"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...

.pm