Ubuntu 20 has no way of using Wayland

Do you mean Ubuntu 20.04 or 20.10? There is no "Ubuntu 20". It doesn't exist

It's 20.04

I did a fresh install (minimal desktop install) just like I did before for ubuntu 19.something, which presented me the Wayland/Non Wayland gear icon on login screen.

This one simply does not.

I also tried installing gnome-wayland (something like that) which was indeed missing. The gear icon appeared but now I can only pick between "Ubuntu" and "Ubuntu on XOrg", there's no Wayland. "Ubuntu" is also not wayland because echo $XDG_SESSION_TYPE gives x11

"Ubuntu 19" did and does not exist either. Are you talking about Ubutnu 19.04 or Ubuntu 19.10?
Please see https://ubuntu.com/about/release-cycle for the release numbering standards in Ubuntu.

Do you see a cog wheel during login on the bottom right corner as shown on https://linuxconfig.org/how-to-enable-disable-wayland-on-ubuntu-20-04-desktop ?

It was Ubuntu 19.10

No, I did not see this. This is what I call the gear icon. On Ubuntu 19.10 I've seen it, simply clicked, switched to Wayland and my GPU worked, no back screens/no signals when on Wayland.

On Ubuntu 20.04, however, it wont appear. When I installes gnome-session-wayland it appears but as I said, it only let me choose between Ubuntu and Ubuntu on XOrg, the first one (Ubuntu) not being Wayland but x11 when I do echo $XDG_SESSION_TYPE

Did you edit the file as explained in the link?

Yes, I tried commenting, uncommenting, and even letting WaylandEnable=true. In each of these tries, I restarted the gdm and also rebooted, but the icon wont appear. I even tried another kernel.

What is the output of the command

dpkg -l | grep wayland

lz@lz:~$ dpkg -l | grep wayland
ii gnome-session-wayland 3.36.0-2ubuntu1 all GNOME Session Manager - GNOME 3 session (transitional package)
ii libwayland-client0:amd64 1.18.0-1 amd64 wayland compositor infrastructure - client library
ii libwayland-cursor0:amd64 1.18.0-1 amd64 wayland compositor infrastructure - cursor library
ii libwayland-egl1:amd64 1.18.0-1 amd64 wayland compositor infrastructure - EGL library
ii libwayland-server0:amd64 1.18.0-1 amd64 wayland compositor infrastructure - server library
ii xwayland 2:1.20.8-2ubuntu2.1 amd64 Xwayland X server

You should see the cog wheel when logging in - after clicking on your username, before entering the password.
Do you see it?
Which options do you see?

I don't see it. Tried multiple times but it wont show.
Then I tried editing /etc/gdm3/custom.conf as said here https://linuxconfig.org/how-to-enable-disable-wayland-on-ubuntu-20-04-desktop but it also wont make it appear

I also tried installing gnome-session-wayland. This makes the "Ubuntu on XOrg" appear on the cog, along with "Ubuntu", but no Wayland option appears. When I log into "Ubuntu", echo $XDG_SESSION_TYPE still says x11.

On Ubuntu 19.10 the cog simply appeared right on the first boot after installation

gnome-session-wayland cannot to anything, because it is just a transitional package having dependencies but no contents on its own.

I am sorry, but I do not have any idea what there is wrong on your system.
On my system it is exactly as shown on https://linuxconfig.org/images/01-how-to-enable-disable-wayland-on-ubuntu-20-04-desktop.png

proprietary nvidia driver?

https://gitlab.gnome.org/GNOME/gdm/commit/5cd78602d3d4c8355869151875fc317e8bcd5f08

Hi Kai. No, the reason im struggling with this is that I dont want to use proprietary drivers, so they're disabled.

On Ubuntu 19.10 Wayland worked simply by switching on the login gear icon (no proprietary drivers also). On Ubuntu 20 I can't do it.

