I am using i3 on Fedora 22, without a DM.The way I run it is with:exec i3in my /etc/X11/xinitrc-common file, and:if [ -z $DISPLAY -a $XDG_VTNR -eq 1 ]; then       startxfiin ~/.bash_profile.My screen goes blank after 5 minutes of inactivity, for example when I am watching a movie and don't input anything. I need to touch my mouse or keyboard to wake it back up.Without a display manager I'm not sure where this behavior is coming from, so that I could turn it off.Thanks in advance for the help.editI discovered and turned off DPMS with no effect:DPMS (Energy Star):  Standby: 0    Suspend: 0    Off: 0  DPMS is Disabled
i3 screen goes blank after 5 min inactivity
fedora;screen lock;i3
I got it. I was close with the DPMS thing - I also had to turn off xset screensaver. I put the following script in my xinitrc.d:#!/bin/bashxset dpms 0 0 0xset -dpmsxset s offsetterm -balnk 0