From acpi4linux  Sun Jun 26 07:06:19 2005
From: Thomas Perl <thp () perli ! net>
Date: Sun, 26 Jun 2005 07:06:19 +0000
To: acpi4linux
Subject: [ACPI] hp omnibook xe4500 fan control
Message-Id: <42BE53EB.5050601 () perli ! net>
X-MARC-Message: https://marc.info/?l=acpi4linux&m=111976952325033

Hello, List!

I'm having a problem with HP's Omnibook XE4500.

I cannot control the fan using its /proc/acpi interface. There is a fan 
entry and I can try to set some options, however - they are not set 
effectively (seems like Linux isn't in control of the fan). I'd like to 
set the trip_points to some values so that the fan doesn't come on so 
often. Any hints on where to start? Or it is not possible on Linux anyway?

There is a fan.exe on the diagnostic partition which switches the fan on 
and then off for diagnose purposes, so it _should_ be possible to 
control the fan by software.


Thanks for any information!
Thomas

PS: Please cc the reply also to me, I'm currently not on the list.


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