https://bugs.winehq.org/show_bug.cgi?id=37765 --- Comment #5 from Stefan Dösinger <stefan(a)codeweavers.com> --- Metacity and the window managers forked from it break when XIconifyWindow is called on a window that does not set MWM_FUNC_MINIMIZE. I have reported the issue to Marco (https://github.com/mate-desktop/marco/issues/166). Mutter in Gnome Shell seems to have so many issues with fullscreen handling (the window doesn't even show up for me) that I don't know where to start reporting bugs :-\ . Since 45d530461bf29c953f5f4532cc0e917b4c4fc296 wined3d minimizes the game window on focus loss like windows does. This probably caused your problems. -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.