tech-kern: how to turn off display? (wsdisplay0 at vesafb0)

Subject: how to turn off display? (wsdisplay0 at vesafb0)
To: None <tech-kern@netbsd.org>
From: Jeremy C. Reed <reed@reedmedia.net>
List: tech-kern
Date: 07/31/2006 22:28:25

Can someone point me to a tool or code for turning off a display or 
powering down a laptop screen?

I am using NetBSD/i386 3.99.21 with:
  wsdisplay0 at vesafb0 kbdmux 1: console (fb, vt100 emulation)

And Xorg's wsfb(4) driver.

Thanks,

Jeremy C. Reed