I am randomly getting logged out on Ubuntu-Gnome 15.10, while in mid of some work. It takes me back to login screen. It mostly happens when I am using Chrome browser, but I am not sure on whether there is any causality there.
It used to work fine when using Ubuntu-Gnome 15.04 and 14.04.
Also this is a clean install of Ubuntu-Gnome, and all packages and kernel are updated.
I am losing a lot of work in between.