More advanced power savings (rev. the DPMS extension).

[Jim Gettys]

> Thats is a confusing thing.  In fact if the frame buffer is powered 
> down, the screen will be
> undefined.  i.e. not working.

This isn't true, and I'll give two counter examples:
   o E-Ink displays.
   o Our DCON driven display.

And there are other technologies being looked at that may make the
display able to be "live", which any ability to modify the image is
turned off.
                    - Jim

-- 
Jim Gettys
One Laptop Per Child