Public bug reported:

Brand new Lenovo Legion 9 16IRX9. It doesn't seem to detect any touchpad. 
I also tested PopOS 24.04 liveUSB and it doesn't work.
In Windows 11 it works.

user@lenovo-Legion-9-16IRX9:~$ neofetch 
            .-/+oossssoo+/-.               user@droneracing-Legion-9-16IRX9 
        `:+ssssssssssssssssss+:`           
--------------------------------------- 
      -+ssssssssssssssssssyyssss+-         OS: Ubuntu 22.04.4 LTS x86_64 
    .ossssssssssssssssssdMMMNysssso.       Host: 83G0 Legion 9 16IRX9 
   /ssssssssssshdmmNNmmyNMMMMhssssss/      Kernel: 6.8.0-40-generic 
  +ssssssssshmydMMMMMMMNddddyssssssss+     Uptime: 27 mins 
 /sssssssshNMMMyhhyyyyhmNMMMNhssssssss/    Packages: 1859 (dpkg), 9 (snap) 
.ssssssssdMMMNhsssssssssshNMMMdssssssss.   Shell: bash 5.1.16 
+sssshhhyNMMNyssssssssssssyNMMMysssssss+   Resolution: 3200x2000 
ossyNMMMNyMMhsssssssssssssshmmmhssssssso   DE: GNOME 42.9 
ossyNMMMNyMMhsssssssssssssshmmmhssssssso   WM: Mutter 
+sssshhhyNMMNyssssssssssssyNMMMysssssss+   WM Theme: Adwaita 
.ssssssssdMMMNhsssssssssshNMMMdssssssss.   Theme: Yaru [GTK2/3] 
 /sssssssshNMMMyhhyyyyhdNMMMNhssssssss/    Icons: Yaru [GTK2/3] 
  +sssssssssdmydMMMMMMMMddddyssssssss+     Terminal: gnome-terminal 
   /ssssssssssshdmNNNNmyNMMMMhssssss/      CPU: Intel i9-14900HX (32) @ 
5.600GHz 
    .ossssssssssssssssssdMMMNysssso.       GPU: Intel Device a788 
      -+sssssssssssssssssyyyssss+-         GPU: NVIDIA 01:00.0 NVIDIA 
Corporation Device 2757 
        `:+ssssssssssssssssss+:`           Memory: 2943MiB / 64004MiB 

user@lenovo-Legion-9-16IRX9:~$ xinput list
⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ PixArt Lenovo USB Optical Mouse           id=10   [slave  pointer  (2)]
⎜   ↳ ITE Tech. Inc. ITE Device(8258) Keyboard  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)]
    ↳ AT Translated Set 2 keyboard              id=13   [slave  keyboard (3)]
    ↳ ITE Tech. Inc. ITE Device(8258) Keyboard  id=14   [slave  keyboard (3)]
∼ ITE Tech. Inc. ITE Device(8258) Wireless Radio Control        id=12   
[floating slave]


user@lenovo-Legion-9-16IRX9:~$ sudo acpidump | grep -C3 -i elan
   79490: 50 44 53 0A 02 70 0C 40 42 0F 00 53 50 45 44 A4  pds....@b..sped.
   794A0: 00 08 5F 48 49 44 0D 58 58 58 58 30 30 30 30 00  .._HID.XXXX0000.
   794B0: 08 5F 53 55 42 0D 58 58 58 58 30 30 30 30 00 A0  ._SUB.XXXX0000..
   794C0: 25 93 54 50 54 59 01 70 0D 45 4C 41 4E 30 36 46  %.TPTY.p.ELAN06F
   794D0: 41 00 5F 48 49 44 70 0D 45 4C 41 4E 30 30 30 31  A._HIDp.ELAN0001
   794E0: 00 5F 53 55 42 A1 28 A0 26 93 54 50 54 59 0A 02  ._SUB.(.&.TPTY..
   794F0: 70 0D 53 59 4E 41 32 42 41 36 00 5F 48 49 44 70  p.SYNA2BA6._HIDp
   79500: 0D 53 59 4E 41 30 30 30 31 00 5F 53 55 42 08 5F  .SYNA0001._SUB._

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-6.8.0-40-generic 6.8.0-40.40~22.04.3
ProcVersionSignature: Ubuntu 6.8.0-40.40~22.04.3-generic 6.8.12
Uname: Linux 6.8.0-40-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82.6
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Sep  9 16:37:04 2024
InstallationDate: Installed on 2024-09-09 (0 days ago)
InstallationMedia: Ubuntu 22.04.4 LTS "Jammy Jellyfish" - Release amd64 
(20240220)
SourcePackage: linux-signed-hwe-6.8
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: linux-signed-hwe-6.8 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug jammy

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https://bugs.launchpad.net/bugs/2079985

Title:
  Touchpad is missing

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