diff --git a/bin/set-kano-hdmi b/bin/set-kano-hdmi
index d141c42..8aa991c 100755
--- a/bin/set-kano-hdmi
+++ b/bin/set-kano-hdmi
@@ -145,7 +145,7 @@ logger.error(status)
 logger.error(edid)
 
 # fix hdmi audio status
-if not edid['hdmi_supported'] and is_HDMI():
+if not edid['hdmi_audio'] and is_HDMI():
     logger.error('hdmi audio not supported on this screen, changing to analogue')
     set_to_HDMI(False)
 
diff --git a/kano_settings/config_file.py b/kano_settings/config_file.py
index 6eace12..c06040c 100644
--- a/kano_settings/config_file.py
+++ b/kano_settings/config_file.py
@@ -18,12 +18,13 @@
 USER_ID = None
 
 username = get_user_unsudoed()
-settings_dir = os.path.join('/home', username, '.kano-settings')
-if os.path.exists(settings_dir) and os.path.isfile(settings_dir):
-    os.rename(settings_dir, settings_dir + '.bak')
-ensure_dir(settings_dir)
-chown_path(settings_dir)
-settings_file = os.path.join(settings_dir, 'config')
+if username != 'root':
+    settings_dir = os.path.join('/home', username, '.kano-settings')
+    if os.path.exists(settings_dir) and os.path.isfile(settings_dir):
+        os.rename(settings_dir, settings_dir + '.bak')
+    ensure_dir(settings_dir)
+    chown_path(settings_dir)
+    settings_file = os.path.join(settings_dir, 'config')
 
 defaults = {
     'Keyboard-continent-index': 1,
@@ -88,6 +89,9 @@ def get_setting(variable):
 
 
 def set_setting(variable, value):
+    if username == 'root':
+        return
+
     logger.debug('config_file / set_setting: {} {}'.format(variable, value))
 
     data = read_json(settings_file)