Hello I am trying to solve my problems for days but couldn't find any solution so here is the story and the question:
I have created a portable Ubuntu 18.04 following this guide https://www.fosslinux.com/10212/how-to-install-a-complete-ubuntu-on-a-usb-flash-drive.htm . I have also added another EFI partition as the installation prompted me to do so.
I have completed these steps on an old machine with:
Intel 2nd Gen. i7 CPU, nVidia GT630M GPU, 12 GB of RAM
The portable Ubuntu runs in the old system so far but when I switch the computers, Ubuntu just stuck at a full black screen after the 5 dots are passed.
The new system has the following hardware configuration:
Intel 8th Gen. i7 CPU, nVidia GTX1070M GPU, 24 GB of RAM
So if anyone has encountered the same problem or any solution I will appreciate your answers. If you have any advice on reinstalling Ubuntu on the USB I can also do that.