Trackpad is not detected for Dell Precision 5550

[Fabio Tudone]

It doesn't appear in /proc/bus/input/devices:

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/input0
U: Uniq=
H: Handlers=event0
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/input1
U: Uniq=
H: Handlers=kbd event1
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/input2
U: Uniq=
H: Handlers=sysrq kbd event2 leds
B: PROP=0
B: EV=120013
B: KEY=1100f02902000 8380307cf910f001 feffffdfffefffff fffffffffffffffe
B: MSC=10
B: LED=7

I: Bus=0019 Vendor=0000 Product=0006 Version=0000
N: Name="Video Bus"
P: Phys=LNXVIDEO/video/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:00/LNXVIDEO:00/input/input3
U: Uniq=
H: Handlers=kbd event3
B: PROP=0
B: EV=3
B: KEY=3e000b00000000 0 0 0

I: Bus=0019 Vendor=0000 Product=0006 Version=0000
N: Name="Video Bus"
P: Phys=LNXVIDEO/video/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:01/input/input4
U: Uniq=
H: Handlers=kbd event4
B: PROP=0
B: EV=3
B: KEY=3e000b00000000 0 0 0

I: Bus=0019 Vendor=0000 Product=0000 Version=0000
N: Name="Dell WMI hotkeys"
P: Phys=
S: Sysfs=/devices/platform/PNP0C14:03/wmi_bus/wmi_bus-PNP0C14:03/9DBB5994-A997-11DA-B012-B622A1EF5492/input/input10
U: Uniq=
H: Handlers=rfkill kbd event10
B: PROP=0
B: EV=13
B: KEY=800000000000 0 0 1500b00000c00 4000000200300000 e000000000000 0
B: MSC=10

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH Headphone Mic"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1f.3/sound/card0/input11
U: Uniq=
H: Handlers=event11
B: PROP=0
B: EV=21
B: SW=4

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH HDMI/DP,pcm=3"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1f.3/sound/card0/input12
U: Uniq=
H: Handlers=event12
B: PROP=0
B: EV=21
B: SW=140

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH HDMI/DP,pcm=7"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1f.3/sound/card0/input13
U: Uniq=
H: Handlers=event13
B: PROP=0
B: EV=21
B: SW=140

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH HDMI/DP,pcm=8"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1f.3/sound/card0/input14
U: Uniq=
H: Handlers=event14
B: PROP=0
B: EV=21
B: SW=140

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH HDMI/DP,pcm=9"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1f.3/sound/card0/input15
U: Uniq=
H: Handlers=event15
B: PROP=0
B: EV=21
B: SW=140

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH HDMI/DP,pcm=10"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1f.3/sound/card0/input16
U: Uniq=
H: Handlers=event16
B: PROP=0
B: EV=21
B: SW=140

I: Bus=0003 Vendor=0bda Product=5510 Version=9179
N: Name="Integrated_Webcam_HD: Integrate"
P: Phys=usb-0000:00:14.0-11/button
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-11/1-11:1.0/input/input17
U: Uniq=
H: Handlers=kbd event17
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0

I: Bus=0003 Vendor=0bda Product=5510 Version=9179
N: Name="Integrated_Webcam_HD: Integrate"
P: Phys=usb-0000:00:14.0-11/button
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-11/1-11:1.2/input/input18
U: Uniq=
H: Handlers=kbd event18
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0

I: Bus=0003 Vendor=0203 Product=145f Version=0100
N: Name="AUKEY PC-LM1 USB Camera: AUKEY "
P: Phys=usb-0000:00:14.0-4.1.1/button
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.1/1-4.1.1/1-4.1.1:1.0/input/input26
U: Uniq=
H: Handlers=kbd event5
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0

I: Bus=0003 Vendor=1532 Product=0020 Version=0111
N: Name="Razer Razer Abyssus 1800"
P: Phys=usb-0000:00:14.0-4.1.2/input0
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.1/1-4.1.2/1-4.1.2:1.0/0003:1532:0020.000A/input/input27
U: Uniq=
H: Handlers=mouse0 event6
B: PROP=0
B: EV=17
B: KEY=70000 0 0 0 0
B: REL=903
B: MSC=10

I: Bus=0003 Vendor=1532 Product=0020 Version=0111
N: Name="Razer Razer Abyssus 1800"
P: Phys=usb-0000:00:14.0-4.1.2/input1
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.1/1-4.1.2/1-4.1.2:1.1/0003:1532:0020.000B/input/input28
U: Uniq=
H: Handlers=sysrq kbd event7
B: PROP=0
B: EV=100013
B: KEY=1000000000007 ff9f207ac14057ff febeffdfffefffff fffffffffffffffe
B: MSC=10

I: Bus=0003 Vendor=1b1c Product=1b20 Version=0111
N: Name="Corsair Corsair STRAFE RGB Gaming Keyboard"
P: Phys=usb-0000:00:14.0-4.1.3/input0
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.1/1-4.1.3/1-4.1.3:1.0/0003:1B1C:1B20.000C/input/input29
U: Uniq=16013037AF0CA4A7592515EAF5001941
H: Handlers=sysrq kbd event8 leds
B: PROP=0
B: EV=12001f
B: KEY=3f000303ff 0 0 483ffff17aff32d bfd4444600000000 1 130ff38b17c007 ffe77bfad9415fff ffbeffdfffefffff fffffffffffffffe
B: REL=1040
B: ABS=100000000
B: MSC=10
B: LED=7

I: Bus=0003 Vendor=1b1c Product=1b20 Version=0111
N: Name="Corsair Corsair STRAFE RGB Gaming Keyboard"
P: Phys=usb-0000:00:14.0-4.1.3/input0
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.1/1-4.1.3/1-4.1.3:1.0/0003:1B1C:1B20.000C/input/input30
U: Uniq=16013037AF0CA4A7592515EAF5001941
H: Handlers=event9
B: PROP=0
B: EV=9
B: ABS=10000000000

I: Bus=0003 Vendor=1b1c Product=1b20 Version=0111
N: Name="Corsair Corsair STRAFE RGB Gaming Keyboard"
P: Phys=usb-0000:00:14.0-4.1.3/input0
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.1/1-4.1.3/1-4.1.3:1.0/0003:1B1C:1B20.000C/input/input31
U: Uniq=16013037AF0CA4A7592515EAF5001941
H: Handlers=event19
B: PROP=0
B: EV=9
B: ABS=10000000000

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.13.0-27-generic 5.13.0-27.29~20.04.1
ProcVersionSignature: Ubuntu 5.13.0-27.29~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-27-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Jan 21 09:03:51 2022
InstallationDate: Installed on 2021-08-31 (142 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
SourcePackage: linux-signed-hwe-5.13
UpgradeStatus: No upgrade log present (probably fresh install)

[Fabio Tudone (circlespainter)]

Also, it correctly works with a live Pop!_OS installation USB; `uname -a` there yields:

Linux pop-os 5.13.0-7614-generic #14~1631647151~21.04~930e87c-Ubuntu SMP Fri Sep 17 00:24:58 UTC x86_64 x86_64 x86_64 GNU/Linux