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.
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.