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[Bug 1100456] Re: Every screen change triggers full screen XDamage event

To: compiz@xxxxxxxxxxxxxxxxxxx
From: Daniel van Vugt <daniel.van.vugt@xxxxxxxxxxxxx>
Date: Thu, 17 Jan 2013 23:45:36 -0000
Reply-to: Bug 1100456 <1100456@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

I can't see any bug in your test program right now. But I also can't
explain it.

If the root window was constantly getting damaged though, Show Repaint
would be flashing the whole screen and Compiz' CPU would be higher.

I see two possible explanations:
 1. A bug in your program (which I can't see)
 2. Compiz is choosing to ignore damage to the root window (which I doubt, because it does smoothly respond to root window redraws)

Both seem quite unlikely. Maybe there's a third explanation... ?

** Project changed: unity => compiz

** Also affects: compiz (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1100456

Title:
  Every screen change triggers full screen XDamage event

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