[ltp] Adding more cooling to the T42p

[Andrew Jesaitis]

As far as a hardware solution goes, you could buy a laptop cooler 
http://www.hardwarecooling.com/default.php/cPath/33.  Its basically a 
platform with a couple fans in it to increase the cooling of the laptop 
as a whole.  I can't really help you much beyond that (I'm still pretty 
new to linux ;)).

Andrew

David A. Desrosiers wrote:

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>	I know you're going to think I'm nuts, but I need a way to get 
>more heat off of the GPU and CPU than my T42p currently provides. I've 
>been thinking along the lines of a low-profile copper heatsink, 
>heatpipes or some other non-powered mechanism (something other than a 
>glob of heat-paste).
>
>	When I'm using OpenGL applications (i.e. my screensavers kick 
>in while I'm away), my GPU heats up dramatically (73C+) and eventually 
>the system just hard-locks and I have to forcibly shut it down.
>
>	I can cause it to happen by running bzflag full screen for 
>about 10 minutes, and I can watch the GPU and CPU temperatures rise 
>very rapidly, until the whole machine just freezes on me.
>
>	Another thing I've noticed, is that I can't set the 
>'cooling_mode' to 'automatic'. Its always set to passive (and yes, I 
>even hacked up acpi/thermal.c in the kernel to force that to active, 
>no change).
>
>	# echo 0x00 > > /proc/acpi/thermal_zone/THM0/cooling_mode
>
>	# cat /proc/acpi/thermal_zone/THM0/cooling_mode 
>	cooling mode:   passive
>
>	Is there a trick there? Am I missing something? I'm running 
>2.6.12.4 + software suspend patches (suspend2.net) + ibm-acpi v0.11, 
>and I still can't get this to do what I want.
>
>	I'd also like to figure out how to speed up the fan, if I 
>could, but I've run into dead-ends there as well.
>
>	I can't keep losing work due to these lockups, its really 
>beginning to become a productivity-drain.
>
>	Thanks in advance for any ideas/hints you might have. 
>
>
>
>David A. Desrosiers
>desrod@gnu-designs.com
>http://gnu-designs.com
>
>
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