Ever since upgrading to 16.04, Rhythmbox GUI fails to open. Also, if I open User accounts under System Settings nothing opens, but after I can't close the System Settings window..
And here's a sample of auth.log entries:
May 6 07:32:03 steven-OptiPlex-7020 lightdm: PAM unable to dlopen(pam_kwallet.so): /lib/security/pam_kwallet.so: cannot open shared object file: No such file or directory
May 6 07:32:03 steven-OptiPlex-7020 lightdm: PAM adding faulty module: pam_kwallet.so
May 6 07:32:03 steven-OptiPlex-7020 lightdm: PAM unable to dlopen(pam_kwallet5.so): /lib/security/pam_kwallet5.so: cannot open shared object file: No such file or directory
May 6 07:32:03 steven-OptiPlex-7020 lightdm: PAM adding faulty module: pam_kwallet5.so
May 6 07:32:03 steven-OptiPlex-7020 lightdm: pam_unix(lightdm-greeter:session): session opened for user lightdm by (uid=0)
May 6 07:32:03 steven-OptiPlex-7020 systemd-logind[1004]: New session c1 of user lightdm.
May 6 07:32:03 steven-OptiPlex-7020 systemd: pam_unix(systemd-user:session): session opened for user lightdm by (uid=0)
May 6 07:32:03 steven-OptiPlex-7020 lightdm: pam_ck_connector(lightdm-greeter:session): nox11 mode, ignoring PAM_TTY :0
May 6 07:32:05 steven-OptiPlex-7020 lightdm: PAM unable to dlopen(pam_kwallet.so): /lib/security/pam_kwallet.so: cannot open shared object file: No such file or directory
May 6 07:32:05 steven-OptiPlex-7020 lightdm: PAM adding faulty module: pam_kwallet.so
May 6 07:32:05 steven-OptiPlex-7020 lightdm: PAM unable to dlopen(pam_kwallet5.so): /lib/security/pam_kwallet5.so: cannot open shared object file: No such file or directory
May 6 07:32:05 steven-OptiPlex-7020 lightdm: PAM adding faulty module: pam_kwallet5.so
May 6 07:32:05 steven-OptiPlex-7020 lightdm: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "steven"
May 6 07:32:15 steven-OptiPlex-7020 lightdm: pam_unix(lightdm-greeter:session): session closed for user lightdm
May 6 07:32:15 steven-OptiPlex-7020 lightdm: pam_unix(lightdm:session): session opened for user steven by (uid=0)
May 6 07:32:15 steven-OptiPlex-7020 systemd-logind[1004]: New session c2 of user steven.
May 6 07:32:15 steven-OptiPlex-7020 systemd: pam_unix(systemd-user:session): session opened for user steven by (uid=0)
May 6 07:32:15 steven-OptiPlex-7020 lightdm: pam_ck_connector(lightdm:session): nox11 mode, ignoring PAM_TTY :0
May 6 07:32:18 steven-OptiPlex-7020 gnome-keyring-daemon[1887]: The PKCS#11 component was already initialized
May 6 07:32:18 steven-OptiPlex-7020 gnome-keyring-daemon[1887]: The Secret Service was already initialized
May 6 07:32:18 steven-OptiPlex-7020 gnome-keyring-daemon[1887]: The SSH agent was already initialized
May 6 07:32:19 steven-OptiPlex-7020 polkitd(authority=local): Registered Authentication Agent for unix-session:c2 (system bus name :1.79 [/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_GB.UTF-8)
May 6 07:32:31 steven-OptiPlex-7020 dbus[949]: [system] Failed to activate service 'org.bluez': timed out
May 6 07:34:01 steven-OptiPlex-7020 dbus[949]: [system] Failed to activate service 'org.bluez': timed out
May 6 07:34:03 steven-OptiPlex-7020 systemd-logind[1004]: Removed session c1.
May 6 07:34:04 steven-OptiPlex-7020 systemd: pam_unix(systemd-user:session): session closed for user lightdm
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: lightdm 1.18.1-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Fri May 6 08:00:07 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-02-06 (89 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
SourcePackage: lightdm
UpgradeStatus: Upgraded to xenial on 2016-04-21 (14 days ago)