Public bug reported:

Ubuntu 5.4.0-84.94-generic 5.4.133

Description:    Ubuntu 20.04.3 LTS
Release:        20.04

xinput -list
⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ Logitech Wireless Receiver Mouse          id=11   [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)]
    ↳ Video Bus                                 id=8    [slave  keyboard (3)]
    ↳ Power Button                              id=9    [slave  keyboard (3)]
    ↳ Sleep Button                              id=10   [slave  keyboard (3)]
    ↳ Integrated_Webcam_HD: Integrate           id=12   [slave  keyboard (3)]
    ↳ Dell WMI hotkeys                          id=13   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=14   [slave  keyboard (3)]
    ↳ DELL Wireless hotkeys                     id=15   [slave  keyboard (3)]


xinput shows no touchpad 
Touchpad is not working

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-84-generic 5.4.0-84.94
ProcVersionSignature: Ubuntu 5.4.0-84.94-generic 5.4.133
Uname: Linux 5.4.0-84-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.24
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  reveur     3039 F.... pulseaudio
 /dev/snd/controlC0:  reveur     3039 F.... pulseaudio
CurrentDesktop: Unity:Unity7:ubuntu
Date: Mon Sep 13 13:46:42 2021
HibernationDevice: RESUME=UUID=0d592d53-b697-445e-a05f-df427587848e
MachineType: Dell Inc. Inspiron 3558
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-84-generic 
root=UUID=5276c553-95fa-4b9f-aa57-08c119bd464c ro i8042.reset i8042.nomux=1 
i8042.nopnp i8042.noloop
RelatedPackageVersions:
 linux-restricted-modules-5.4.0-84-generic N/A
 linux-backports-modules-5.4.0-84-generic  N/A
 linux-firmware                            1.187.16
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/15/2015
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 0G1TDD
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvrA07:bd12/15/2015:svnDellInc.:pnInspiron3558:pvr:rvnDellInc.:rn0G1TDD:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Inspiron 3558
dmi.product.sku: 06B0
dmi.sys.vendor: Dell Inc.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug focal

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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1943425

Title:
  Touchpad is not working and detected

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu 5.4.0-84.94-generic 5.4.133

  Description:  Ubuntu 20.04.3 LTS
  Release:      20.04

  xinput -list
  ⎡ Virtual core pointer                        id=2    [master pointer  (3)]
  ⎜   ↳ Virtual core XTEST pointer                      id=4    [slave  pointer 
 (2)]
  ⎜   ↳ Logitech Wireless Receiver Mouse                id=11   [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)]
      ↳ Video Bus                                       id=8    [slave  
keyboard (3)]
      ↳ Power Button                                    id=9    [slave  
keyboard (3)]
      ↳ Sleep Button                                    id=10   [slave  
keyboard (3)]
      ↳ Integrated_Webcam_HD: Integrate                 id=12   [slave  
keyboard (3)]
      ↳ Dell WMI hotkeys                                id=13   [slave  
keyboard (3)]
      ↳ AT Translated Set 2 keyboard                    id=14   [slave  
keyboard (3)]
      ↳ DELL Wireless hotkeys                           id=15   [slave  
keyboard (3)]

  
  xinput shows no touchpad 
  Touchpad is not working

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: linux-image-5.4.0-84-generic 5.4.0-84.94
  ProcVersionSignature: Ubuntu 5.4.0-84.94-generic 5.4.133
  Uname: Linux 5.4.0-84-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.24
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  reveur     3039 F.... pulseaudio
   /dev/snd/controlC0:  reveur     3039 F.... pulseaudio
  CurrentDesktop: Unity:Unity7:ubuntu
  Date: Mon Sep 13 13:46:42 2021
  HibernationDevice: RESUME=UUID=0d592d53-b697-445e-a05f-df427587848e
  MachineType: Dell Inc. Inspiron 3558
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-84-generic 
root=UUID=5276c553-95fa-4b9f-aa57-08c119bd464c ro i8042.reset i8042.nomux=1 
i8042.nopnp i8042.noloop
  RelatedPackageVersions:
   linux-restricted-modules-5.4.0-84-generic N/A
   linux-backports-modules-5.4.0-84-generic  N/A
   linux-firmware                            1.187.16
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/15/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A07
  dmi.board.name: 0G1TDD
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvrA07:bd12/15/2015:svnDellInc.:pnInspiron3558:pvr:rvnDellInc.:rn0G1TDD:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Inspiron 3558
  dmi.product.sku: 06B0
  dmi.sys.vendor: Dell Inc.

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