What is the output of:

lspci

Thanks

lz@lz:~$ lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) I/O Memory Management Unit
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe GPP Bridge
00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe GPP Bridge
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe GPP Bridge
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:07.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0 to Bus B
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0 to Bus B
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 59)
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] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 7
01:00.0 Non-Volatile memory controller: Kingston Technology Company, Inc. Device 2263 (rev 03)
02:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset USB 3.1 XHCI Controller (rev 01)
02:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset SATA Controller (rev 01)
02:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Bridge (rev 01)
03:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
03:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
03:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 16)
05:00.0 Network controller: Broadcom Inc. and subsidiaries BCM4360 802.11ac Wireless Network Adapter (rev 03)
06:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 730] (rev a1)
06:00.1 Audio device: NVIDIA Corporation GF108 High Definition Audio Controller (rev a1)
07:00.0 VGA compatible controller: NVIDIA Corporation TU116 [GeForce GTX 1660] (rev a1)
07:00.1 Audio device: NVIDIA Corporation TU116 High Definition Audio Controller (rev a1)
07:00.2 USB controller: NVIDIA Corporation TU116 USB 3.1 Host Controller (rev a1)
07:00.3 Serial bus controller [0c80]: NVIDIA Corporation TU116 [GeForce GTX 1650 SUPER] (rev a1)
08:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Zeppelin/Raven/Raven2 PCIe Dummy Function
08:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Platform Security Processor
08:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Zeppelin USB 3.0 Host controller
09:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Zeppelin/Renoir PCIe Dummy Function
09:00.2 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51)
09:00.3 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) HD Audio Controller

What is the output of the commands

sudo lshw -C display
/lib/udev/rules.d/61-gdm.rules

There's no such command as /lib/udev/rules.d/61-gdm.rules

lz@lz:~$ sudo lshw -C display
[sudo] password for lz:
  *-display UNCLAIMED
       description: VGA compatible controller
       product: GF108 [GeForce GT 730]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:06:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list
       configuration: latency=0
       resources: memory:f4000000-f4ffffff memory:e8000000-efffffff memory:f0000000-f1ffffff ioport:d000(size=128) memory:c0000-dffff
  *-display UNCLAIMED
       description: VGA compatible controller
       product: TU116 [GeForce GTX 1660]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:07:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller cap_list
       configuration: latency=0
       resources: memory:f6000000-f6ffffff memory:d0000000-dfffffff memory:e0000000-e1ffffff ioport:f000(size=128) memory:f7000000-f707ffff

Sorry, the other command should have been

cat /lib/udev/rules.d/61-gdm.rules

Both your NVidia display adapters are listed as "Unclaimed", hence another diagnostic query:
What is the output of the command

xrandr -q

it's important to notice that I'm running all these commands through nomodeset because it boots to a black screen if I dont use it

lz@lz:~$ cat /lib/udev/rules.d/61-gdm.rules
# disable Wayland on Cirrus chipsets
ATTR{vendor}=="0x1013", ATTR{device}=="0x00b8", ATTR{subsystem_vendor}=="0x1af4", ATTR{subsystem_device}=="0x1100", RUN+="/usr/lib/gdm3/gdm-disable-wayland"
# disable Wayland on Hi1710 chipsets
ATTR{vendor}=="0x19e5", ATTR{device}=="0x1711", RUN+="/usr/lib/gdm3/gdm-disable-wayland"
# disable Wayland when using the proprietary nvidia driver
DRIVER=="nvidia", RUN+="/usr/lib/gdm3/gdm-disable-wayland"

lz@lz:~$ xrandr -q
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1024 x 768, current 1024 x 768, maximum 1024 x 768
default connected primary 1024x768+0+0 0mm x 0mm
   1024x768 76.00*

If you do not want the proprietary NVidia driver, have you considered using the open source nouveau driver?

Yes I want to use nouveau. Actually I thought I was already using it. Ain't I?

Your output:

lz@lz:~$ sudo lshw -C display
  *-display UNCLAIMED

My assumption is that the nouveau driver is not (or not correctly) loaded.

How can I see image if nouveau isn't being used? My processor is Ryzen 7 2700X which does not have integrated GPU, so I'm seeing for sure through an NVIDIA GPU.

Do you have any idea about what I can do?

I suggest that you run step 2 of https://help.ubuntu.com/community/GraphicsTroubleshootingProcedure for diagnostic purposes

