http://bugs.winehq.org/show_bug.cgi?id=31370
--- Comment #7 from Henri Verbeet hverbeet@gmail.com 2012-08-01 08:24:44 CDT --- (In reply to comment #6)
Yes, my initial bug report is really lucking in explanation because it was really late at night and I was in hurry to get some sleep. All problem arouse when you try to use "Emulate a virtual desktop" set to match your display resolution. Previously this wont try to display any decoration and behave as other windows, displaying tool-bar over it self. What now you can see in attached screen-shot of Darkspore. And one more thing, right after it switches in full-screen, program cannot redraw it's window for the first time, on screen-shot Darkspore is long launched but logon screen isn't shown, I need to minimize and then restore this "window" for game to start redraw it's screen.
So you're saying that on resolution changes to a resolution less than the screen size the virtual desktop acquires decorations, right? (I.e. this is essentially a duplicate of bug 31250.) That's how it's supposed to work, the virtual desktop should have the fullscreen state when its size matches the screen resolution, and decorations when it doesn't. If you want the virtual desktop window to never have decorations you should configure that in your window manager, bug 31250 has some instructions for Compiz, but in most window managers it's not very hard.