Window 8 in efi mode and Ubuntu in legacy bios mode

[Tom H]

On Tue, Oct 22, 2013 at 6:21 PM, Jim Byrnes <jf_byrnes at comcast.net> wrote:
>
> I haven't actually tried to install Ubuntu yet. I have been holding off and
> gathering info, hoping to improve my chances of success. However if I do not
> disable efi and add nomodeset the live dvd ends at a black screen.

Is it a problem with brightness? Is the Live disk fully booted but the
screen too dark for you to see the login/desktop?

How about booting with "noacpi"? Or with "acpi_backlight=vendor"?