Suse 10.1: Blank Screen At Boot Or At "test Configuration" O

Hello,
I have a iBook dual usb G3 700mhz with I think a Radeon mobility M6 or Radeon mobility 7500 video card.
I installed suse ppc 10.1 on it, but got a blank screen at first boot. I couldn't fix it in text mode too, so I reinstalled suse hoping I could fix it in the installation with "test configuration". It didn't work though, when I press it I get some vague text, blank screen for +- 30s, same vague text in blue and the configuration panel again. The text reads something like this:

X window 6.9
Release
current os
Build date
Module
== Markers
== config
FBDEV invalid argument 
could not init font path /blabla
could not init font path /blabla

I tried numerous display settings and monitor (changed the "apple lcd" to "apple ibook"), but none worked. My video card is configured as "Ati Radeion L Y", and I can't change it.

Is there a way to solve this isue?