{ pkgs, lib, config, ... }: { options = { desktopConfig.desktopEnvironments.gnome.fprintdFix.enable = lib.mkEnableOption "Fixes fprintd and pam issues with GNOME Display Manager."; }; config = lib.mkIf config.desktopConfig.desktopEnvironments.gnome.fprintdFix.enable { # Need to change the order pam loads its modules # to get proper fingerprint behavior on GDM and the lockscreen. security.pam.services.login.fprintAuth = false; security.pam.services.gdm-fingerprint = lib.mkIf (config.services.fprintd.enable) { text = '' auth required pam_shells.so auth requisite pam_nologin.so auth requisite pam_faillock.so preauth auth required ${pkgs.fprintd}/lib/security/pam_fprintd.so auth optional pam_permit.so auth required pam_env.so auth [success=ok default=1] ${pkgs.gnome.gdm}/lib/security/pam_gdm.so auth optional ${pkgs.gnome.gnome-keyring}/lib/security/pam_gnome_keyring.so account include login password required pam_deny.so session include login session optional ${pkgs.gnome.gnome-keyring}/lib/security/pam_gnome_keyring.so auto_start ''; }; }; }