Its just wonderful to have a raspberry pi as a plan9 terminal, but the energy saving of the pi is outweighed by the monitor I use.
The Pi's display code blanks the screen after a while but this does not shutdown the monitor. I dug a little and it seems I need to send CEC (Consumer Electronics Control) messages over HDMI - Via a Pi GPU entrypoint. Porting libcec looks a little painful especially as I only need to be able to send two messages (turn on and turn off). Anyone know anything about this stuff? is CEC what I need or is there some other (simpler) way? -Steve
