https://bugs.kde.org/show_bug.cgi?id=361500
--- Comment #11 from Thomas Lübking <thomas.luebk...@gmail.com> --- You get tearing because the vsync strategy is "only when cheap" and your driver doesn't support GLX_EXT_buffer_age (the client extention entry doesn't count ;-) => "kcmshell5 kwincompositing", the tearing prevention to full scene repaints. You may also be better off with the EGL backend (but I'm not sure whether buffer_age will be supported there, check eglinfo) -- You are receiving this mail because: You are watching all bug changes.