Enter Password for Default Keyring to Unlock

You might want to start by telling us where you see these requests for passwords. Passwords are asked for when root privileges are needed.

Thank you for your answer. I get these requests on startup, when ubuntu finishes loading.
Any ideas?
Any hep will be appreciated.

Thank you for the answer.
In auth.log I can see this reagrding to my current session:

Jan  2 14:42:47 josep-laptop gdm-session-worker[1343]: pam_unix(gdm-autologin:session): session opened for user josep by (uid=0)
Jan  2 14:42:47 josep-laptop gdm-session-worker[1343]: pam_ck_connector(gdm-autologin:session): nox11 mode, ignoring PAM_TTY :0
Jan  2 14:42:50 josep-laptop pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Jan  2 14:42:50 josep-laptop pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Jan  2 14:42:50 josep-laptop pkexec[1492]: josep: Executing command [USER=root] [TTY=unknown] [CWD=/home/josep] [COMMAND=/usr/sbin/gnome-power-backlight-helper --set-brightness 7]
Jan  2 14:42:50 josep-laptop polkitd(authority=local): Registered Authentication Agent for session /org/freedesktop/ConsoleKit/Session1 (system bus name :1.25 [/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.utf8)
Jan  2 14:42:51 josep-laptop dbus-daemon: [system] Rejected send message, 1 matched rules; type="method_return", sender=":1.11" (uid=0 pid=1229 comm="/usr/sbin/bluetoothd) interface="(unset)" member="(unset)" error name="(unset)" requested_reply=0 destination=":1.30" (uid=1000 pid=1512 comm="bluetooth-applet))
Jan  2 14:42:52 josep-laptop dbus-daemon: [system] Rejected send message, 2 matched rules; type="method_call", sender=":1.39" (uid=1000 pid=1503 comm="nautilus) interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply=0 destination=":1.6" (uid=0 pid=950 comm="/usr/sbin/console-kit-daemon))
Jan  2 14:42:54 josep-laptop gnome-keyring-daemon[1402]: unsupported key algorithm in certificate: 1.2.840.10045.2.1
Jan  2 14:42:55 josep-laptop gnome-keyring-daemon[1402]: unsupported key algorithm in certificate: 1.2.840.10045.2.1
 

However I don't figure out what applications are asking me for the password. It seems to me that nautilus is asking for the password but I don't use it so I'm not totally sure.
Can you tell me what applications are asking me for the password to unlock the keyring?

Thank you in advance

It looks like gnome-keyring executes after the system runs the dbus-daemon. From the log, dbus is attempting to connect to something and the session is being rejected. Then thats when keyring executes. Did you configure dbus for something.s?
I think you are connecting to something using bluetooth. What is it?

Thank you very much.
I don't use bluetooth but it was connected. I've disabled bliuetooth (I've disconnected de device) but I still get a prompt at startup.
Now I get this on the log:

Jan  2 21:55:07 josep-laptop gdm-session-worker[1303]: pam_unix(gdm-autologin:session): session opened for user josep by (uid=0)
Jan  2 21:55:07 josep-laptop gdm-session-worker[1303]: pam_ck_connector(gdm-autologin:session): nox11 mode, ignoring PAM_TTY :0
Jan  2 21:55:10 josep-laptop polkitd(authority=local): Registered Authentication Agent for session /org/freedesktop/ConsoleKit/Session1 (system bus name :1.23 [/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.utf8)
Jan  2 21:55:10 josep-laptop pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Jan  2 21:55:10 josep-laptop pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Jan  2 21:55:10 josep-laptop pkexec[1540]: josep: Executing command [USER=root] [TTY=unknown] [CWD=/home/josep] [COMMAND=/usr/sbin/gnome-power-backlight-helper --set-brightness 7]
Jan  2 21:55:12 josep-laptop dbus-daemon: [system] Rejected send message, 2 matched rules; type="method_call", sender=":1.32" (uid=1000 pid=1520 comm="nautilus) interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply=0 destination=":1.8" (uid=0 pid=1023 comm="/usr/sbin/console-kit-daemon))
Jan  2 21:55:14 josep-laptop gnome-keyring-daemon[1433]: unsupported key algorithm in certificate: 1.2.840.10045.2.1

Any ideas?

Thank you.

Yes, your are encrypting your profile. Since you are using gnome, go to systems>preferences> startup windows. Once in the dialog box, de-select gnome-keyring from running during startup.

Thank you!
However I've deselected it and there is still a message for unlocking keyring at startup :unsure:

Any ideas?

Hi,
I'm sorry for the delay. I've been very busy these days.
I've finally came across the same problem. Thank you for your ideas.
I got rid of this problem two ways. First, Playing under "Users and Groups" and secondly deleting some of the password (mainly that were saved in Empathy) entries from "Passwords and Encryption Keys". I may not remember all the details, but now although I have my root/user passwords intact, I don't have that annoying "Default" password notification at boot up.