“The configuration necessary for getting all four displays to
work in this year’s Ultimate Linux Box may have been common sense
for any X config or ATI guru, but I had to do a bit of hacking to
get it all working. The autodetected multihead from FC2 had two
device sections, referencing the two PCI IDs given by the video
card. These did multihead fine, but the sub-device or second and
fourth video outputs simply were clones of the first and third.“I had to create additional device entries for the sub-devices,
and apply a fixed Screen entry for all of the device
entries…”