 (5 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
MachineType: Dell Inc. Inspiron 3521
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IN
 SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-37-generic root=UUID=13763414-9331-414c-b5ad-ef7d3fa37ff2 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-5.4.0-37-generic N/A
 linux-backports-modules-5.4.0-37-generic N/A
 linux-firmware 1.187
SourcePackage: linux
UpgradeStatus: Upgraded to focal on 2020-06-20 (3 days ago)
dmi.bios.date: 05/24/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A16
dmi.board.name: 0JYTX5
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A16
dmi.modalias: dmi:bvnDellInc.:bvrA16:bd05/24/2018:svnDellInc.:pnInspiron3521:pvrA16:rvnDellInc.:rn0JYTX5:rvrA00:cvnDellInc.:ct8:cvrA16:
dmi.product.family: 103C_5335KV
dmi.product.name: Inspiron 3521
dmi.product.sku: Inspiron 3521
dmi.product.version: A16
dmi.sys.vendor: Dell Inc.

[Mike Salvatore (mikesalvatore)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[You-Sheng Yang (vicamo)]

P: /devices/platform/i8042/serio1
L: 0
E: DEVPATH=/devices/platform/i8042/serio1
E: SUBSYSTEM=serio
E: SERIO_TYPE=01
E: SERIO_PROTO=00
E: SERIO_ID=00
E: SERIO_EXTRA=00
E: MODALIAS=serio:ty01pr00id00ex00
E: SERIO_FIRMWARE_ID=PNP: DLL0597 PNP0f13

Please append following kernel boot parameters, reboot and attach output of `journalctl -b`:

  "dyndbg=file drivers/input/* +pt" i8042.debug=1 log_buf_len=32M

For detailed steps, please see https://askubuntu.com/questions/19486/how-do-i-add-a-kernel-boot-parameter.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]