The following other bugs reports say the same thing: #1768488 and #1830079 I also find the same bug in Xubuntu 20.04 and in my own custom 20.04 Ubuntu.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1861598 Title: lightdm assumes pam-kwallet to be always installed Status in lightdm package in Ubuntu: New Bug description: During boot, I see this error: > Feb 02 10:50:05 myhost lightdm[3224]: PAM unable to dlopen(pam_kwallet.so): /lib/security/pam_kwallet.so: cannot open shared object file: No such file or directory > Feb 02 10:50:05 myhost lightdm[3224]: PAM adding faulty module: pam_kwallet.so > Feb 02 10:50:05 myhost lightdm[3224]: PAM unable to dlopen(pam_kwallet5.so): /lib/security/pam_kwallet5.so: cannot open shared object file: No such file or directory > Feb 02 10:50:05 myhost lightdm[3224]: PAM adding faulty module: pam_kwallet5.so which I guess it's caused by this: > # grep kwallet /etc/pam.d/lightd* > /etc/pam.d/lightdm:auth optional pam_kwallet.so > /etc/pam.d/lightdm:auth optional pam_kwallet5.so > /etc/pam.d/lightdm:session optional pam_kwallet.so auto_start > /etc/pam.d/lightdm:session optional pam_kwallet5.so auto_start > /etc/pam.d/lightdm-greeter:auth optional pam_kwallet.so > /etc/pam.d/lightdm-greeter:auth optional pam_kwallet5.so > /etc/pam.d/lightdm-greeter:session optional pam_kwallet.so auto_start > /etc/pam.d/lightdm-greeter:session optional pam_kwallet5.so auto_start kwallet is a KDE program, which is not installed on MATE (and I think it shouldn't be), so I guess that such modules should not be [attempted to be] loaded. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: lightdm 1.26.0-0ubuntu1 ProcVersionSignature: Ubuntu 5.3.0-28.30~18.04.1-generic 5.3.13 Uname: Linux 5.3.0-28-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.9-0ubuntu7.9 Architecture: amd64 Date: Sun Feb 2 11:03:53 2020 InstallationDate: Installed on 2020-01-20 (12 days ago) InstallationMedia: Ubuntu-MATE 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1861598/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp