Configuring xorg.conf for nvidia drivers

[xNotta]

Hi, I would like to use my GPU to power Pyrit but my Nvidia GPU isn't detected.

Here is what I've tried:

# apt-get update
# apt-get install linux-headers-$(uname -r)
# apt-get install nvidia-kernel-dkms
reboot - the install said Nouveau would conflict but would be corrected by a restart.
# apt-get install nvidia-xconfig
# nvidia-xconfig
reboot

After the nvidia-xconfig I reboot and then my X doesn't start again.

I've also installed via the .run from nvidia, but the nvidia drivers wern't used and creating the XOrg.conf causes X to still not boot.

Can anyone help me install the nvidia drivers on my persistence USB so that I can use my GPU with Pyrit please?

EDIT: It seems the install isn't the problem. The problem is with the /etc/X11/XOrg.conf. It seems like creating one prevents X from booting.
I've tried the Nvidia-xconfig and created a new .conf (as http://wiki.debian.org/NvidiaGraphic...e_an_xorg.conf says to ) containing:

Section "Device"
    Identifier  "Video Card"
    Driver              "nvidia"
EndSection

I don't know what else to do to make my Nvidia drivers work.

UPDATE:
I am running Kali amd64 v1.0.2 usb persistent with a nvidia optimus card (dedicated nvidia/Integrated intel).
Tried bumblebee, all versions of nvidia's .debs, nvidia-kernel-dkms, samiux's blog post, nvidia's .run. Also tried running the kernel with the nomodeset option.

I am still unable to get nvidia drivers working. Still looking for a solution.