> Unfortunately, the software for [the low-power DCON mode] was never implemented. For what it's worth, I was the OLPC employee working the most on the softwar

> Unfortunately, the software for [the low-power DCON mode] was never implemented. For what it's worth, I was the OLPC employee working the most on the software for this, and it worked and shipped. I recall that there were serious hardware bugs that went unfixed until XO-1.5 and XO-1.75, but just those two models add up to millions of deployed laptops in the field that were using this CPU-off-screen-on mode when idle. If you've ever seen the power LED off or flashing on an XO while the screen is on, it was using this DCON mode.