lz@lz:~$ lspci -nnk | egrep -i '3d|aphics|display|nouveau|nvidia|radeon|trident|vesa|vga'; uname -a; Xorg -version; sudo apt-get update; sudo apt-get install mesa-utils hardinfo fbset nux-tools inxi; inxi -F; sudo fbset -i; apt-cache show xserver-xorg | grep Version; xrandr; fglrxinfo; nvidia-settings -g |head -n 30 ; sudo lshw -short; sudo lshw -C display; dpkg -l | egrep -i 'fgl|intel|mesa|mesa-utils|nvidia|nouveau|radeon|trident|video-ati'; cat /etc/lsb-release; dmesg | egrep -i 'abort|ailed|bug|error|fail|fgl|GLX|GPU|intel|missing|nouveau|NVIDIA|radeon|segment|trident|VESA|VGA|wfb|\(EE\)|\(WW\)'; cat /proc/cpuinfo | grep -I model; cat /var/log/Xorg.0.log | egrep -i 'abort|ailed|bug|display|error|fail|fgl|GLX|GPU|intel|issing|nouveau|nvidia|radeon|segment|trident|VESA|VGA|wfb|\(EE\)|\(WW\)'; sudo dmidecode|egrep 'anufact|roduct|erial|elease'; cat /etc/X11/xorg.conf; /usr/lib/nux/unity_support_test -p; ubuntu-support-status ; sudo lsmod
02:00.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset USB 3.1 XHCI Controller [1022:43d5] (rev 01)
06:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF108 [GeForce GT 730] [10de:0f02] (rev a1)
 Subsystem: NVIDIA Corporation GF108 [GeForce GT 730] [10de:0825]
 Kernel modules: nvidiafb, nouveau
06:00.1 Audio device [0403]: NVIDIA Corporation GF108 High Definition Audio Controller [10de:0bea] (rev a1)
 Subsystem: NVIDIA Corporation GF108 High Definition Audio Controller [10de:0825]
07:00.0 VGA compatible controller [0300]: NVIDIA Corporation TU116 [GeForce GTX 1660] [10de:2184] (rev a1)
 Subsystem: NVIDIA Corporation TU116 [GeForce GTX 1660] [10de:1324]
 Kernel modules: nvidiafb, nouveau
07:00.1 Audio device [0403]: NVIDIA Corporation TU116 High Definition Audio Controller [10de:1aeb] (rev a1)
 Subsystem: NVIDIA Corporation TU116 High Definition Audio Controller [10de:1324]
07:00.2 USB controller [0c03]: NVIDIA Corporation TU116 USB 3.1 Host Controller [10de:1aec] (rev a1)
 Subsystem: NVIDIA Corporation Device [10de:1324]
07:00.3 Serial bus controller [0c80]: NVIDIA Corporation TU116 [GeForce GTX 1650 SUPER] [10de:1aed] (rev a1)
 Subsystem: NVIDIA Corporation TU116 [GeForce GTX 1650 SUPER] [10de:1324]
 Kernel driver in use: nvidia-gpu
 Kernel modules: i2c_nvidia_gpu
Linux lz 5.4.0-37-generic #41-Ubuntu SMP Wed Jun 3 18:57:02 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
/usr/lib/xorg/Xorg.wrap: Only console users are allowed to run the X server
[sudo] password for lz:
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System: Host: lz Kernel: 5.4.0-37-generic x86_64 bits: 64 Desktop: Gnome 3.36.1
           Distro: Ubuntu 20.04 LTS (Focal Fossa)
Machine: Type: Desktop Mobo: Gigabyte model: B450 AORUS M v: x.x
           serial: <superuser/root required> UEFI: American Megatrends v: F41 date: 07/22/2019
CPU: Topology: 8-Core model: AMD Ryzen 7 2700X bits: 64 type: MT MCP L2 cache: 4096 KiB
           Speed: 1888 MHz min/max: 2200/3700 MHz Core speeds (MHz): 1: 1888 2: 1883 3: 2075
           4: 2057 5: 2072 6: 2139 7: 2073 8: 2197 9: 1885 10: 1887 11: 1889 12: 2187 13: 1887
           14: 2204 15: 2187 16: 2191
Graphics: Device-1: NVIDIA GF108 [GeForce GT 730] driver: N/A
           Device-2: NVIDIA TU116 [GeForce GTX 1660] driver: N/A
           Display: x11 server: X.Org 1.20.8 driver: fbdev,nouveau unloaded: modesetting,vesa
           resolution: 1024x768~76Hz
           OpenGL: renderer: llvmpipe (LLVM 9.0.1 128 bits) v: 3.3 Mesa 20.0.4
Audio: Device-1: NVIDIA GF108 High Definition Audio driver: snd_hda_intel
           Device-2: NVIDIA TU116 High Definition Audio driver: snd_hda_intel
           Device-3: AMD Family 17h HD Audio driver: snd_hda_intel
           Sound Server: ALSA v: k5.4.0-37-generic
Network: Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet driver: r8169
           IF: eno1 state: up speed: 1000 Mbps duplex: full mac: b4:2e:99:94:fc:76
           Device-2: Broadcom and subsidiaries BCM4360 802.11ac Wireless Network Adapter
           driver: bcma-pci-bridge
Drives: Local Storage: total: 465.76 GiB used: 8.01 GiB (1.7%)
           ID-1: /dev/nvme0n1 vendor: Kingston model: SA2000M8500G size: 465.76 GiB
Partition: ID-1: / size: 456.96 GiB used: 8.00 GiB (1.8%) fs: ext4 dev: /dev/nvme0n1p2
Sensors: System Temperatures: cpu: 40.6 C mobo: N/A
           Fan Speeds (RPM): N/A
Info: Processes: 402 Uptime: 2m Memory: 31.37 GiB used: 1.58 GiB (5.0%) Shell: bash
           inxi: 3.0.38

