[arch-general] fluxbox with dbus session freezes.

[宋文武]

I have openbox frozen randomly, maybe the same:
  * application need dbus will report unable to find session(kmix etc)
  * openbox do not response to keybings any more
  * in the console, with export DISPLAY=:0, run xterm, no error report
    but no terminal window appreal in X

I use exec ck-launch-session openbox, openbox-xdg-autostart to load
ibus,kmix etc