Comment 5 for bug 1949970

ubuntu@lp1949970-i:~$ dpkg -l lightdm|grep lightdm
ii lightdm 1.30.0-0ubuntu4 amd64 Display Manager
ubuntu@lp1949970-i:~$ journalctl -b -g 'unable to dlopen'
-- Journal begins at Tue 2022-01-11 17:28:57 UTC, ends at Tue 2022-01-11 17:59:05 UTC. --
Jan 11 17:58:14 lp1949970-i lightdm[939]: PAM unable to dlopen(pam_kwallet.so): /lib/security/pam_kwallet.so: cannot open shared object file: No such file or directory
Jan 11 17:58:14 lp1949970-i lightdm[939]: PAM unable to dlopen(pam_kwallet5.so): /lib/security/pam_kwallet5.so: cannot open shared object file: No such file or directory
Jan 11 17:58:16 lp1949970-i lightdm[1083]: PAM unable to dlopen(pam_kwallet.so): /lib/security/pam_kwallet.so: cannot open shared object file: No such file or directory
Jan 11 17:58:16 lp1949970-i lightdm[1083]: PAM unable to dlopen(pam_kwallet5.so): /lib/security/pam_kwallet5.so: cannot open shared object file: No such file or directory

...(upgrade and reboot)...

ubuntu@lp1949970-i:~$ dpkg -l lightdm|grep lightdm
ii lightdm 1.30.0-0ubuntu4.21.10.1 amd64 Display Manager
ubuntu@lp1949970-i:~$ journalctl -b -g 'unable to dlopen'
-- Journal begins at Tue 2022-01-11 17:28:57 UTC, ends at Tue 2022-01-11 18:01:00 UTC. --
-- No entries --