mode "1024x768-76"
    # D: 78.653 MHz, H: 59.949 kHz, V: 75.694 Hz
    geometry 1024 768 1024 768 32
    timings 12714 128 32 16 4 128 4
    rgba 8/16,8/8,8/0,8/24
endmode

Frame buffer device information:
    Name : EFI VGA
    Address : 0xf1000000
    Size : 3145728
    Type : PACKED PIXELS
    Visual : TRUECOLOR
    XPanStep : 0
    YPanStep : 0
    YWrapStep : 0
    LineLength : 4096
    Accelerator : No
Version: 1:7.7+19ubuntu14
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1024 x 768, current 1024 x 768, maximum 1024 x 768
default connected primary 1024x768+0+0 0mm x 0mm
   1024x768 76.00*
fglrxinfo: command not found

Command 'nvidia-settings' not found, but can be installed with:

sudo apt install nvidia-settings

H/W path Device Class Description
========================================================
                              system B450 AORUS M (Default string)
/0 bus B450 AORUS M
/0/0 memory 64KiB BIOS
/0/9 memory 32GiB System Memory
/0/9/0 memory 8GiB DIMM DDR4 Synchronous Unbuffered (Unregistered) 2
/0/9/1 memory 8GiB DIMM DDR4 Synchronous Unbuffered (Unregistered) 2
/0/9/2 memory 8GiB DIMM DDR4 Synchronous Unbuffered (Unregistered) 2
/0/9/3 memory 8GiB DIMM DDR4 Synchronous Unbuffered (Unregistered) 2
/0/b memory 768KiB L1 cache
/0/c memory 4MiB L2 cache
/0/d memory 16MiB L3 cache
/0/e processor AMD Ryzen 7 2700X Eight-Core Processor
/0/100 bridge Family 17h (Models 00h-0fh) Root Complex
/0/100/0.2 generic Family 17h (Models 00h-0fh) I/O Memory Management Unit
/0/100/1.1 bridge Family 17h (Models 00h-0fh) PCIe GPP Bridge
/0/100/1.1/0 storage Kingston Technology Company, Inc.
/0/100/1.3 bridge Family 17h (Models 00h-0fh) PCIe GPP Bridge
/0/100/1.3/0 bus 400 Series Chipset USB 3.1 XHCI Controller
/0/100/1.3/0/0 usb1 bus xHCI Host Controller
/0/100/1.3/0/1 usb2 bus xHCI Host Controller
/0/100/1.3/0.1 storage 400 Series Chipset SATA Controller
/0/100/1.3/0.2 bridge 400 Series Chipset PCIe Bridge
/0/100/1.3/0.2/0 bridge 400 Series Chipset PCIe Port
/0/100/1.3/0.2/0/0 eno1 network RTL8111/8168/8411 PCI Express Gigabit Ethernet Control
/0/100/1.3/0.2/1 bridge 400 Series Chipset PCIe Port
/0/100/1.3/0.2/1/0 network BCM4360 802.11ac Wireless Network Adapter
/0/100/1.3/0.2/4 bridge 400 Series Chipset PCIe Port
/0/100/1.3/0.2/4/0 display GF108 [GeForce GT 730]
/0/100/1.3/0.2/4/0.1 multimedia GF108 High Definition Audio Controller
/0/100/3.1 bridge Family 17h (Models 00h-0fh) PCIe GPP Bridge
/0/100/3.1/0 display TU116 [GeForce GTX 1660]
/0/100/3.1/0.1 multimedia TU116 High Definition Audio Controller
/0/100/3.1/0.2 bus TU116 USB 3.1 Host Controller
/0/100/3.1/0.2/0 usb3 bus xHCI Host Controller
/0/100/3.1/0.2/1 usb4 bus xHCI Host Controller
/0/100/3.1/0.3 bus TU116 [GeForce GTX 1650 SUPER]
/0/100/7.1 bridge Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0
/0/100/7.1/0 generic Zeppelin/Raven/Raven2 PCIe Dummy Function
/0/100/7.1/0.2 generic Family 17h (Models 00h-0fh) Platform Security Processo
/0/100/7.1/0.3 bus Zeppelin USB 3.0 Host controller
/0/100/7.1/0.3/0 usb5 bus xHCI Host Controller
/0/100/7.1/0.3/0/1 input USB Keyboard
/0/100/7.1/0.3/0/3 communication Bluetooth Dongle (HCI mode)
/0/100/7.1/0.3/0/4 input Usb Mouse
/0/100/7.1/0.3/1 usb6 bus xHCI Host Controller
/0/100/8.1 bridge Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0
/0/100/8.1/0 generic Zeppelin/Renoir PCIe Dummy Function
/0/100/8.1/0.2 storage FCH SATA Controller [AHCI mode]
/0/100/8.1/0.3 multimedia Family 17h (Models 00h-0fh) HD Audio Controller
/0/100/14 bus FCH SMBus Controller
/0/100/14.3 bridge FCH LPC Bridge
/0/101 bridge Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
/0/102 bridge Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
/0/103 bridge Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
