Turning off screen completely

[Kevin Oberman]

> Date: Thu, 21 Oct 2004 09:51:57 -0700
> From: Bruce M Simpson <bms at spc.org>
> Sender: owner-freebsd-mobile at freebsd.org
> 
> On Thu, Oct 21, 2004 at 12:54:26PM +0200, Jochen Gensch wrote:
> > Doesn't work here. I can run a xset dpms force standby, suspend... the 
> > back light always stays on. I'm curious, what is the technical 
> > background to this? Who / what controls this behaviour? BTW: what is 
> > that radeon.ko module needed for? I thought X.org uses its own driver?
> 
> 'xset dpms force standby' causes my T40 to turn off the backlight.
> It did not do this when I had XFree86 4.2.0 installed previously.

Odd. My T30 blanks the display, but the backlight is still on. I have
only been able to turn it off with the VGA DPMS stuff, not Xorg or
XFree86. 

For the record, my system is Beta-7 dated Oct. 12, so it's pretty
close. This may be a bios configuration issue or some difference between
the T30 and the T40 even though both use Radeons.
-- 
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman at es.net			Phone: +1 510 486-8634