[Lenovo Yoga 3 Pro] Touchpad doesn't work

Hi everyone.
I installed Ubuntu in my Notebook 5 days ago, and the touchpad was working just fine in the first 2 days. However it stopped working and hasn't worked again anymore.

I have the Ubuntu 21.04 installed and nothing seems to work. I have already executed the commands to install Synpatics driver, but nothing has changed.

Here is the output of cat /proc/bus/input/devices.
I can't find any touchpads in this list, what does it mean? Is there a way to fix this?

I'm about to give up of this laptop and throw it away, please help!

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

I: Bus=0011 Vendor=0001 Product=0001 Version=ab83
N: Name="AT Translated Set 2 keyboard"
P: Phys=isa0060/serio0/input0
S: Sysfs=/devices/platform/i8042/serio0/input/input3
U: Uniq=
H: Handlers=sysrq kbd event3 leds
B: PROP=0
B: EV=120013
B: KEY=402000000 3803078f800d001 feffffdfffefffff fffffffffffffffe
B: MSC=10
B: LED=7

I: Bus=0019 Vendor=0000 Product=0000 Version=0000
N: Name="Ideapad extra buttons"
P: Phys=ideapad/input0
S: Sysfs=/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/VPC2004:00/input/input6
U: Uniq=
H: Handlers=rfkill kbd event5
B: PROP=0
B: EV=13
B: KEY=81000800100c03 4400000000300000 0 2
B: MSC=10

I: Bus=0018 Vendor=03eb Product=8a10 Version=0100
N: Name="ATML1000:00 03EB:8A10"
P: Phys=i2c-ATML1000:00
S: Sysfs=/devices/pci0000:00/INT3433:00/i2c-1/i2c-ATML1000:00/0018:03EB:8A10.0001/input/input8
U: Uniq=
H: Handlers=mouse0 event4
B: PROP=2
B: EV=1b
B: KEY=400 0 0 0 0 0
B: ABS=260800000000003
B: MSC=20

I: Bus=0003 Vendor=5986 Product=0535 Version=3653
N: Name="Lenovo EasyCamera: Lenovo EasyC"
P: Phys=usb-0000:00:14.0-7/button
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/input/input9
U: Uniq=
H: Handlers=kbd event6
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH Mic"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card1/input10
U: Uniq=
H: Handlers=event7
B: PROP=0
B: EV=21
B: SW=10

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH Headphone"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card1/input11
U: Uniq=
H: Handlers=event8
B: PROP=0
B: EV=21
B: SW=4

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:00/input/input12
U: Uniq=
H: Handlers=kbd event9
B: PROP=0
B: EV=3
B: KEY=3e000b00000000 0 0 0

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel HDMI HDMI/DP,pcm=3"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:03.0/sound/card0/input13
U: Uniq=
H: Handlers=event10
B: PROP=0
B: EV=21
B: SW=140

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel HDMI HDMI/DP,pcm=7"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:03.0/sound/card0/input14
U: Uniq=
H: Handlers=event11
B: PROP=0
B: EV=21
B: SW=140

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel HDMI HDMI/DP,pcm=8"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:03.0/sound/card0/input15
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 HDMI HDMI/DP,pcm=9"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:03.0/sound/card0/input16
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 HDMI HDMI/DP,pcm=10"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:03.0/sound/card0/input17
U: Uniq=
H: Handlers=event14
B: PROP=0
B: EV=21
B: SW=140

DistroRelease: Ubuntu 21.04
Package: ubuntu-release-upgrader-core 1:21.04.13
ProcVersionSignature: Ubuntu 5.11.0-18.19-generic 5.11.17
Uname: Linux 5.11.0-18-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.11-0ubuntu65.1
Architecture: amd64
CasperMD5CheckResult: pass
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Fri Jun 18 08:09:23 2021
InstallationDate: Installed on 2021-06-18
InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=pt_BR:pt:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: No upgrade log present (probably fresh install)