I have the same problem: 13-inch MACBOOKPRO 2010 stays on a black screen after the logo screen.
This happens with 5.16-17-18: upgraded from 5.15 (working) or fresh install; on flash key prepared with etcher, or external disk prepared from a working batocera (both 5.15 on mac, and 5.18 on pc 64).
For what I got, X crashes at boot. MacBook Pro (13-inch, Mid 2010) mounts NVIDIA Geforce GT 320M which should support OpenGL 3.3.
@oomighoo: did you manage to solve it?
@adenislamarre, any idea on how to solve it?