Yes. In all cases, GRUB itself draws fine.

On further experimentation, it seems that it might be the case that the
boot after a *failed* boot works.

If nothing is visible and I blindly enter my cryptroot password it can
boot all the way; rebooting with ctrl-alt-delete after that seems to
result in another faliure to display anything on the subsequent boot.

Restarting with ctrl-alt-delete from the (unseen) initramfs prompt
seems to reliably result in the subsequent boot getting displayed.

This does not seem to be related to $VT_HANDOFF in GRUB; whether or not
it is enabled in grub.cfg does not appear to make a difference.

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https://bugs.launchpad.net/bugs/1720197

Title:
  Every second(?) boot fails to display anything [MSHYBRID mode]

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