Same issue on Ubuntu 18.04 LTS using Unity / lgihtdm / Compiz.
Every time I lock the screen, I have to "switch to greeter" as it shows.
So...Any solution to fix this now?
I'm not sure if the information below would help.

➜  ~ tail /var/log/auth.log

Dec 25 14:54:05 gadflysu-ubuntu lightdm: pam_unix(lightdm-greeter:session): 
session opened for user lightdm by (uid=0)
Dec 25 14:54:05 gadflysu-ubuntu systemd: pam_unix(systemd-user:session): 
session opened for user lightdm by (uid=0)
Dec 25 14:54:05 gadflysu-ubuntu systemd-logind[973]: New session c7 of user 
lightdm.
Dec 25 14:54:06 gadflysu-ubuntu lightdm: PAM unable to dlopen(pam_kwallet.so): 
/lib/security/pam_kwallet.so: cannot open shared object file: No such file or 
directory
Dec 25 14:54:06 gadflysu-ubuntu lightdm: PAM adding faulty module: 
pam_kwallet.so
Dec 25 14:54:06 gadflysu-ubuntu lightdm: PAM unable to dlopen(pam_kwallet5.so): 
/lib/security/pam_kwallet5.so: cannot open shared object file: No such file or 
directory
Dec 25 14:54:06 gadflysu-ubuntu lightdm: PAM adding faulty module: 
pam_kwallet5.so
Dec 25 14:54:06 gadflysu-ubuntu lightdm: pam_succeed_if(lightdm:auth): 
requirement "user ingroup nopasswdlogin" not met by user "gadflysu"
Dec 25 14:54:41 gadflysu-ubuntu systemd-logind[973]: Removed session c7.
Dec 25 14:54:41 gadflysu-ubuntu systemd: pam_unix(systemd-user:session): 
session closed for user lightdm

➜  ~ lightdm --show-config

   [Seat:*]
A  allow-guest=false
C  greeter-wrapper=/usr/lib/lightdm/lightdm-greeter-session
D  guest-wrapper=/usr/lib/lightdm/lightdm-guest-session
G  user-session=unity
F  greeter-session=unity-greeter
H  xserver-command=X -core
I  type=xlocal
I  display-setup-script=/sbin/prime-offload
I  display-stopped-script=/sbin/prime-switch

   [LightDM]
B  backup-logs=false

Sources:
A  /usr/share/lightdm/lightdm.conf.d/50-disable-guest.conf
B  /usr/share/lightdm/lightdm.conf.d/50-disable-log-backup.conf
C  /usr/share/lightdm/lightdm.conf.d/50-greeter-wrapper.conf
D  /usr/share/lightdm/lightdm.conf.d/50-guest-wrapper.conf
E  /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf
F  /usr/share/lightdm/lightdm.conf.d/50-unity-greeter.conf
G  /usr/share/lightdm/lightdm.conf.d/50-unity.conf
H  /usr/share/lightdm/lightdm.conf.d/50-xserver-command.conf
I  /usr/share/lightdm/lightdm.conf.d/90-nvidia.conf

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1733557

Title:
  Login screen showing Authentication Failure Switch to greeter...

To manage notifications about this bug go to:
https://bugs.launchpad.net/unity/+bug/1733557/+subscriptions

-- 
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to