I should start off by saying I am fairly new to Linux. I want my pi to scroll through pictures in Image Viewer and never sleep. I've followed these instructions from another question to try to fix the sleeping problem.
apt-get install x11-xserver-utils Now open up your ~/.xinitrc file (if you don't have one then create it) and enter this: xset s off # don't activate screensaver xset -dpms # disable DPMS (Energy Star) features. xset s noblank # don't blank the video device exec /etc/alternatives/x-session-manager # start lxde
I didn't have the .xinitrc file in my home directory so I created one. It hasn't seemed to make a difference. I also have a .Xauthority file in /home/pi and have tried renaming it but it creates a new .Xauthority file.