Ubuntu 14.04 LTS desktop can't login via GUI

[I Jun, Yu]

 Hi Team
   I upgraded my Ubuntu Desktop from 12.04 to 14.04 but I always block in login session via GUI. I can log in terminal. I checked the auth.log and found gnome-keyring-daemon shows "failed to unlock login keyring on startup". I did follow approach but still can't log in via GUI. Would you give me some advice.

[Tried Approach]
1. Reinstall gnome-keyring.
    - Result : Still can't log in
2. sudo chown -R $USER:$USER $HOME
   - Result : Still can't log in
3. sudo update-manager -d
    -Result :
      error: XDG_RUNTIME_DIR not set in the environment.
      (update-manager:3835): Gtk-WARNING **: cannot open display:

[Auth.log]
Jun 1 11:20:58 ubuntu sshd[2445]: Accepted password for ijunyu from 192.168.153.1 port 52781 ssh2
Jun 1 11:24:41 ubuntu gnome-keyring-daemon[2540]: failed to unlock login keyring on startup
Jun 1 11:24:41 ubuntu gnome-keyring-daemon[2540]: couldn't set environment variable in session: The name org.gnome.SessionManager was not provided by any .service files

Description: Ubuntu 14.04.2 LTS
Release: 14.04

[I Jun, Yu (ooduckoo)]

Hi Team
    Does anyone can give me some advices?

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.