[LightDM] Authentication with no passwords

[Robert Ancell]

In both cases the log is showing the authentication failed:
[+5.14s] DEBUG: Session 15571 authentication complete with return
value 7: Authentication failure
[+57.17s] DEBUG: Session 15831 authentication complete with return
value 7: Authentication failure


On 27 December 2012 12:07, David Edmundson <david at davidedmundson.co.uk>wrote:

> Log for user foo which should have no password having run "sudo
> gpasswd foo nopasswdlogin" before.
>
> [+5.13s] DEBUG: Greeter start authentication for foo
> [+5.13s] DEBUG: Started session 15571 with service 'lightdm', username
> 'foo'
> [+5.14s] DEBUG: Session 15571 authentication complete with return
> value 7: Authentication failure
> [+5.14s] DEBUG: Authenticate result for user foo: Authentication failure
> [+5.14s] DEBUG: Session 15571 exited with return value 1
>
> It's definitely doing something different, because for a regular user,
> I get a prompt, and a 3 second delay before authentication completes.
>
> [+54.74s] DEBUG: Greeter start authentication for david
> [+54.74s] DEBUG: Started session 15831 with service 'lightdm', username
> 'david'
> [+54.77s] DEBUG: Session 15831 got 1 message(s) from PAM
> [+54.77s] DEBUG: Prompt greeter with 1 message(s)
> [+54.77s] DEBUG: Continue authentication
> [+57.17s] DEBUG: Session 15831 authentication complete with return
> value 7: Authentication failure
> [+57.17s] DEBUG: Authenticate result for user david: Authentication failure
> [+57.17s] DEBUG: Session 15831 exited with return value 1
>
> Dave
>
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