On Thu, 2005-01-27 at 17:08 -0500, Perry E. Metzger wrote:
> "Jared D. McNeill" <jmcneill@invisible.ca> writes:
> > Not sure what display adapter you have, but with my d600 I need to use
> > pkgsrc/sysutils/radeontool to toggle my backlight when I enter and leave
> > S1 sleep.
> 
> I seem to recall that the ACPI spec has methods you can invoke to turn
> on and off the display. You might want to look at them...

You can query devices attached (CRT/LCD/DVI/TV), set the devices to use
at POST time, but as far as I could tell from the ACPI 2.0c spec there
was no way to actually cause the display adapter to reset itself.

Cheers,
Jared