From: Gabriel Ivăncescu <gabrielopcode(a)gmail.com> It was incorrect, sorry about that. The issue was weirder in a different place (MWM_FUNC_RESIZE not set before setting fullscreen). I added a comment to clarify it for the future. Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56149 Signed-off-by: Gabriel Ivăncescu <gabrielopcode(a)gmail.com> --- dlls/winex11.drv/desktop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/dlls/winex11.drv/desktop.c b/dlls/winex11.drv/desktop.c index fcb6ba2faf5..12c565c3f2e 100644 --- a/dlls/winex11.drv/desktop.c +++ b/dlls/winex11.drv/desktop.c @@ -107,7 +107,7 @@ static void update_desktop_fullscreen( unsigned int width, unsigned int height) if (!display || !is_virtual_desktop()) return; xev.xclient.type = ClientMessage; - xev.xclient.window = DefaultRootWindow(display); + xev.xclient.window = root_window; /* virtual desktop */ xev.xclient.message_type = x11drv_atom(_NET_WM_STATE); xev.xclient.serial = 0; xev.xclient.display = display; -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/4810