It seems that all the people experiencing this bug are using one of the
open-source drivers, either ati or intel (or i810).  The free drivers do
not yet do redirected-direct-rendering, so apps using 3d (such as google
earth) interact badly with Compiz.  The app using 3d (google earth, in
this case) won't be composited correctly; it will simply draw straight
to the screen, rather than drawing to an offscreen buffer that Compiz
can then combine with the other windows & draw to the screen.

Marking this as WontFix: it's certainly a bug, but it's (a) not a bug in
Compiz - it's a limitation of the graphics drivers, and (b) the
extensive effort required to fix the drivers is not going to be done in
Ubuntu - it'll be done upstream by the Xorg developers.

If anyone can duplicate this using non-free drivers (nvidia) or with
google earth running in Xgl (and *not* on the underlying :0 X server)
please reopen this bug.

** Changed in: compiz (Ubuntu)
   Importance: Undecided => Medium
       Status: Confirmed => Won't Fix

-- 
Google-earth display problems with Compiz
https://bugs.launchpad.net/bugs/162541
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