Lack of authentication fails silently

[itscool900]

If you don't have a method of authentication, and you press save, there is no error in the GUI. This is misleading and could lead to losing changes.

Please give an error to the user if there was a problem saving (in particular, when no authentication agent was found).

[d4nj1]

Hi,
this is already implemented in https://github.com/d4nj1/TLPUI/blob/master/tlpui/uihelper.py#L22
So if you do not have a graphical application handling sudo then you should get a dialogbox like this:

If you don't get this it would be nice if you can you tell me which version of TLP-UI you use and the installation method you chose.