Turning off screen completely
oberman at es.net
Fri Oct 22 09:03:16 PDT 2004
> 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
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
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