Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 1 Dec 2004 10:07:00 +1030
From:      "Wilkinson, Alex" <alex.wilkinson@dsto.defence.gov.au>
To:        freebsd-acpi@freebsd.org
Subject:   Re: ACPI differences 4.10 - 5.3, laptop problem
Message-ID:  <20041130233659.GC20263@squash.dsto.defence.gov.au>
In-Reply-To: <20041130180546.BD4CC5D04@ptavv.es.net>
References:  <20041130085340.GA76915@totem.fix.no>  <20041130180546.BD4CC5D04@ptavv.es.net>

next in thread | previous in thread | raw e-mail | index | archive | help
   0n Tue, Nov 30, 2004 at 10:05:46AM -0800, Kevin Oberman wrote: 
   
   > Looks like the same processor I have and you can try adding:
   > options	   CPU_ENABLE_TCC
   > to your kernel. This enables the P4 Thermal Control which will let you
   > throttle the speed of the CPU without ACPI. Use the hw.p4tcc sysctls to
   > manage the speed.

Kevin, why don't you use 'C states' for the afforementioned ?
Throttling reduces CPU performance. I thought it would be better to
use C1,C2,C3, states. Or does fbsd ACPI not support C states yet ?

 - aW



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20041130233659.GC20263>