ksmserver-logout-greeter crach when logout from kde plasma session with nvidia.375.10. https://devtalk.nvidia.com/default/topic/972736/some-applications-crash-on-exit-with-nvidia-375-10/ https://devtalk.nvidia.com/default/topic/973013/linux/libegl-so-1-libegl-so-375-10-difference-not-in-release-notes-docs/ downgrading to nvidia 370 serie solves the problem.