Since I upgraded my system from 9.2.3 its behaving differently. By default I leave it running all the time. Now it goes to sleep after not being used for some time, I'm not sure how long. One of the results is that the TV guide info isn't available to a web server I run on a raspberry pi (a camera pi that runs 24x7), so I have to go wake up the PVR box.
The settings in the power management are
Display to sleep: off
Shutdown timer: off
Shutdown function: shutdown
Max wait: off
Try to wake: on
FWIW I would be ok with the box sleeping between certain configurable times but prefer it doesn't do so without "permission".
