Date: Mon, 29 Nov 2010 13:37:19 -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: <4CF41D0F.9060002@FreeBSD.org> In-Reply-To: <201011291614.17180.jhb@freebsd.org> References: <4CF1A4DA.1080908@FreeBSD.org> <201011291009.15466.jhb@freebsd.org> <4CF416AA.60502@FreeBSD.org> <201011291614.17180.jhb@freebsd.org>
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On 11/29/2010 13:14, John Baldwin wrote: > On Monday, November 29, 2010 4:10:02 pm Doug Barton wrote: >> 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? > > I would say 'If the monitor and the video card's BIOS support it' because > both things have to be true for green_saver to work. and/or implies that > only one has to be true. I'm not sure the second paragraph is truly needed > since I've seen it work fine with LCD's on other laptops and other external > monitors as well. I think simply adding the text about the video card's > BIOS is sufficient (and a definite improvement). Ok, done in r216065, thanks. I will update the PR soon'ish. Doug -- 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/
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