video_device default should be string

diff --git a/plugins/qrscanner.py b/plugins/qrscanner.py
index 66a05d9..e99a0bc 100644 (file)
--- a/plugins/qrscanner.py
+++ b/plugins/qrscanner.py
@@ -137,7 +137,7 @@ class Plugin(BasePlugin):
                 if self.config.get("video_device") == "default":
                     self.video_device_edit.setText("")
                 else:
-                    self.video_device_edit.setText(self.config.get("video_device"))
+                    self.video_device_edit.setText(self.config.get("video_device",''))
             else:
                 custom_device_label.setVisible(False)
                 self.video_device_edit.setVisible(False)