Arch Linux

darleschickens

Member

Registered: 2024-02-17

Posts: 1

Authentication failure on GUI applications after installing fprintd

After installing fprintd and following the wiki's instructions, any GUI-based authentication always fails. For example,

systemctl disable sddm.service

which launches a graphical interface, always gives an "authentication failure"
Similarly, trying to change privileged settings in cinnamon-settings, I get the same error. When I run

sudo cinnamon-settings

and click on "users and groups," it gives the error

pam_open_session() failed: Cannot make/remove an entry for the specified session

My system-auth is

[user@arch-laptop pam.d]$ cat system-auth
#%PAM-1.0

auth       required                    pam_faillock.so      preauth
# Optionally use requisite above if you do not want to prompt for the password
# on locked accounts.
-auth      [success=2 default=ignore]  pam_systemd_home.so
auth       [success=1 default=bad]     pam_unix.so          try_first_pass nullok
auth       [default=die]               pam_faillock.so      authfail
auth       optional                    pam_permit.so
auth       required                    pam_env.so
auth       required                    pam_faillock.so      authsucc
# If you drop the above call to pam_faillock.so the lock will be done also
# on non-consecutive authentication failures.

-account   [success=1 default=ignore]  pam_systemd_home.so
account    required                    pam_unix.so
account    optional                    pam_permit.so
account    required                    pam_time.so

-password  [success=1 default=ignore]  pam_systemd_home.so
password   required                    pam_unix.so          try_first_pass nullok shadow
password   optional                    pam_permit.so

-session   optional                    pam_systemd_home.so
session    required                    pam_limits.so
session    required                    pam_unix.so
session    optional                    pam_permit.so

and my polkit-1 is

[user@arch-laptop pam.d]$ cat polkit-1 
auth		sufficient  	pam_unix.so try_first_pass likeauth nullok
auth		sufficient  	pam_fprintd.so

I am on cinnamon (x11.) Please tell me if I have missed anything or have not included any neccesary files. Thank you.