We are using LDAP and mysql backend configuration with Grafana, but it seems we cannot change the admin password or even disable the admin account in spite of changing the grafana.ini configuration (below). One additional side note - when I attempt to change the password in the UI it gives me cannot change with LDAP configured prompt.
141 # default admin user, created on startup
142 admin_user = admin
144 # default admin password, can be changed before first start of grafana, or in profile settings
145 admin_password = admin-token