Comment 10 for bug 571678

Thanks dmitry, comment #9 helped me with my Acer 4810T. However, there is a a rather long delay after Grub screen with nothing but a black screen and a flashing cursor. Then the backlight turns off, on again, and then the bootscreen loads, apparently via Plymouth? And there are always console messages that briefly flash into view when it transitions from plymouth to KDM. Still a very jarring, unprofessional boot experience.