The USB is brand new. i launched Ubuntu in safe graphics mode and the screen goes like this and then goes completely black.
I downloaded Rufus and Ubuntu 20.04 from their websites, then with Rufus copied Ubuntu to the USB then I cleaned the disk (Shift while resetting computer -> solve problem -> system symbol -> and emptied the disk) then I turned off and on the computer and selected safe graphics from the GNU GRUB menu, I launched safe graphics because I was following a tutorial.
I turned off the PC and tried the no safe graphics mode and it works!
