No touchpad detected on 'HP ZBook Firefly G8 (1G3U1AV)' after fresh install

[Hajo Erwich]

Ubuntu 18.04.5 LTS
The touchpad is not detected with or without the Logitech M705 mouse plugged in.

cat /proc/bus/input/devices

Outputs:

I: Bus=0019 Vendor=0000 Product=0003 Version=0000
N: Name="Sleep Button"
P: Phys=PNP0C0E/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input0
U: Uniq=
H: Handlers=kbd event0
B: PROP=0
B: EV=3
B: KEY=4000 0 0

I: Bus=0019 Vendor=0000 Product=0005 Version=0000
N: Name="Lid Switch"
P: Phys=PNP0C0D/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input1
U: Uniq=
H: Handlers=event1
B: PROP=0
B: EV=21
B: SW=1

I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=PNP0C0C/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input2
U: Uniq=
H: Handlers=kbd event2
B: PROP=0
B: EV=3
B: KEY=10000000000000 0

I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=LNXPWRBN/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input3
U: Uniq=
H: Handlers=kbd event3
B: PROP=0
B: EV=3
B: KEY=10000000000000 0

I: Bus=0011 Vendor=0001 Product=0001 Version=ab41
N: Name="AT Translated Set 2 keyboard"
P: Phys=isa0060/serio0/input0
S: Sysfs=/devices/platform/i8042/serio0/input/input4
U: Uniq=
H: Handlers=sysrq kbd event4 leds
B: PROP=0
B: EV=120013
B: KEY=20 0 0 1500f02100000 43803078f900d401 feffffdfffefffff fffffffffffffffe
B: MSC=10
B: LED=7

I: Bus=0003 Vendor=046d Product=101b Version=0111
N: Name="Logitech M705"
P: Phys=usb-0000:00:14.0-4/input2:1
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4:1.2/0003:046D:C52B.0004/0003:046D:101B.0005/input/input14
U: Uniq=101b-fc-92-33-df
H: Handlers=mouse0 event5
B: PROP=0
B: EV=17
B: KEY=ffff0000 0 0 0 0
B: REL=1943
B: MSC=10

I: Bus=0019 Vendor=0000 Product=0000 Version=0000
N: Name="HP Wireless hotkeys"
P: Phys=hpq6001/input0
S: Sysfs=/devices/virtual/input/input15
U: Uniq=
H: Handlers=rfkill kbd event6
B: PROP=0
B: EV=3
B: KEY=80000000000000 0 0 0

I: Bus=0019 Vendor=0000 Product=0000 Version=0000
N: Name="Intel HID events"
P: Phys=
S: Sysfs=/devices/platform/INT33D5:00/input/input16
U: Uniq=
H: Handlers=rfkill kbd event7
B: PROP=0
B: EV=13
B: KEY=81000300000000 5000004000 1e294000000020 0
B: MSC=10

I: Bus=0019 Vendor=0000 Product=0000 Version=0000
N: Name="Intel HID 5 button array"
P: Phys=
S: Sysfs=/devices/platform/INT33D5:00/input/input17
U: Uniq=
H: Handlers=kbd event8
B: PROP=0
B: EV=13
B: KEY=2000000000000 0 0 0 0 1000000000000 0 201c000000000000 0
B: MSC=10

I: Bus=0019 Vendor=0000 Product=0000 Version=0000
N: Name="HP WMI hotkeys"
P: Phys=wmi/input0
S: Sysfs=/devices/virtual/input/input18
U: Uniq=
H: Handlers=kbd event9
B: PROP=0
B: EV=33
B: KEY=4000000000 0 1000700000000 2102400 0 0
B: MSC=10
B: SW=0

I: Bus=0003 Vendor=04f2 Product=b6bf Version=0013
N: Name="HP HD Camera: HP HD Camera"
P: Phys=usb-0000:00:14.0-2/button
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/input/input19
U: Uniq=
H: Handlers=kbd event10
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0

I: Bus=0003 Vendor=04f2 Product=b6bf Version=0013
N: Name="HP HD Camera: HP IR Camera"
P: Phys=usb-0000:00:14.0-2/button
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.2/input/input20
U: Uniq=
H: Handlers=kbd event11
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-5.4.0-81-generic 5.4.0-81.91~18.04.1
ProcVersionSignature: Ubuntu 5.4.0-81.91~18.04.1-generic 5.4.128
Uname: Linux 5.4.0-81-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.24
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Sep 6 11:37:52 2021
InstallationDate: Installed on 2021-09-06 (0 days ago)
InstallationMedia: Ubuntu 18.04.5 LTS "Bionic Beaver" - Release amd64 (20200806.1)
SourcePackage: linux-signed-hwe-5.4
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Albert Seligmann (aseligmann)]

I am experiencing the same issue.

@herwich
Have you found a workaround for getting the touchpad to function?

[Hajo Erwich (herwich)]

@aseligmann
Installing Ubuntu 20.04 LTS does solve the trackpad issue together with the GPU driver and audio. Unfortunately for compatibility reasons I have to use 18.04 so I guess I'm stuck with a mouse for now.

[Albert Seligmann (aseligmann)]

@herwich
I am in the same situation as you, since I also need to be on 18.04 for now.

I am having trouble with the display driver as well. My model is equipped with an NVIDIA T500 (same as yours), but installing any NVIDIA display driver higher than version 390 fails and drops be in tty mode.
Have you had success with using display drivers other than nomodeset?

[Hajo Erwich (herwich)]

@aseligmann

Unfortunately I got no GPU driver working other than using nomodeset. First I tried all different versions offered by the software and updates 'additional drivers' tab. And I tried a selection of older drivers from the NVIDIA PPA, I think I did not even get 390 to work. Each time I had to purge the driver in tty to get back on the system.
Did you get the audio working by any chance? I tried different fixes, for example:
https://www.linuxuprising.com/2018/06/fix-no-sound-dummy-output-issue-in.html
But it still only gives dummy output.

[Albert Seligmann (aseligmann)]

@herwich
I haven't had any success with audio either, I even tried SOF drivers.

Everything looks to be working on 20.04, so perhaps it is possible to backport some changes or identify driver changes between 18.04 and 20.04.
However, I don't think I'll spend much more time on this.

[Hajo Erwich (herwich)]

@aseligmann
Backporting sounds like too much effort for now indeed. At least it is good to know that I'm not the only one experiencing these issues.