Hello, I'm a totally newbie on this, and I was attempting to install Lubuntu 12.10 for ppc on my dual 2ghz g5 mac. When installing everything will come as supposed , but when I boot into lubuntu...nothing just a black terminal screen. I tried the no video solution and nothing...I tried installing ubuntu desktop and nothing...so far I don't know what is wrong or what could have gone possible wrong with it:

This is the kind of Video card I have

Chipset Model: GeForce 6600
Type: Display
Bus: PCIe
Slot: SLOT-1
PCIe Lane Width: x16
VRAM (Total): 256 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0141
Revision ID: 0x00a4
ROM Revision: 2149
Resolution: 1680 x 1050
Depth: 32-Bit Color
Core Image: Hardware Accelerated
Main Display: Yes
Mirror: Off
Online: Yes
Quartz Extreme: Supported
Rotation: Supported
Display Connector:
Status: No Display Connected
How can I make this lubuntu thing to work, and by the way it doesn't boot normally to osx, I mean the lubuntu 12.10 that I have installed. I have to put the leopard disk on it and force the reboot like 3 times and finally boot on the installer CD (leopard) and erase the ubuntu partition.
I have an OSX extra hd 150gb and I'd like to have lubuntu or ubunto for ppc there.

I hope someone can help me.