Comment # 5 on bug 1206316 from Felix Miata

1-attempted bug 1188954 workaround
2-can't count on i915 being included in initrd without it
3-display goes black as soon as initrd finishes loading and stays that way
until i915 loads, which happens so late that only ~15-30 boot message lines
appear before shell prompt appears

Above is not across the board vis-a-vis Intel GPUs. I haven't tried to
inventory which GPU's produce which combinations of above listed behaviors, or
none of them at all.