Date: Mon, 7 Jan 2008 19:31:54 +1100 From: Norberto Meijome <freebsd@meijome.net> To: Nathan Lay <nslay@comcast.net> Cc: freebsd-stable@freebsd.org, "Alexandre \"Sunny\" Kovalenko" <gaijin.k@gmail.com>, Johannes Dieterich <dieterich.joh@googlemail.com> Subject: Re: overheating Thinkpad X60s with 7.0-RC1 Message-ID: <20080107193154.1a672c91@meijome.net> In-Reply-To: <47817EE8.2050302@comcast.net> References: <542798610801060556h28d300f2n4fdcf21d83d2213f@mail.gmail.com> <47813D8E.9080603@fsck.ch> <542798610801061326o63f731d5o32bef2eb2624f85e@mail.gmail.com> <20080106222040.GB67243@tirith.brixandersen.dk> <542798610801061458m2a878a9dj2d33065de3642236@mail.gmail.com> <1199667145.899.39.camel@RabbitsDen> <47817EE8.2050302@comcast.net>
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On Sun, 06 Jan 2008 20:22:48 -0500
Nathan Lay <nslay@comcast.net> wrote:
> I do notice, however, that FreeBSD seemed to never use the fan to its
> potential on any of the Thinkpads I've used (T40 for 3 years, T43 for 3
> years). Comparably, Windows XP would rev the fan far higher than even
> setting 'dev.acpi_ibm.0.fan_level=7' when under load. The fan can
> certainly work faster (even when booting FreeBSD, its audibly
> faster)...but 7 is the highest level acpi_ibm allows one to set.
yes, this is true - even booting under knoppix and loading some special drivers, u can pass -1 (or some special value) to the linux driver and it will let the fan spin lose...and it definitely goes far faster than the approximately 3.5K rpm it does with fan_level=7 and fan=0.
I have a Thinkpad Z60m, single core, 2 GHz. Everything original except the memory, increased to 1.5 GB.
in my case, i think the GPU heats up pretty badly... it is very hot where I think the video card is located.
I've posted to both mobile@ and acpi@ under the subject of 'Management of Thermal' with my woes while on the latest 6.2 before 7 went into Beta1. Since my upgrade to 7 i've had no major issues with heat. The emails i've posted previously show the settings i have been using, as well as whatever I had done in knoppix to manage the speed of the fan.
cheers,
B
_________________________
{Beto|Norberto|Numard} Meijome
"Caminante no hay camino, se hace camino al andar"
Antonio Machado
I speak for myself, not my employer. Contents may be hot. Slippery when wet. Reading disclaimers makes you go blind. Writing them is worse. You have been Warned.
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