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I am using Lenovo-ideapad 330-15ARR. I just install ubuntu 18.04.
My touchpad(elan) is not detected and also under wifi menu in setting, "Wifi adapter not found" message is displayed.

My wifi network adapter is rtl8821ce .

I tried many solutions mentioned in various websites. But all was in vein.

And also I shall provide kernel versions and other outputs of some commands.

    santosh@santosh-Lenovo:~$ uname -r

    4.19.1-041901-lowlatency

My output for "xinput":

    santosh@santosh-Lenovo:~$ xinput

    ⎡ Virtual core pointer                      id=2    [master pointer  (3)]

    ⎜   ↳ Virtual core XTEST pointer                id=4    [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)]

        ↳ EasyCamera: EasyCamera                    id=11   [slave  keyboard (3)]

        ↳ Ideapad extra buttons                     id=12   [slave  keyboard (3)]

        ↳ AT Translated Set 2 keyboard              id=13   [slave  keyboard (3)]

My output for "less /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=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=0006 Version=0000

    N: Name="Video Bus"

    P: Phys=LNXVIDEO/video/input0

    S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:03/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=0006 Version=0000

    N: Name="Video Bus"

    P: Phys=LNXVIDEO/video/input0

    S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:0b/LNXVIDEO:02/input/input5

    U: Uniq=

    H: Handlers=kbd event5 

    B: PROP=0

    B: EV=3

    B: KEY=3e000b00000000 0 0 0



    I: Bus=0019 Vendor=0000 Product=0000 Version=0000

    N: Name="Ideapad extra buttons"

    P: Phys=ideapad/input0

    S: Sysfs=/devices/pci0000:00/0000:00:14.3/PNP0C09:00/VPC2004:00/input/input7

    U: Uniq=

    H: Handlers=rfkill kbd event7 

    B: PROP=0

    B: EV=13

    B: KEY=81000800100c03 4400000000300000 0 2

    B: MSC=10



    I: Bus=0000 Vendor=0000 Product=0000 Version=0000

    N: Name="HD-Audio Generic HDMI/DP,pcm=3"

    P: Phys=ALSA

    S: Sysfs=/devices/pci0000:00/0000:00:08.1/0000:03:00.1/sound/card0/input8

    U: Uniq=

    H: Handlers=event8 

    B: PROP=0

    B: EV=21

    B: SW=140



    I: Bus=0000 Vendor=0000 Product=0000 Version=0000

    N: Name="HD-Audio Generic Mic"

    P: Phys=ALSA

    S: Sysfs=/devices/pci0000:00/0000:00:08.1/0000:03:00.6/sound/card1/input9

    U: Uniq=

    H: Handlers=event9 

    B: PROP=0

    B: EV=21

    B: SW=10



    I: Bus=0000 Vendor=0000 Product=0000 Version=0000

    N: Name="HD-Audio Generic Headphone"

    P: Phys=ALSA

    S: Sysfs=/devices/pci0000:00/0000:00:08.1/0000:03:00.6/sound/card1/input10

    U: Uniq=

    H: Handlers=event10 

    B: PROP=0

    B: EV=21

    B: SW=4



    I: Bus=0003 Vendor=5986 Product=1127 Version=5307

    N: Name="EasyCamera: EasyCamera"    

    P: Phys=usb-0000:03:00.4-1/button

    S: Sysfs=/devices/pci0000:00/0000:00:08.1/0000:03:00.4/usb3/3-1/3-1:1.0/input/input11

    U: Uniq=

    H: Handlers=kbd event11 

    B: PROP=0

    B: EV=3

    B: KEY=100000 0 0 0



    I: Bus=0003 Vendor=1c4f Product=0003 Version=0110

    N: Name="SIGMACHIP Usb Mouse"

    P: Phys=usb-0000:03:00.3-4/input0

    S: Sysfs=/devices/pci0000:00/0000:00:08.1/0000:03:00.3/usb1/1-4/1-4:1.0/0003:1C4F:0003.0002/input/input12

    U: Uniq=

    H: Handlers=mouse0 event6 

    B: PROP=0

    B: EV=17

    B: KEY=70000 0 0 0 0

    B: REL=103

    B: MSC=10

The output for "lspci" is

santosh@santosh-Lenovo:~$ lspci

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15d0

00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Device 15d1

00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge

00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15d3

00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15d3

00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge

00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15db

00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15dc

00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)

00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)

00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15e8

00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15e9

00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ea

00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15eb

00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ec

00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ed

00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ee

00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ef

01:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)

03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Vega [Radeon Vega 8 Mobile] (rev c4)

03:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device 15de

03:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Device 15df

03:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15e0

03:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15e1

03:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Device 15e3

04:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 61)

please help me out with this problem.

I am also eager to know how to extract .inf file from .exe file , to install windows driver using ndiswrapper.