My Compaq sp700 workstation has both a built in Texas
Instruments TVP4020 Permedia 2 (rev 17) and a Matrox
Millennium II (rev 0). Xconfigurator chooses the TI which
has no driver hence X cannot be configured. XF86Setup
however does a fine job.
Xconfigurator needs to be able to deal with a choice among
all installed display adapters.
This should work fine in the latest release.