Public bug reported:

What happens is that a window that I'm working in loses focus. And I'm
seeing it only in Lubuntu. I've also got Enlightenment (package e17)
installed, and when I login to that the bug goes away. This is why I
think it might be the fault of package lubuntu-desktop, but I could be
wrong.

Let me give you a more detailed description of what I'm seeing. I can
open a terminal (usually lxterminal) and I'll be able to type in it just
fine. But then if I su to root (note I've set a root password) then
focus is gone. I can get it back by clicking on the top of the terminal
window, though I might have to click several times. This part of the bug
(su to root) happens very consistently, every time. But the bug is
bigger than that.

I can have the Chromium browser open, and Libreoffice on another
desktop. I look up something on the Google web site, I go to cut & paste
it into Libreoffice, suddenly my Libreoffice is dead, can't type and
clicking on menu items is unresponsive. I go back to Chromium - it's
dead too, can't type anything on the search line, menu items also
unresponsive. Now of course something like that will always happen if
another program is grabbing focus - for example, if Apport wants to
report something or you get a message that updates are available. But
this loss of focus happens just randomly, even when nothing has popped
up. When it happens, I can sometimes get it back by shutting down one of
the apps (let us say Libreoffice, and then Chromium back to life). But
sometimes not. I might have to close all the apps I have running and
restart them to regain focus. Very frustrating, of course, when you're
trying to get work done.

I have four computers at my disposal. All four have Lubuntu installed.
I'm seeing the problem on all four machines. One is an ASUS eeePC
(32-bit processor, of course) but the other three all have the 64-bit
version of Lubuntu installed. I have Lubuntu 12.10-beta-1 installed on
one of the machines, the rest are Lubuntu 12.10.

Like I said, if I log out of Lubuntu desktop and log back in with
Enlightenment, this issue disappears.

One possibility does occur to be, that maybe one of my installed apps is
grabbing focus, though it seems unlikely. I do a lot of translation work
and have the Chinese language packs installed along with package "scim"
as an input method. But even when I kill scim, I still see the problem.

OK, hope this helps. Please ask me any questions if you have them.

cheers,
Roberto

** Affects: lubuntu-meta (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1051167

Title:
  Windows lose focus in Lubuntu 12.04 and 12.10-beta

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