Date: Tue, 09 Jan 2001 23:47:42 +0900 From: Mitsuru IWASAKI <iwasaki@jp.FreeBSD.org> To: dufault@hda.hda.com Cc: current@freebsd.org Subject: Re: Fan speed control sony vaio lx800 slimtop Message-ID: <20010109234742E.iwasaki@jp.FreeBSD.org> In-Reply-To: <200101081352.f08Dqvk07586@hda.hda.com> References: <200101081352.f08Dqvk07586@hda.hda.com>
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Hi, > Now I'd like to figure out how to turn the damn fan up and down. This > machine is quiet under windows but sets the fan to high under FreeBSD > and never turns it down. The fan has three settings - 0V, 6V and > 12V. Under windows it stays between 0 and 6V. Thermal management implementation is in our queue. We'll create policy manager for ACPI subsystems including thermal (Active, Passive cooling etc.). Of course any help would be welcome :-) > I've tried "apm -h 1; apm -e 1;" hoping something would happen > but it still doesn't slow down the fan. Currently we don't have any means to control fan device (except for the machine specific tools). > If someone can sketch out a road map of what I should do I'll do the > dirty work. I don't know about ACPI etc and so would appreciate a > kick start. I've picked up the spec but haven't printed it out yet. You could find `3.10 Thermal Management' for overview and `12 THERMAL MANAGEMENT' for detail in ACPI 2.0 spec. Also `7.1 Declaring a Power Resource Object' and `10.6 Fan Device' may help you. acpi-jp@jp.freebsd.org is a mailing list for ACPI development. # English and Japanese are mixed :-) If you are interested in it, please send a mail to Majordomo@jp.freebsd.org with subscribe acpi-jp on body. Thanks To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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