diff -p -up ./data/pam/lightdm-autologin.pamfix ./data/pam/lightdm-autologin
--- ./data/pam/lightdm-autologin.pamfix	2011-12-09 01:51:23.000000000 +0000
+++ ./data/pam/lightdm-autologin	2012-07-17 17:40:30.826902731 +0000
@@ -6,8 +6,8 @@ auth      required pam_nologin.so
 # Load environment from /etc/environment and ~/.pam_environment
 auth      required pam_env.so
 
-# Use /etc/passwd and /etc/shadow for passwords
-auth      required pam_unix.so
+# Allow login without password
+auth      required pam_permit.so
 
 # Stop autologin if account requires action
 account   required pam_unix.so
@@ -17,3 +17,9 @@ password  required pam_deny.so
 
 # Setup session
 session   required pam_unix.so
+
+# To set ACLs correctly with systemd
+session   required pam_systemd.so
+
+# To get apps needing consolehelper working
+session   optional pam_console.so
diff -p -up ./data/pam/lightdm-greeter.pamfix ./data/pam/lightdm-greeter
--- ./data/pam/lightdm-greeter.pamfix	2011-12-09 01:51:23.000000000 +0000
+++ ./data/pam/lightdm-greeter	2012-07-17 17:40:30.826902731 +0000
@@ -14,3 +14,6 @@ password  required pam_deny.so
 
 # Setup session
 session   required pam_unix.so
+
+# Systemd support
+session   required pam_systemd.so class=greeter
diff -p -up ./data/pam/lightdm.pamfix ./data/pam/lightdm
--- ./data/pam/lightdm.pamfix	2011-12-09 01:51:23.000000000 +0000
+++ ./data/pam/lightdm	2012-07-17 17:41:36.566109910 +0000
@@ -9,6 +9,9 @@ auth      required pam_env.so
 # Use /etc/passwd and /etc/shadow for passwords
 auth      required pam_unix.so
 
+# Gnome Keyring's PAM support
+auth      optional pam_gnome_keyring.so
+
 # Check account is active, change password if required
 account   required pam_unix.so
 
@@ -17,3 +20,15 @@ password  required pam_unix.so
 
 # Setup session
 session   required pam_unix.so
+
+# To set ACLs correctly with systemd
+session   required pam_systemd.so
+
+# To get apps needing consolehelper working
+session   optional pam_console.so
+
+# Gnome Keyring's PAM support
+session   optional pam_gnome_keyring.so auto_start
+
+# To enable tmpfs for xguest account (mga#4950)
+session   required pam_namespace.so