Comment 13 for bug 137247

I have the same problem, two dialogs on autologin, zero without autologin.
libpam_keyring (or whatever it's called, we're all talking about the same...) works if I don't use autologin.
I guess the problem is that if no password is entered, the keyring cannot be opened. That's why gdm needs to get a password.
The two dialog problem, comes from the fact that a second keyring called "login" is created, if you choose to have it opened at login (see the first dialog box). This "login" keyring, opens the "default" keyring (or something like that), which in turn holds your keys for NM. If no password is provided (autologin), the "login" keyring is not opened, and neither is "default". I guess it's a bug that "login" doesn't open "default" if it's provided with the password.

But the behavior is more or less understandable...

./Troels