Look in /etc/X11/xdm/Xsetup /etc/X11/xdm/Xsetup_0 /etc/X11/xdm/Xreset /etc/X11/xdm/Xreset_0
Put something like xset -dpms xset s off in one or some or all of these files. -chris
Look in /etc/X11/xdm/Xsetup /etc/X11/xdm/Xsetup_0 /etc/X11/xdm/Xreset /etc/X11/xdm/Xreset_0
Put something like xset -dpms xset s off in one or some or all of these files. -chris