Public bug reported:

After leaving the desktop alone some hours, I came back with
launcher/dash completely broken. In the meantime VirtualBox did a reboot
on a windows virtual machine which broke with the keyboard grabbed ---
it happens sometime, clicking the right-ctrl key returns the keyboard to
normal.

But after that unity/launcher/dash was completely unfucntional: 
- dash  popped up at any mouse click, even if on a focused window (note: I have 
focus-follow-mouse policy)
- launcher did autohide-show but was completely empty (see screenshot)

I tried various thing to recover: 
1) unity --replace (no effect)
2) toggling NumLock (no effect)
3) log out-log in (no effect! so it must be some daemon - right?)
4) reboot - ok, I have my Unity back.

I have apport enabled, and in /var/crash I have:

_usr_bin_dconf.0.crash
_usr_lib_policykit-1-gnome_polkit-gnome-authentication-agent-1.1153.crash
_usr_lib_tracker_tracker-extract.1153.crash

Could be any of this related?

** Affects: unity (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/802864

Title:
  Launcher went completely blank and dash appeating on every click ---
  reboot needed

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