I'm running Arch Linux and since a recent update I am automatically logged out of GNOME and all running processes are terminated (not screen lock, really logged out of my session).
After some more time, the computer suspends, which I solved according to this post:
Computer suspends when not logged in
But this does not really solve the original problem of getting logged out.
What setting do I have to tweak to prevent GNOME from logging me out after inactivity?