I have the same problem. In Ubuntu 8.04, it works with "blacklist video", but after upgrading to Ubuntu 8.10 with 2.6.27 kernel, I would get a black/blank screen when going into KDE.
I have the same problem. In Ubuntu 8.04, it works with "blacklist video", but after upgrading to Ubuntu 8.10 with 2.6.27 kernel, I would get a black/blank screen when going into KDE.