From owner-freebsd-mobile Tue Jul 30 4:45:30 2002 Delivered-To: freebsd-mobile@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7FB2237B400 for ; Tue, 30 Jul 2002 04:45:28 -0700 (PDT) Received: from mail.rfc1149.net (marvin.enst.fr [137.194.161.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id B975A43E42 for ; Tue, 30 Jul 2002 04:45:22 -0700 (PDT) (envelope-from sam@inf.enst.fr) Received: from beeblebrox.rfc1149.net (beeblebrox-tun.enst.fr [137.194.161.40]) (using TLSv1 with cipher EDH-RSA-DES-CBC3-SHA (168/168 bits)) (Client CN "beeblebrox.rfc1149.net", Issuer "Top-level signer" (verified OK)) by mail.rfc1149.net (Postfix) with ESMTP id 439D6A805F for ; Tue, 30 Jul 2002 13:45:21 +0200 (CEST) Received: from beeblebrox.enst.fr (beeblebrox [127.0.0.1]) by beeblebrox.rfc1149.net (Postfix) with ESMTP id 8080480A for ; Tue, 30 Jul 2002 13:45:14 +0200 (CEST) To: freebsd-mobile@freebsd.org Subject: Toshiba Portege 4010 - battery level & screen brightness Date: Tue, 30 Jul 2002 13:45:14 +0200 Lines: 23 User-Agent: Gnus/5.090007 (Oort Gnus v0.07) XEmacs/21.4 (Honest Recruiter, i386--freebsd) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Organization: Ecole Nationale Superieure des Telecommunications Reply-To: Samuel Tardieu X-WWW: http://www.rfc1149.net/sam X-Mail-Processing: Sam's procmail tools X-Jabber: (see http://www.jabber.org/) X-OpenPGP-Fingerprint: 79C0 AE3C CEA8 F17B 0EF1 45A5 F133 2241 1B80 ADE6 (see http://www.gnupg.org/) X-Sam-Laptop: yes Message-Id: <2002-07-30-13-45-14+trackit+sam@inf.enst.fr> From: Samuel Tardieu X-Delivery-Agent: TMDA/0.58 Sender: owner-freebsd-mobile@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org The Toshiba Port=E9g=E9 4010 (as well as the 4000) has a very strange behaviour when the battery level drops below 50%: the screen brightness gets set to its lowest value, regardless of the BIOS parameters. Even if adjusted through Toshiba HCI (hardware interface), the brightness gets lowered every 16 seconds or so. It is likely that the laptop has an internal counter (which I cannot locate unfortunately) which sets the brightness and other parameters each time it wraps around. It is also likely that Windows resets this counter periodically to be able to control those parameters itself. Waiting for progresses, I have adapted Linux tbacklightond (a utility which resets the screen brightness just after it has been lowered by the laptop) to FreeBSD. It has a very annoying flickering effect every 16 seconds, but at least you can still see your screen. If someone is interested in this program or has a better solution, please let me know. Sam --=20 Samuel Tardieu -- sam@inf.enst.fr To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message