password not accepted

Hi community!

Goal: My user has _one_ password for all system programs

What happens instead: I can login into console or gdm, but neither ecryptfs-setup-private nor gnome-screensaver accept my login password.

I should mention I did some crazy stuff immediately before the problem occured:
* removed encrypted homedir and replaced it with an unencrypted one. (I also deleted /home/.ecryptfs/user)
* deleted and re-added the corresponding user (same uid)

What I tried:
* sudo chown user.user -R $HOME

I assume there are two login mechanisms involved. Where should I have a look at?

Thank you for your advice!