/0/104 bridge Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
/0/105 bridge Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
/0/106 bridge Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
/0/107 bridge Family 17h (Models 00h-0fh) Data Fabric: Device 18h; F
/0/108 bridge Family 17h (Models 00h-0fh) Data Fabric: Device 18h; F
/0/109 bridge Family 17h (Models 00h-0fh) Data Fabric: Device 18h; F
/0/10a bridge Family 17h (Models 00h-0fh) Data Fabric: Device 18h; F
/0/10b bridge Family 17h (Models 00h-0fh) Data Fabric: Device 18h; F
/0/10c bridge Family 17h (Models 00h-0fh) Data Fabric: Device 18h; F
/0/10d bridge Family 17h (Models 00h-0fh) Data Fabric: Device 18h; F
/0/10e bridge Family 17h (Models 00h-0fh) Data Fabric: Device 18h; F
/0/1 system PnP device PNP0c01
/0/2 system PnP device PNP0b00
/0/3 system PnP device PNP0c02
/0/4 printer PnP device PNP0400
/0/5 communication PnP device PNP0501
/0/6 system PnP device PNP0c02
  *-display UNCLAIMED
       description: VGA compatible controller
       product: GF108 [GeForce GT 730]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:06:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list
       configuration: latency=0
       resources: memory:f4000000-f4ffffff memory:e8000000-efffffff memory:f0000000-f1ffffff ioport:d000(size=128) memory:c0000-dffff
  *-display UNCLAIMED
       description: VGA compatible controller
       product: TU116 [GeForce GTX 1660]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:07:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller cap_list
       configuration: latency=0
       resources: memory:f6000000-f6ffffff memory:d0000000-dfffffff memory:e0000000-e1ffffff ioport:f000(size=128) memory:f7000000-f707ffff
ii gir1.2-ibus-1.0:amd64 1.5.22-2ubuntu2 amd64 Intelligent Input Bus - introspection data
ii ibus 1.5.22-2ubuntu2 amd64 Intelligent Input Bus - core
ii ibus-data 1.5.22-2ubuntu2 all Intelligent Input Bus - data files
ii ibus-gtk:amd64 1.5.22-2ubuntu2 amd64 Intelligent Input Bus - GTK2 support
ii ibus-gtk3:amd64 1.5.22-2ubuntu2 amd64 Intelligent Input Bus - GTK3 support
ii intel-microcode 3.20200609.0ubuntu0.20.04.2 amd64 Processor microcode firmware for Intel CPUs
ii iucode-tool 2.3.1-1 amd64 Intel processor microcode tool
ii libdrm-intel1:amd64 2.4.101-2 amd64 Userspace interface to intel-specific kernel DRM services -- runtime
ii libdrm-nouveau2:amd64 2.4.101-2 amd64 Userspace interface to nouveau-specific kernel DRM services -- runtime
ii libdrm-radeon1:amd64 2.4.101-2 amd64 Userspace interface to radeon-specific kernel DRM services -- runtime
ii libegl-mesa0:amd64 20.0.4-2ubuntu1 amd64 free implementation of the EGL API -- Mesa vendor library
ii libgl1-mesa-dri:amd64 20.0.4-2ubuntu1 amd64 free implementation of the OpenGL API -- DRI modules
ii libglapi-mesa:amd64 20.0.4-2ubuntu1 amd64 free implementation of the GL API -- shared library
ii libglu1-mesa:amd64 9.0.1-1build1 amd64 Mesa OpenGL utility library (GLU)
ii libglx-mesa0:amd64 20.0.4-2ubuntu1 amd64 free implementation of the OpenGL API -- GLX vendor library
ii libibus-1.0-5:amd64 1.5.22-2ubuntu2 amd64 Intelligent Input Bus - shared library
ii mesa-utils 8.4.0-1build1 amd64 Miscellaneous Mesa GL utilities
ii mesa-vulkan-drivers:amd64 20.0.4-2ubuntu1 amd64 Mesa Vulkan graphics drivers
ii python3-ibus-1.0 1.5.22-2ubuntu2 all Intelligent Input Bus - introspection overrides for Python (Python 3)
ii xserver-xorg-video-ati 1:19.1.0-1 amd64 X.Org X server -- AMD/ATI display driver wrapper
ii xserver-xorg-video-intel 2:2.99.917+git20200226-1 amd64 X.Org X server -- Intel i8xx, i9xx display driver
ii xserver-xorg-video-nouveau 1:1.0.16-1 amd64 X.Org X server -- Nouveau display driver
ii xserver-xorg-video-radeon 1:19.1.0-1 amd64 X.Org X server -- AMD/ATI Radeon display driver
