https://bugs.kde.org/show_bug.cgi?id=379796
--- Comment #4 from NiO <arco...@gmail.com> --- I wanted to chime back in about this. I decided for no particular reason that I wanted to reformat my system and start a clean install of Neon. I ran into this issue again after a fresh install.. so it may be worth looking into. I installed Neon (neon-useredition-20170518-1018-amd64.iso), started it up for the first time with nomodeset in Grub (black screen on boot otherwise), and the first thing I did was new install Nvidia proprietary drivers 378.13 from the ppa (ppa:graphics-drivers/ppa). After install, I went to reboot from the launcher and ksmserver-logout-greeter immediately crashed. I had to reboot from the terminal. It seems that installing a driver update changes something that greeter doesn't expect to change, so it spazzes out. But then it's fine after rebooting (presumably when greeter reinitializes with the new changes). I think there is still some kind of exception handling that needs to be put into place to catch this. System info: ASRock H270M-ITX/ac, i7-6700k, GTX 970 Neon installed with encrypted home directory. -- You are receiving this mail because: You are watching all bug changes.