Entering the command under Feisty, the first thing that comes up is this...
Click thumbnail for larger image
Clicking the down-arrow opens a list of almost 3-dozen video drivers.
Using the Bianca LiveCD, the first question asked is "Attempt to autodetect video hardware?"
Each time you click Forward
, you're asked another question (about the display, keyboard, or mouse) that corresponds to an option entry in the xorg.conf file. Hovering your mouse over the input box causes a help/hint dialog to open.
At the end, a backup of xorg.conf is made before the new data is written (I did not allow it to complete).