Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/gwibber/microblog/dispatcher.py", line 709, in handle_notify_item
    util.notify(sender_name, notify_text, image, 2000)
  File "/usr/lib/python2.7/dist-packages/gwibber/microblog/util/__init__.py", line 174, in notify
    return notification.show()
GError: Disconnection or out-of-memory