Hello,

does it work if you edit your grub file /etc/default/grub with:
  sudo nano /etc/default/grub

And add the "i8042.reset" option in the following line, to change it from:
  GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

into something like:
  GRUB_CMDLINE_LINUX_DEFAULT="i8042.reset quiet splash"

Save the file and exit, then execute:
 sudo update-grub

Please attach the dmesg output after reboot with this option added to
your grub. Thanks!

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1909898

Title:
  No response from TouchPad in 'Acer Aspire 5 A517-52G-79Z5' after
  installing Ubuntu 20.04.1 LTS

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  If I remember correctly the touchpad was already not responding when
  booting into Ubuntu from USB stick.

  I followed the guidline
  https://wiki.ubuntu.com/DebuggingTouchpadDetection#generalinfo.
  Unfortunately, I have not found the manufacturer of the touchpad. In
  the

  cat /proc/bus/input/devices > ~/devices

  output I could not find any 'touchpad' entry. Output file 'devices' is
  attached.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: linux-image-5.4.0-58-generic 5.4.0-58.64
  ProcVersionSignature: Ubuntu 5.4.0-58.64-generic 5.4.73
  Uname: Linux 5.4.0-58-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu27.14
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Jan  3 12:35:18 2021
  InstallationDate: Installed on 2021-01-02 (0 days ago)
  InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  MachineType: Acer Aspire A517-52G
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-58-generic 
root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-5.4.0-58-generic N/A
   linux-backports-modules-5.4.0-58-generic  N/A
   linux-firmware                            1.187.6
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/02/2020
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V1.04
  dmi.board.asset.tag: Type2 - Board Chassis Location
  dmi.board.name: Jasmine_TL
  dmi.board.vendor: TGL
  dmi.board.version: V1.04
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.04
  dmi.modalias: 
dmi:bvnInsydeCorp.:bvrV1.04:bd11/02/2020:svnAcer:pnAspireA517-52G:pvrV1.04:rvnTGL:rnJasmine_TL:rvrV1.04:cvnAcer:ct10:cvrV1.04:
  dmi.product.family: Aspire 5
  dmi.product.name: Aspire A517-52G
  dmi.product.sku: 0000000000000000
  dmi.product.version: V1.04
  dmi.sys.vendor: Acer

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