Background information 35
When you leave the computer idle for a longer period, the imaging
board now delivers horizontal sync only. As a result, the display's
micro controller switches off a number of internal circuits. The power
consumption has now dropped with about 42 %.
At last, the imaging board delivers no sync signals at all, and the
micro-controller switches off all but one power supplies in the display.
Only the micro-controller's own supply keeps on running, resulting in
a very low power consumption of 6 W.
If you start using the computer again, the imaging board switches on
both sync signals, and the micro-controller switches on the display.
The times after which the different steps of power management must
become active, is set in the PC's display properties.
