https://bugs.kde.org/show_bug.cgi?id=443708
--- Comment #20 from MikeC <mike.cloa...@gmail.com> --- By the way on the two machines where there was no problem logging in after the update that section of the kwinrc file has only the lines: [Compositing] GLCore=true OpenGLIsUnsafe=false So perhaps removing all other lines in that section, but leaving those two will be enough. When I have had a chance to do that in a couple of days I will report back to say whether that alone is enough to allow normal login to the graphical desktop again. -- You are receiving this mail because: You are watching all bug changes.