---- On Mon, 28 Mar 2016 19:06:00 +0530 Neal Becker <firstname.lastname@example.org>wrote ----
I am yet to see this fixed for Kontact. I have not seen any activity in the bug report. Best thing would be is to file bug reports as you encounter such problem.
I have also noticed system encountering sudden shutdown instead of suspend or hibernation as directed in the power management. This could also be a kernel problem. Screen brightness problems are often a kernel problem. One thing I am sure is that Chrome now has ability to inhibit power management which I think misbehaves from time to time.
Not even with Ctrl+Alt+L?
The config looks about right to me. Nothing out of ordinary. Maybe try setting up ~/.Xresources.