The workaround for me was to disable vt_handoff in /etc/grub.d/10_linux* (i.e. set vt_handoff=0 in both places near the top of the file).
That resolved the issue completely.
The workaround for me was to disable vt_handoff in /etc/grub. d/10_linux* (i.e. set vt_handoff=0 in both places near the top of the file).
That resolved the issue completely.