On Aug 23, 2012, at 8:18 AM, tobiasbp <tobiasbp@gmail.com> wrote:

I have not been able to solve the problem of the iCal client not being
able to look-up/auto-complete locations if they are stored in LDAP.

For that reason i have been forced to define locations locally in resources.xml

My guess is your caldavd plist settings for LDAP don't match your LDAP server settings. See this page for an example DirectoryService plist section:

http://trac.calendarserver.org/wiki/ConfiguringLDAP

...especially the locations > mapping section -- make sure the values in that mapping match the LDAP attributes from your server.