Hey,
as any of you maybe used the A20 as desktop, you maybe saw that, when let 30 min alone, the screen faded to black, and could not be activated again without a reboot (it's not hibernation, we can do it through SSH).
It's not annoying at all for servers, but here, I have no other clue than disable DPMS totaly.
Any one would have a fix/workaround to have powersaving AND a way to resume it without having to reboot ?
Try adding these lines to /etc/X11/xorg.conf (create it if it does not exist):
Section "ServerFlags"
Option "BlankTime" "0"
Option "StandbyTime" "0"
Option "SuspendTime" "0"
Option "OffTime" "0"
EndSection