black surface in desktop shell fullscreen mode

zou lan nancy.lan.zou at
Wed Sep 30 01:35:18 PDT 2015

Hi all

As I known, when a window is fullscreen, desktop shell will create a black
surface after it. If the window is transparent later, it shows a black
screen. But the app developers maybe except it to be hide.

Just take QWindow function hide for example, app1 start app2, then app2
call hide, it excepts to show app1, but it shows the black surface of app2.

   - Does the desktop shell doesn't support set fullscreen surface to be
   - Thank you.

Best Regards
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