Date: Thu, 21 Oct 2004 09:53:40 -0500 From: Eric Kjeldergaard <kjelderg@gmail.com> To: Jochen Gensch <incmc@gmx.de> Cc: freebsd-mobile@freebsd.org Subject: Re: Turning off screen completely Message-ID: <d9175cad04102107531daac939@mail.gmail.com> In-Reply-To: <41779562.8020303@gmx.de> References: <4176DECC.70606@gmx.de> <20041021011752.GE10871@empiric.icir.org> <41779562.8020303@gmx.de>
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On Thu, 21 Oct 2004 12:54:26 +0200, Jochen Gensch <incmc@gmx.de> wrote: > Bruce M Simpson wrote: > > > I have noticed that DPMS > > standby seems to turn off the backlight on my T40 whilst screensavers > > are running. > > 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? There are 2 major factors that are involved. One is a driver from X. This driver is at the root of (almost) all display issues that people commonly write about. The other driver is a kernel driver for FreeBSD. This driver is used for many things often including power management and direct access. The relationship is not near this simple, IRL. It seems that I did see a mailing list submission and even a kernel patch, IIRC. Perhaps more googling (I know I'm not being much help in that part) could root out that message. I'll send it to you if I see it again. -- If I write a signature, my emails will appear more personalised.
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