https://bugs.kde.org/show_bug.cgi?id=369515
--- Comment #1 from Richard Parkins <aleph0hpela-k...@yahoo.co.uk> --- This was on the first reboot after installing the upgrade. Since then I've switched off my computer and rebooted it again. Now I can launch the applications that I couldn't launch before. This of course does not necessarily mean that the problem has gone away altogether, merely that it doesn't appear every time the system is booted up, or it may be specific to the upgrade process. I don't know how to check exactly what the upgrade installed, but I presume there is a log somewhere. If you can tell me where it is, I'll attach it. In case you ask about my hardware configuration (the bug submit form didn't) it's a Dell Precision M4800 with 16GB of memory 750Gb hard drive, and factory installed Ubuntu. I think they didn't install Kubuntu: I did that myself. I run it connected to the docking station with the lid closed and external mouse, keyboard, and monitor. The monitor is an AOC U2868PQU 28 Inch Ultra HD 4K, connected directly to the DP port on the laptop (it doesn't work well if connected through the docking station). I'm using NVIDIA drivers. -- You are receiving this mail because: You are watching all bug changes.