Comment 2 for bug 1625647

I have this on Lubuntu 18.04 with lightdm:

    PAM unable to dlopen(pam_gnome_keyring.so)... cannot open shared object file: No such file or directory

It is the same issue as in [this question](https://askubuntu.com/questions/758696/cannot-login-into-locked-ubuntu-14-04-session-unity). And the logs show the library files are missing. I fixed it by installing libpam-kwallet[45] and libpam-gnome-keyring.

Now there are some other issues, but this one seems to be solved.