[Bug 39499] New: Crash to access another window while running in full screen

https://bugs.winehq.org/show_bug.cgi?id=39499

Bug ID: 39499
           Summary: Crash to access another window while running in full
                    screen
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: blocker
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

I am having the same problem described in the report #34428

I met this bug running League of Legends

While running in full screen, if I try to switch to another window out of the
game the image freezes and I lose control of the game, but still can hear the
sound of the game in progress. When this happens I am required to open a
terminal and kill the process.

This problem does not occur if I keep the wine using the system window manager
to control the window.

But when I do the wine keep using the system window manager, when the game ends
and the game returns from full-screen mode to windowed mode the wine does not
recover control of the keyboard.

I am using Ubuntu 15.10 and the latest version of the wine, but this problem
occurs in other versions of ubuntu and wine.
The debugging mode does not report an error.