Comment 4 for bug 1172534

No. The issue presented here is that for some reason update-grub is run after installation in such a way that it does not attach quite splash as boot parameters. Consequently running it manually will resolve the situation. The fix to this would also be a no-change update to kubuntu-settings forcing a rerung of update-grub at update.

Why exactly this happens I am not sure about, a first investigation seems to suggest that debian-installer's grub-installer runs update-grub before writing quite splash to the config.