Re: Partial frame synchronization TODO

This all sounds fantastic, but I have a stupid question:

On Thursday, October 4, 2012, Owen Taylor wrote:
* When there is a frame where no painting ends up being done, we still
  at the moment are sending increments to the frame serial and waiting
  for_NET_WM_FRAME_DONE. It may be worth tracking when we are about to
  damage a toplevel window (by drawing or configuring it) and only at
  that point start a frame. Then we'll avoid asking the compositor to
  tell us when it's done painting a frame that involves no painting.
Does this mean we have a busy idle? Does this have implications for laptop battery life? 


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