Bug#405549: installation-reports: Also ATI Rage
> My ATI Rage was also not configured after install -- gdm fails and X
> reports no devices. Missing input and video drivers. ATI device is
> configured as "agp". The desktop package doesn't seems to install the
> correct driver or detect it I guess. Easy fix -- I added the video and
> input tasks and ran dpkg-reconfigure xserver-xorg. xorg.conf was
> correctly configured at this point though I had to specifically choose
> the "ati" driver.
its a known issue with the xserver-xorg package. It has already been fixed in unstable and the fix should hit testing in a couple of days.