I have found a simple fix at last. Set the compositor renderer to XRender by clicking your way through to the Compositer that sets it as follows: KDE Start button ==> Display and Monitor ==> Compositor
Now set the rendering backend to anything BUT NOT THE DEFAULT: (OpenGL 3.1, GLX) and NOT (OpenGL 2, GLX). All the other settings work. (Xrender) and (OpenGL 3.1, EGL) (OpenGL 2, EGL) I still hope this bug is fixed in the upgrade release of 18.04 LTS which has been promised for late July 2018. Today is 30 July 2018. There is still no release upgrade. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1781163 Title: okular has lost all functions on menus (not clickable) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/okular/+bug/1781163/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
