Updated G4 PowerBook to 9.10, now fans running @ full tilt!

[spizo]

thanks, this worked.
however when I tried to reboot the computer got hung up on this:
* Asking all remaining processes to terminate...

I waited quite a while, tried ctrl+alt+F7, nothing, tried ctrl+alt+delete, nothing... so I had to force it off. After I booted back up again all was fine. I can now reboot no problem. Should I be worried about that message? Is that normal? Also, now that I've bypassed therm* will my fan never come on? Or will it function as it should?

sorry if I'm being paranoid... I spent the whole day reformatting/partitioning/etc after messing things up beyond repair, so I'm being extra cautious now.

thanks again.

[linuxopjemac]

I am not sure whether they don't kick in at all. I would try lm-sensors and carefully look what happens. If you are compiling or playing video for a while, keep an eye on the CPU temperature. If it gets to a point where fans should kick in, and it does not happen, ttop the activities on your computer yourself. If you think it's safe after experimenting, let us know. I have not heard of any problems with this fix though.

http://www.lm-sensors.org/

[spizo]

thanks, its working. The fans do kick in, just no where near as intensely as before - but it would appear that they don't need to.

thanks again!

[linuxopjemac]

great news again! This fix is safe then.

[heluani]

great news again! This fix is safe then.

I woudn't advice for removing the thermal management modules (specially if it's adt746x ) g4s are known to run hot and the hardware limit is too high. The original advice of increasing the limit_adjust parameter is better at least. You should take a look at which version of the module you were running. Take a look at http://patchwork.kernel.org/patch/63806/ On a fresh install of gentoo last week on a powerbook g4 I pulled a kernel that didn't have that patch, so the fans were running at full speed when the cpu was idle and not running at all when I was compiling. Perhaps this was the issue you were experiencing.

By the way, if you have the term_adt746x module running (with the right patch or a newer version) then you should

 echo 2 | sudo /sys/devices/temperatures/limit_adjust

replace 2 by 5 at your own risk (this is what Apple does though).

R.