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Ubuntu 20.04 LTS"
[ 0.000000] Intel GenuineIntel
[ 0.000000] tsc: Fast TSC calibration failed
[ 0.000000] You have booted with nomodeset. This means your GPU drivers are DISABLED
[ 0.172982] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 0.180964] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 0.189505] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3]
[ 0.216296] pci 0000:06:00.0: vgaarb: setting as boot VGA device
[ 0.216296] pci 0000:06:00.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none
[ 0.216296] pci 0000:07:00.0: vgaarb: VGA device added: decodes=io+mem,owns=none,locks=none
[ 0.216296] pci 0000:06:00.0: vgaarb: bridge control possible
[ 0.216296] pci 0000:07:00.0: vgaarb: bridge control possible
[ 0.216296] vgaarb: loaded
[ 0.314840] Initramfs unpacking failed: Decoding failed
[ 0.341159] fb0: EFI VGA frame buffer device
[ 0.448070] Segment Routing with IPv6
[ 0.448791] RAS: Correctable Errors collector initialized.
[ 0.546095] nvidia-gpu 0000:07:00.3: enabling device (0000 -> 0002)
[ 0.575854] bcma-pci-bridge 0000:05:00.0: bus0: Using fallback SPROM failed (err -2)
[ 0.661061] nvme nvme0: missing or invalid SUBNQN field.
[ 2.368461] systemd[1]: Mounting Kernel Debug File System...
[ 2.377372] systemd[1]: Mounted Kernel Debug File System.
[ 2.381584] EXT4-fs (nvme0n1p2): re-mounted. Opts: errors=remount-ro
[ 2.678471] b43-phy0 ERROR: FOUND UNSUPPORTED PHY (Analog 12, Type 11 (AC), Revision 1)
[ 2.678479] b43: probe of bcma0:1 failed with error -95
[ 2.689944] snd_hda_intel 0000:06:00.1: Disabling MSI
[ 2.689951] snd_hda_intel 0000:06:00.1: Handle vga_switcheroo audio client
[ 2.690074] snd_hda_intel 0000:07:00.1: enabling device (0000 -> 0002)
[ 2.690141] snd_hda_intel 0000:07:00.1: Disabling MSI
[ 2.690145] snd_hda_intel 0000:07:00.1: Handle vga_switcheroo audio client
[ 2.690229] snd_hda_intel 0000:09:00.3: enabling device (0000 -> 0002)
[ 2.910560] audit: type=1400 audit(1592203078.946:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe" pid=731 comm="apparmor_parser"
[ 2.910563] audit: type=1400 audit(1592203078.946:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe//kmod" pid=731 comm="apparmor_parser"
[ 3.404508] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:03.1/0000:07:00.1/sound/card1/input15
[ 3.404558] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:03.1/0000:07:00.1/sound/card1/input16
[ 3.404600] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:03.1/0000:07:00.1/sound/card1/input17
[ 3.644522] nvidia-gpu 0000:07:00.3: i2c timeout error e0000000
[ 3.644527] ucsi_ccg 0-0008: i2c_transfer failed -110
[ 3.644528] ucsi_ccg 0-0008: ucsi_ccg_init failed - -110
[ 3.644535] ucsi_ccg: probe of 0-0008 failed with error -110
[ 3.940290] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.3/0000:02:00.2/0000:03:04.0/0000:06:00.1/sound/card0/input18
[ 3.940331] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.3/0000:02:00.2/0000:03:04.0/0000:06:00.1/sound/card0/input19
[ 3.940358] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.3/0000:02:00.2/0000:03:04.0/0000:06:00.1/sound/card0/input20
[ 3.940388] input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.3/0000:02:00.2/0000:03:04.0/0000:06:00.1/sound/card0/input21
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
model : 8
model name : AMD Ryzen 7 2700X Eight-Core Processor
 (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 16.944] (==) Automatically adding GPU devices
[ 16.944] (==) Automatically binding GPU devices
[ 16.965] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[ 16.965] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist.
[ 16.965] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.
