startx results in an error or a black screen

[Justin Mattock]

Hello, I'm creating an LFS system for the new imac, and am up to the
point of compiling the xserver
and all of it's libs/proto's. I decided to use git for all of the
required dependencies
which all compiled fine.
The problem is when I "startx" I receive an error
from("vesa""vga""nv") something about sig 11
I dont receive an error from the proprietary module, only the logo
appears, and then a black screen.
is this possible or is it not possible yet?
the kernel I'm using is 2.6.29.

regards,

-- 
Justin P. Mattock