Password to unlock your login keyring (Ubuntu 19.10)
A solution for me was to remove the login.keyring file under "~/.local/share/keyrings/" on versions of Ubuntu >= 14, and in "~/.gnome2/" in previous versions. See also the answer here: https://askubuntu.com/a/191249/630837 and comment here: https://blog.roberthallam.org/2010/07/current-password-does-not-match-keyring-fix/#comment-232503 .