[Bug 438868] Re: Numerous applications have focus issues after emerging from a screensaver or suspend

[EA]

Still happens in Ubuntu 12.04 (and 11.04) for me, triggered whenever I
window-shade for example Thunderbird or Firefox. Minimizing and
restoring the window helps. According to other messages here,
screensaver and thus standby also always triggers it. I also confirm
that focusing another window for a moment helps.

The symptom of the bug is that in Firefox URL autocompletion, the list
of suggestions immediately vanishes when it is about to show up and that
all sorts of menus vanish at the moment when I try to move the mouse
over them. For example I click on FILE, a menu shows up, I move the
mouse to the menu, it vanishes. VERY frustrating. Sometimes using
hotkeys helps, but by far not everything works without mouse.  According
to this bug discussion, the problem might be the Z window stacking of
compiz messing up and getting fixed by being reset using the minimize-
restore or focus-something-else workarounds.

This might also be related to:
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/968332

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https://bugs.launchpad.net/bugs/438868

Title:
  Numerous applications have focus issues after emerging from a
  screensaver or suspend

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