Date: Mon, 29 Nov 2010 13:10:02 -0800 From: Doug Barton <dougb@FreeBSD.org> To: John Baldwin <jhb@freebsd.org> Cc: Adam Vande More <amvandemore@gmail.com>, freebsd-current@freebsd.org Subject: Re: Should green_saver.ko shut off a laptop's backlight? Message-ID: <4CF416AA.60502@FreeBSD.org> In-Reply-To: <201011291009.15466.jhb@freebsd.org> References: <4CF1A4DA.1080908@FreeBSD.org> <AANLkTikYehiu=UgLNCh7EEKUmcXj==YFMiu1T_pMP%2BYY@mail.gmail.com> <201011291009.15466.jhb@freebsd.org>
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This is a multi-part message in MIME format. --------------020604020809020104060100 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 11/29/2010 07:09, John Baldwin wrote: > On Saturday, November 27, 2010 11:30:56 pm Adam Vande More wrote: >> On Sat, Nov 27, 2010 at 6:39 PM, Doug Barton<dougb@freebsd.org> wrote: >> >>> My recollection is that green_saver should turn off an LCD backlight, but I >>> just loaded it up on my laptop and it's not doing so. It does remove the >>> text from the screen, but the backlight is still on (i.e., it is doing >>> exactly what blank_saver does). >>> >>> When running X DPMS works on that same laptop, so I know the hardware is >>> capable. This is 9-current amd64 at r214025. Any suggestions are welcome. >>> >> >> It's never worked for me either and this has been around awhile. >> >> http://www.freebsd.org/cgi/query-pr.cgi?pr=114928&cat= > > green_saver just ask's your video card's BIOS to shut the screen off. If the > BIOS doesn't turn off the backlight, that is the BIOS's problem, not > something we can fix. Ok, so does the attached seem reasonable? -- Nothin' ever doesn't change, but nothin' changes much. -- OK Go Breadth of IT experience, and depth of knowledge in the DNS. Yours for the right price. :) http://SupersetSolutions.com/ --------------020604020809020104060100 Content-Type: text/plain; name="splash.4.diff" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="splash.4.diff" Index: splash.4 =================================================================== --- splash.4 (revision 216062) +++ splash.4 (working copy) @@ -26,7 +26,7 @@ .\" .\" $FreeBSD$ .\" -.Dd April 7, 2010 +.Dd November 29, 2010 .Dt SPLASH 4 .Os .Sh NAME @@ -114,7 +114,12 @@ .It Pa fire_saver.ko A fire which becomes higher as load increases. .It Pa green_saver.ko -If the monitor supports power saving mode, it will be turned off. +The screen will be blanked, similar to +.Pa blank_saver.ko . +If the monitor and/or the video card's BIOS support it, +the screen will also be powered off. +The latter may not work with LCD monitors, +or monitors connected to a Digital Visual Interface (DVI) port. .It Pa logo_saver.ko Animated graphical .Fx --------------020604020809020104060100--
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