Is this maybe a missing libGL or OpenGL package? I checked for and have installed lib64glu1, lib64gl1, and lib64glapi0.
$ glxinfo Error: unable to open display
I don’t know if that is normal because X isn’t running or something else. I did find missing fcitx (don’t know why I would need that) and importantly when that installed I discovered locale packages were not installed. So some key packages did get missed. A missing package is, to me at least, a possibility.
Another thing is it does not matter if x11-driver-video-vboxvideo is installed or not it does not boot either way.
These are screen shots of some of Xorg.0.log with ‘x11-driver-video-vboxvideo’. I believe we see the vboxvideo driver is not loaded and modesetting is used anyway:
Last screen shot shows that vboxvido is installed even though the log shows it as “does not exist”. There may be some relevant info in xorg-session.log also. I can post via screen-shot if requested.
Post-edit: Opps. Forgot my trademark.