This looks like a BIOS defect.  BIOS programmed BAR 0 to [mem
0xfe010000-0xfe010fff], but according to the PCI0 _CRS method, that area
is not routed to the PCI bus:

  ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-fe])
  pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
  pci_bus 0000:00: root bus resource [mem 0x3f800000-0xbfffffff window]
  pci 0000:00:1f.5: [8086:34a4] type 00 class 0x0c8000
  pci 0000:00:1f.5: reg 0x10: [mem 0xfe010000-0xfe010fff]
  pci 0000:00:1f.5: can't claim BAR 0 [mem 0xfe010000-0xfe010fff]: no 
compatible bridge window
  pci 0000:00:1f.5: BAR 0: no space for [mem size 0x00001000]
  pci 0000:00:1f.5: BAR 0: trying firmware assignment [mem 
0xfe010000-0xfe010fff]
  pci 0000:00:1f.5: BAR 0: [mem 0xfe010000-0xfe010fff] conflicts with Reserved 
[mem 0xfc800000-0xfe7fffff]
  pci 0000:00:1f.5: BAR 0: failed to assign [mem size 0x00001000]

Can you check to see whether a BIOS update is available?

Can you please attach the contents of /proc/iomem (I think you have to
save the contents as root in order to see the values).

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https://bugs.launchpad.net/bugs/1884232

Title:
  touchpad doesn't work at all on ACER Spin 5

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Touchpad is not working at all on ACER Spin 5 SP513-54N.

  According to
  
https://wiki.ubuntu.com/DebuggingTouchpadDetection#In_case_your_Touchpad_doesn.27t_work_at_all_.28No_response_from_the_Touchpad.29
  I am creating this kernel bug issue.

  There are more issues, too, like touchscreen not working and Ubuntu
  not installable - see here if interrested
  https://askubuntu.com/questions/1251719/

  I would like to run Ubuntu on this machine and I am willing to help
  with any debug or kernel tweaking... Please let me know.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: linux-image-5.4.0-26-generic 5.4.0-26.30
  ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
  Uname: Linux 5.4.0-26-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     4195 F.... pulseaudio
  CasperMD5CheckResult: skip
  CasperVersion: 1.445
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Jun 19 10:44:58 2020
  LiveMediaBuild: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  MachineType: Acer Spin SP513-54N
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz 
file=/cdrom/preseed/username.seed maybe-ubiquity quiet splash ---
  RelatedPackageVersions:
   linux-restricted-modules-5.4.0-26-generic N/A
   linux-backports-modules-5.4.0-26-generic  N/A
   linux-firmware                            1.187
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/21/2020
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V1.00
  dmi.board.name: Caboom_IL
  dmi.board.vendor: IL
  dmi.board.version: V1.00
  dmi.chassis.type: 31
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.00
  dmi.modalias: 
dmi:bvnInsydeCorp.:bvrV1.00:bd02/21/2020:svnAcer:pnSpinSP513-54N:pvrV1.00:rvnIL:rnCaboom_IL:rvrV1.00:cvnAcer:ct31:cvrV1.00:
  dmi.product.family: Spin 5
  dmi.product.name: Spin SP513-54N
  dmi.product.sku: 0000000000000000
  dmi.product.version: V1.00
  dmi.sys.vendor: Acer

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