Date: Wed, 28 Jan 2004 20:14:44 -0500 From: Josh Elsasser <jre@vineyard.net> To: Taku YAMAMOTO <taku@cent.saitama-u.ac.jp> Cc: freebsd-current@freebsd.org Subject: Re: API to turn off the display Message-ID: <20040129011443.GA55901@jade.elsasser.org> In-Reply-To: <20040129060727.619f3866.taku@cent.saitama-u.ac.jp> References: <200401272247.59306.freebsd-current@webteckies.org> <20040128.083215.114732225.imp@bsdimp.com> <20040128181110.GC775@laptop.lambertfam.org> <200401281319.02208.jhb@FreeBSD.org> <20040129060727.619f3866.taku@cent.saitama-u.ac.jp>
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On Thu, Jan 29, 2004 at 06:07:27AM +0900, Taku YAMAMOTO wrote: > I wrote a driver that handles what John told. > > http://access.cent.saitama-u.ac.jp/~taku/freebsd/acpi_vid-20031013.tar.gz > MD5 (acpi_vid-20031013.tar.gz) = adbfa6931e505544fb784e00c7b974e7 > > This driver uses ACPI video extension to control display switching and > backlight brightness. So working ACPI is a requisition for this driver. > > Whether it does or does not work depends heavily on how well the BIOS written, > however, I hope it worth trying. > > Suggestions, working/not-working reports etc are very appreciated. > > Sincerely, > taku > -- > -|-__ YAMAMOTO, Taku <taku@cent.saitama-u.ac.jp> > | __ < I get this output when I load the driver: acpi_vid0: <ACPI video extension> port 0x530-0x537 on acpi0 found TV(200), detectable by BIOS, head #0 The only sysctl I get is hw.acpi.video.tv0.active, which was set to 1. When I set it to 0, the display powers off. I can't seem to set the sysctl back to 1, so cannot turn the display back on. Note that on resume from S3 sleep, my display will also not power on, and I have to set hw.acpi.reset_video=0 in /boot/loader.conf or I will hang on resume. This machine is a Sony Vaio FX200 running -CURRENT from a few weeks ago, and has VGA and a tv-out ports. I suspect my BIOS is quite broken, as I have had endless issues with IRQ routing, USB, PCMCIA, and ACPI. I have made my ASL and DSDT available here: http://www.elsasser.org/vaio.asl http://www.elsasser.org/vaio.dsdt I am primarily interested in a way to power on my display after resume, but it would be nice to be able to use the VGA and tv-out ports as well. Thanks for any help you may be able to provide. -jre
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