Date: Tue, 30 Jul 2002 13:45:14 +0200 From: Samuel Tardieu <sam@inf.enst.fr> To: freebsd-mobile@freebsd.org Subject: Toshiba Portege 4010 - battery level & screen brightness Message-ID: <2002-07-30-13-45-14%2Btrackit%2Bsam@inf.enst.fr>
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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
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