Hi,
I compile the QT4.7.1 demo browser with DirectFB 1.4.1,and when I enter the browser(loading a simple html page) I found that QT requests for createSurface operation ceaselessly even when the browser is minimized.Don't know why.
My directfbrc file:
Qt Code: 
  1. system=bcmnexus
  2. madv-remove
  3. res=720p
  4. no-cursor
  5. depth=32
  6. pixelformat=ARGB
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Any help is appreciated.