[ 16.968] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist.
[ 16.968] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist.
[ 16.976] (II) LoadModule: "glx"
[ 16.991] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 17.005] (II) Module glx: vendor="X.Org Foundation"
[ 17.123] (==) Matched nouveau as autoconfigured driver 0
[ 17.123] (==) Matched vesa as autoconfigured driver 3
[ 17.123] (II) LoadModule: "nouveau"
[ 17.124] (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
[ 17.143] (II) Module nouveau: vendor="X.Org Foundation"
[ 17.162] (II) LoadModule: "vesa"
[ 17.162] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[ 17.169] (II) Module vesa: vendor="X.Org Foundation"
[ 17.169] (II) NOUVEAU driver Date: Mon Jan 28 23:25:58 2019 -0500
[ 17.169] (II) NOUVEAU driver for NVIDIA chipset families :
[ 17.170] (II) VESA: driver for VESA chipsets: vesa
[ 17.290] (EE) [drm] Failed to open DRM device for pci:0000:06:00.0: -19
[ 17.290] (EE) open /dev/dri/card0: No such file or directory
[ 17.290] (WW) Falling back to old probe method for modesetting
[ 17.290] (EE) open /dev/dri/card0: No such file or directory
[ 17.295] (EE) Screen 0 deleted because of no matching config section.
[ 17.295] (II) FBDEV(0): Creating default Display subsection in Screen section
[ 17.295] (II) FBDEV(0): hardware: EFI VGA (video memory: 3072kB)
[ 17.312] (II) UnloadModule: "vesa"
[ 17.312] (II) Unloading vesa
[ 17.333] (II) Found 2 VGA devices: arbiter wrapping enabled
[ 17.341] (II) Initializing extension GLX
[ 17.341] (II) AIGLX: Screen 0 is not DRI2 capable
[ 18.029] (II) IGLX: Loaded and initialized swrast
[ 18.029] (II) GLX: Initialized DRISWRAST GL provider for screen 0
[ 18.358] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=3 (/dev/input/event17)
[ 18.358] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=7 (/dev/input/event18)
[ 18.359] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=8 (/dev/input/event19)
[ 18.359] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=9 (/dev/input/event20)
[ 18.359] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=3 (/dev/input/event14)
[ 18.360] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=7 (/dev/input/event15)
[ 18.360] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=8 (/dev/input/event16)
 Release Date: 07/22/2019
  Serial services are supported (int 14h)
 Manufacturer: Gigabyte Technology Co., Ltd.
 Product Name: B450 AORUS M
 Serial Number: Default string
 Manufacturer: Gigabyte Technology Co., Ltd.
 Product Name: B450 AORUS M
 Serial Number: Default string
 Manufacturer: Default string
 Serial Number: Default string
 Manufacturer: Advanced Micro Devices, Inc.
 Serial Number: Unknown
 Manufacturer: Kingston
 Serial Number: 1007AC67
 Module Manufacturer ID: Unknown
 Module Product ID: Unknown
 Memory Subsystem Controller Manufacturer ID: Unknown
 Memory Subsystem Controller Product ID: Unknown
 Manufacturer: Kingston
 Serial Number: 0B07D067
 Module Manufacturer ID: Unknown
 Module Product ID: Unknown
 Memory Subsystem Controller Manufacturer ID: Unknown
 Memory Subsystem Controller Product ID: Unknown
 Manufacturer: Kingston
 Serial Number: 0F07A767
 Module Manufacturer ID: Unknown
 Module Product ID: Unknown
 Memory Subsystem Controller Manufacturer ID: Unknown
 Memory Subsystem Controller Product ID: Unknown
 Manufacturer: Kingston
 Serial Number: 0F26A439
 Module Manufacturer ID: Unknown
 Module Product ID: Unknown
 Memory Subsystem Controller Manufacturer ID: Unknown
 Memory Subsystem Controller Product ID: Unknown
cat: /etc/X11/xorg.conf: No such file or directory
OpenGL vendor string: VMware, Inc.
OpenGL renderer string: llvmpipe (LLVM 9.0.1, 128 bits)
OpenGL version string: 3.1 Mesa 20.0.4

