Bug#627372: Console turns black during boot.
AlanKim Zimmerman wrote:
> The setpci solves the issue, and by following the ubuntu bug fix the
> command is put into /etc/rc.local
Yuck. Marking as a duplicate of fdo bug 40455. We can undo that
later if a fix for 40455 doesn't help. :) Thanks for investigating.
A good next step would be to try 3.2-rc6 or newer from experimental,
since there have been some backlight fixes upstream recently. Though
I'm not too optimistic yet.