kudzu is Obsolete and no longer part of Debian
Kudzu was a hardware probing tool run at system boot time to determine what hardware had been added or removed from the system. It was removed from Debian post-Sarge (387638).
Debian now does the same job as kudzu in different and better ways.
Read up on udev
Also, Look into the following commands: lspci(8), lshal(1), lsusb(8), lsmod(8), dmidecode(8) (or see /sys/class/dmi/id/*).
Configuring xserver-xorg
Used to be one might have to use the ddcxinfo, from the kudzu package to generate a hopefully valid and optimized Monitor-entry for XF86Config-4. Nowadays, Xorg can usually auto-detect the appropriate configuration.
To reconfigure XOrg, you can use dpkg-reconfigure xserver-xorg