Fan Control Causing Heat Problems

[fletch33]

i am using a 13" Macbook Pro version 5,5 running dual boot Ubu 9.10 (64bit) with OS X 10.6.

i have spent hours looking for a straight forward answer to this problem and have had no luck. i have read so many posts with references to a script that i cant figure out or some software that no longer works that i decided i had to post this.

i am at a point where i want to use Ubu as my main OS but my Macbook gets too hot to use if i am doing much of anything on it.

would it be possible in simple terms for anyone to suggest a way to fix this or is it something that can not really be fixed on a Macbook Pro?

i greatly appreciate any help.

thanks

[linuxopjemac]

according to the wiki, you should add

coretemp

to the end of /etc/modules

I don't know what that does though.

Maybe you can try to set the fan manually like for the MBP 5,4 (as here).

echo 4000 | sudo tee /sys/devices/platform/applesmc.768/fan1_min
echo 4000 | sudo tee /sys/devices/platform/applesmc.768/fan2_min

[fletch33]

thanks for the info. i have added coretemp and setting it manually seems like a lot of work as my fan needs change all the time while i am working.

i am starting to think that there is not a solution

i have actually been considering getting another laptop and selling this MBP just to solve this issue but i really do not want to as hardware wise it is hard to beat this laptop.

on OS X you can get all kinds of programs for this like SMCFancontrol but this doesnt seem to be an option for Ubu.

thanks again for your suggestions

[linuxopjemac]

If you ever find a soluition, be so kind to let us know.

[linuxopjemac]

here the same stuff I gave you earlier, but then applied for your machine

echo 1 > /sys/devices/platform/applesmc.768/fan1_manual 
echo 7000 > /sys/devices/platform/applesmc.768/fan1_min

http://allurgroceries.com/mbp55/#fan

You can have this thing done at boot you know, you just make this script to run at boot. No hassle...

like here:
http://embraceubuntu.com/2005/09/07/...run-at-bootup/

[Nandux]

I have the very same problem with my MacBookPro, and to increase the fan speen is not the solution for me and even if I increase the speed it looks like the laptop is going to catch fire. Also, I go from 6hours of battery life on osx to 1h30 on ubuntu so there's definitely some power management issues and not just fan issues. I'm still trying stuff such as cpufrequtils to keep the processor down but so far I havent noticed any change in temperature. I know power management is one of the weakness of Linux in general but it just means that we have to work on it!

[Nandux]

Thanks to linuxopjemac, I found this wiki which could prove useful to help with the overheating issue. I will give it a try tonight.

http://mac.linux.be/content/improve-...macbook-ubuntu

[linuxopjemac]

Nandux, I am very curious how that will work out for your MBP. Please let us know your results.

[fletch33]

Thanks to linuxopjemac, I found this wiki which could prove useful to help with the overheating issue. I will give it a try tonight.

http://mac.linux.be/content/improve-...macbook-ubuntu

i also look forward to what you find out. there are many things i can help people with but when it comes to linux i am still very much the student (for now)

this is a great community and i appreciate the help.

[Neds Moar Salt]

Try resetting your PMU if the other stuff doesn't work.