Just wanted to let you know that I am stuck on a black screen as well. I did an update via eopkg not 5 minutes ago, then everything broke. I guess something went wrong, even though I got no error message. Since OP installed wine through presumably eopkg, I assume that's the real reason for the black screen, not the SD card.
Going to another terminal via Ctrl + Alt + F2 shows a frozen white cursor ( _ ) in the top left corner.
Hardware: Lenovo Laptop Ideapad 330s
I am running a Gnome desktop, so it's not Mate either. Since the last package I updated was systemd, my guess would be there.
Can the installation be saved, or should I just put a fresh image on?