Launcher got sticky and won't hide

[Teo]

Launcher has suddenly stopped hiding and showing automatically, it got "sticky" (i.e. always visible).
I'm pretty sure it will start working fine at the next reboot (or even just logout/in).

I think it is related to the following:
- I opened Firefox by clicking on its launcher icon
- Firefox somehow hanged;
-I couldn't move neither Firefox's window nor other windows (e.g. Chrome), however I could switch among tabs within Fifefox and within Chrome
- no program would respond to keyboard input, but mouse input seemed to work
- I closed Firefox by right-clicking on its launcher icon and selecting "quit"

=> then everything went back to normal, except that the Launcher now won't hide.

This may or not have been triggered by a bug in Firefox, but in both cases there's a bug in Launcher if it can, under any circumstance, "leak" its status or whatever determines its capacity to hide and show.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: unity 6.12.0-0ubuntu0.2
ProcVersionSignature: Ubuntu 3.5.0-22.34-generic 3.5.7.2
Uname: Linux 3.5.0-22-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu9
Architecture: i386
CompizPlugins: [core,composite,opengl,decor,vpswitch,mousepoll,compiztoolbox,snap,commands,place,resize,session,regex,grid,wall,move,gnomecompat,imgpng,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
Date: Sat Jan 19 17:41:08 2013
InstallationDate: Installed on 2010-06-23 (941 days ago)
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: Upgraded to quantal on 2013-01-13 (6 days ago)

[Omer Akram (om26er)]

Thanks for your bug report. It can be quite difficult to get to the root cause of this type of issues. If you see this issue again can you please observe deeply to see if there are any steps we could use to reproduce the bug.

[Teo (teo1978)]

There will probably never be a reproducible sequence of steps, yet the bug is there.
It would be more useful, I think, if you could tell me what log files to attach next time it happens, that could contain information about what's happening.

[Omer Akram (om26er)]

I am actually not really sure what logs could be required for such issue. I dont think there are any (help?)

[Launchpad Janitor (janitor)]

[Expired for Unity because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for unity (Ubuntu) because there has been no activity for 60 days.]

[Teo (teo1978)]

I don't know why this expired. There's no additional information I can provide and it could take ages until the day i will find a reproducible pattern.

It should be easier to review the code that controls the behavior of the launcher, and write it in such way that will ensure it will never, ever get sticky.

[Will Cooke (willcooke)]

Can't be reproduced. Sorry we can't help.