File gdm-autologin.pamd of Package gdm

#%PAM-1.0
# GDM PAM configuration for autologin
auth     requisite      pam_nologin.so
auth     required       pam_permit.so
auth     optional       pam_gdm.so
auth     optional       pam_gnome_keyring.so
account  include        common-account
password include        common-password
session  required       pam_loginuid.so
session  optional       pam_keyinit.so force revoke
session  include        common-session