File wdm-1.28-pam.patch of Package wdm
Use /etc/pam.d/xdm
================================================================================
--- src/wdm/verify.c
+++ src/wdm/verify.c
@@ -446,7 +446,7 @@
if (pam_error != PAM_SUCCESS) goto pam_failed;
PAM_password = greet->password;
- pam_error = pam_start("wdm", greet->name, &PAM_conversation, pamhp);
+ pam_error = pam_start("xdm", greet->name, &PAM_conversation, pamhp);
PAM_BAIL;
pam_error = pam_set_item(*pamhp, PAM_TTY, d->name);
PAM_BAIL;