https://bugs.kde.org/show_bug.cgi?id=382383
--- Comment #1 from Martin Flöser <mgraess...@kde.org> --- As a workaround use the breeze window decoration. This looks very much like an OpenGL driver issue. Please verify that your driver is properly installed. You can attach an output of glxinfo. -- You are receiving this mail because: You are watching all bug changes.