Comment 81 for bug 988079

With 5.16.0-0ubuntu1 there is a visual regression may be related to this bug fix. Windowed GL-Applications like SuperTux 2 or glxgears stay always on top, even over the dash. The window decoration is hidden, but the window content stays above all other windows and the dash. When the window is draged, only the decoration moves - the content is displayed at the original position until the movement ends (mouse button released).