b2b17b2c_6_6__The_X_Display_Manager__Description
[File] Xsetup_* [Description] 
Script to automatically launch applications before displaying the chooser or login interfaces. There is a script for each display being used, named Xsetup_*, where * is the local display number. Typically these scripts run one or two programs in the background such as xconsole.
6.6. The X Display Manager
Description