[Bug 41143] New: Multiple D3D applications hang up when switch from fullscreen mode to the desktop

https://bugs.winehq.org/show_bug.cgi?id=41143

Bug ID: 41143
           Summary: Multiple D3D applications hang up when switch from
                    fullscreen mode to the desktop
           Product: Wine
           Version: 1.9.16
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winex11.drv
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 55349
  --> https://bugs.winehq.org/attachment.cgi?id=55349
winex11 channel trace

Since some months now, when I tried to switch a game (which used the D3D API)
running in fullscreen mode to the desktop with Alt+Tab. The game freeze and the
screen remains black. I cannot even see the desktop at all. I had to kill the
process to be able to see it. This issue affects at least Heroes of the Storm
and Kingdom New Lands.

I made a log wit only the winex11 channel while running Kingdom New Lands. I
can make others logs, but ask me.

This issue begin to be very annoying due to the freeze. This has been tested on
Wine Staging, Wine and Wine Nightly.