I have the same issue with a new PC and fresh install. Solution suggested by chbota does not work for me (lightdm is unable to start even after drivers). Same if I boot with "nomodeset". I guess that one of the recent hardware is the problem, most probably the graphics card.
I would appreciate some help. Solus is great and I don't want to use any other distro if possible.
Chipset: X570
GPU: Nvidia 2070 Super