Not software rendered: no
Not blacklisted: yes
GLX fbconfig: yes
GLX texture from pixmap: yes
GL npot or rect textures: yes
GL vertex program: yes
GL fragment program: yes
GL vertex buffer object: yes
GL framebuffer object: yes
GL version is 1.4+: yes

Unity 3D supported: no
ubuntu-support-status: command not found
Module Size Used by
rfcomm 81920 4
bnep 24576 2
snd_hda_codec_hdmi 61440 5
edac_mce_amd 32768 0
kvm_amd 98304 0
kvm 663552 1 kvm_amd
snd_hda_codec_realtek 118784 1
snd_hda_codec_generic 81920 1 snd_hda_codec_realtek
nls_iso8859_1 16384 1
ledtrig_audio 16384 2 snd_hda_codec_generic,snd_hda_codec_realtek
snd_hda_intel 53248 8
snd_intel_dspcfg 24576 1 snd_hda_intel
snd_hda_codec 131072 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_core 90112 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
nouveau 1949696 0
snd_hwdep 20480 1 snd_hda_codec
b43 417792 0
crct10dif_pclmul 16384 1
snd_pcm 106496 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
ghash_clmulni_intel 16384 0
cordic 16384 1 b43
snd_seq_midi 20480 0
mac80211 843776 1 b43
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 36864 1 snd_seq_midi
btusb 57344 0
btrtl 24576 1 btusb
btbcm 16384 1 btusb
snd_seq 69632 2 snd_seq_midi,snd_seq_midi_event
btintel 24576 1 btusb
bluetooth 581632 27 btrtl,btintel,btbcm,bnep,btusb,rfcomm
mxm_wmi 16384 1 nouveau
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
video 49152 1 nouveau
cfg80211 704512 2 b43,mac80211
ttm 106496 1 nouveau
snd_timer 36864 2 snd_seq,snd_pcm
aesni_intel 372736 0
ucsi_ccg 20480 0
drm_kms_helper 184320 1 nouveau
crypto_simd 16384 1 aesni_intel
input_leds 16384 0
joydev 24576 0
cryptd 24576 2 crypto_simd,ghash_clmulni_intel
typec_ucsi 40960 1 ucsi_ccg
ssb 73728 1 b43
ecdh_generic 16384 1 bluetooth
glue_helper 16384 1 aesni_intel
i2c_algo_bit 16384 1 nouveau
ecc 28672 1 ecdh_generic
wmi_bmof 16384 0
libarc4 16384 1 mac80211
snd 90112 27 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi
typec 45056 1 typec_ucsi
k10temp 16384 0
fb_sys_fops 16384 1 drm_kms_helper
soundcore 16384 1 snd
syscopyarea 16384 1 drm_kms_helper
ccp 86016 1 kvm_amd
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
mac_hid 16384 0
sch_fq_codel 20480 2
parport_pc 40960 1
ppdev 24576 0
lp 20480 0
drm 491520 3 drm_kms_helper,ttm,nouveau
parport 53248 3 parport_pc,lp,ppdev
ip_tables 32768 0
x_tables 40960 1 ip_tables
autofs4 45056 2
hid_generic 16384 0
usbhid 57344 0
hid 131072 2 usbhid,hid_generic
crc32_pclmul 16384 0
i2c_piix4 28672 0
nvme 49152 2
r8169 90112 0
i2c_nvidia_gpu 16384 0
ahci 40960 0
bcma 65536 1 b43
realtek 24576 1
nvme_core 102400 4 nvme
libahci 32768 1 ahci
wmi 32768 3 wmi_bmof,mxm_wmi,nouveau
gpio_amdpt 20480 0
gpio_generic 20480 1 gpio_amdpt

It's worth noticing that for my GTX 1660 I've found a way to boot into the desktop but with several problems. When it reaches the login screen, it's all back. But if I press enter and type the password and press enther, I can use the desktop, but not change resolution, it gets all black again. Also if I logout everything goes black and I have to reboot.

On GT 750 I boot into a all purple screen but the same technique of typing password will give me a black screen.

However I guess that simply activating Wayland would solve all of this as it did on Ubuntu 19.

Do anyone knows anything more I can try?

What about ouveau driver. Am I using it or not?