Bug#556159: xserver-xorg-video-radeon: Blank Screen when starting gdm(X) if "NoAccel" is set to "False"

[José Luis Castellón]

> Does Debian 6.12.4 radeon package help?
>
> Brice
>
> Nope, don't think so, I'm on 6.12.6 and the bug is still there...

I managed to solve the issue by editing my xorg.conf and adding these:
Option      "DRI"    "False"
Option        "AGPMode" "1"

No more blank screens for me :-)