Lightdm should not emit logind "unlock" signal when the user is not prompted for a password. This can lead to a security issue:
# Log-in (unity session).
# Add the current user to nopasswdlogin group.
# Lock the sessions.
# Session indicator->Switch account...
# "Login" in again.
Expected behavior:
The lockscreen is still active.
Current behavior:
The session in unlocked.
We could work around the issue directly in unity, but IMHO would be cleaner to avoid that lightdm is emitting the logind signal.
Lightdm should not emit logind "unlock" signal when the user is not prompted for a password. This can lead to a security issue:
# Log-in (unity session).
# Add the current user to nopasswdlogin group.
# Lock the sessions.
# Session indicator->Switch account...
# "Login" in again.
Expected behavior:
The lockscreen is still active.
Current behavior:
The session in unlocked.
We could work around the issue directly in unity, but IMHO would be cleaner to avoid that lightdm is emitting the logind signal.