Date: Wed, 28 Jan 2004 20:00:08 -0500 From: Anish Mistry <mistry.7@osu.edu> To: Taku YAMAMOTO <taku@cent.saitama-u.ac.jp> Cc: acpi-jp@jp.FreeBSD.org Subject: Re: API to turn off the display Message-ID: <200401282000.15594.mistry.7@osu.edu> In-Reply-To: <20040129060727.619f3866.taku@cent.saitama-u.ac.jp> References: <200401272247.59306.freebsd-current@webteckies.org> <200401281319.02208.jhb@FreeBSD.org> <20040129060727.619f3866.taku@cent.saitama-u.ac.jp>
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--Boundary-02=_fsFGALgIFfob3sA Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Description: signed data Content-Disposition: inline On Wednesday 28 January 2004 04:07 pm, Taku YAMAMOTO wrote: =2E.. >=20 > I wrote a driver that handles what John told. >=20 > http://access.cent.saitama-u.ac.jp/~taku/freebsd/acpi_vid-20031013.tar.gz > MD5 (acpi_vid-20031013.tar.gz) =3D adbfa6931e505544fb784e00c7b974e7 >=20 > This driver uses ACPI video extension to control display switching and > backlight brightness. So working ACPI is a requisition for this driver. >=20 > Whether it does or does not work depends heavily on how well the BIOS=20 written, > however, I hope it worth trying. >=20 > Suggestions, working/not-working reports etc are very appreciated. >=20 It attaches and detects the displays: littleguy# sysctl hw.acpi.video hw.acpi.video.crt0.active: 0 hw.acpi.video.lcd0.active: 1 hw.acpi.video.tv0.active: 0 But trying to turn off the LCD doesn't work: littleguy# sysctl hw.acpi.video.lcd0.active=3D0 hw.acpi.video.lcd0.active: 1 -> 1 Tried to connect the tvout and activate it, but the sysctl showed 0, even=20 though it was displaying to the TV. Twiddling this sysctl while the tv=20 out was active yielded the same results as the lcd, except it stayed at 0. My laptop's asl: http://am-productions.biz/debug/littleguy.asl I'd be happy to do more testing. =2D-=20 Anish Mistry --Boundary-02=_fsFGALgIFfob3sA Content-Type: application/pgp-signature Content-Description: signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (FreeBSD) iD8DBQBAGFsfxqA5ziudZT0RAghLAJsE4UoSMaT0pdTGlwybq8vWt3arZgCfeatN Lc6yTzdi/qlbQ5L68MuFZYA= =iWy6 -----END PGP SIGNATURE----- --Boundary-02=_fsFGALgIFfob3sA--
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