Troubles while installing any Linux OS on Asus TUF FX504

You should install nvidia 450 drivers from ppa for ubuntu

$ sudo add-apt-repository ppa:graphics-drivers/ppa
$ sudo apt update
$ sudo apt dist-upgrade
$ sudo apt install nvidia-driver-450
$ shutdown -r now

Then you can use eGPU with

__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia COMMAND_YOU_WANT

Look at this : http://doc.kubuntu-fr.org/asus-a17-tuf766iu

Installing the Ubuntu 19.04 version solves most of the acpi and video driver issues. But one problem of wifi driver being unassigned still persisted which has prompted me to do hwe kernel updation.

Hopefully, 20.04 Ubuntu to be released in 4 months will have the smoothest driver support for Asus TUF FX505

The issue is related to acpi and video drivers. You can workaround it by adding acpi_osi=Linux and nouveou.modeset=0 kernel parameters in the grub entry during installation and initial starts.

I followed this guide for drivers setup in Ubuntu 18.04. I recommend to use nvidia-drivers-4.18 instead of 4.15 version in step 6 as I experimented freezes during next boots. After switching to 4.18 everything works fine.

Just in case... I did the installation using acpi=off before finding that guide.

I had the same problem when I tried to install ubuntu in that model. First of all the boot usb I was using had problems, try to use a new usb to create the boot device. Next, the screen is frozen because of missing drivers of the video card. You can change the system to use the integrated Intel video card or install the drivers to use the Nvidia Card. You can use the next post to install the nvidia drivers and solve the problem.

How to install the NVIDIA drivers on Ubuntu 18.04 Bionic Beaver Linux