--- config/gdm.conf-custom
+++ config/gdm.conf-custom
@@ -37,6 +37,12 @@
 #
 # NOTE: Lines that begin with "#" are considered comments.
 #
+# SuSEconfig comments: Some of entries in this file are updated by SuSEconfig,
+# whenever sysconfig entry change. To edit these entries, please use sysconfig
+# (or never touch these sysconfig variables).
+# Comment for each of this entry contains related /etc/sysconfig file and
+# variable.
+#
 # Have fun!
 
 [daemon]