--- gdm/config/gdm

+++ gdm/config/gdm

@@ -1,8 +1,8 @@

 #%PAM-1.0

-auth       required	pam_env.so

-auth       required	pam_stack.so service=system-auth

-auth       required	pam_nologin.so

-account    required	pam_stack.so service=system-auth

-password   required	pam_stack.so service=system-auth

-session    required	pam_stack.so service=system-auth

-session    optional     pam_console.so

+auth		required	pam_shells.so

+auth		required	pam_succeed_if.so quiet uid ne 0

+auth		include		common-login

+account		include		common-login

+password	include		common-login

+session		substack	common-login

+session		optional	pam_console.so

--- gdm/config/gdm-autologin

+++ gdm/config/gdm-autologin

@@ -1,8 +1,7 @@

 #%PAM-1.0

-auth       required	pam_env.so

-auth       required	pam_nologin.so

-auth       required	pam_permit.so

-account    required	pam_stack.so service=system-auth

-password   required	pam_stack.so service=system-auth

-session    required	pam_stack.so service=system-auth

-session    optional     pam_console.so

+auth		required	pam_nologin.so

+auth		required	pam_permit.so

+account		include		common-login

+password	include		common-login

+session		substack	common-login

+session		optional	pam_console.so

--- gdm/utils/gdmsetup-pam

+++ gdm/utils/gdmsetup-pam

@@ -1,6 +1,6 @@

 #%PAM-1.0

-auth       sufficient   pam_rootok.so

-auth       required     pam_stack.so service=system-auth

-session    required     pam_permit.so

-session    optional     pam_xauth.so

-account    required     pam_permit.so

+auth	sufficient	pam_rootok.so

+auth	include		system-auth

+account	required	pam_permit.so

+session	required	pam_permit.so

+session	optional	pam_xauth.so