Comment 40 for bug 1164557

Hi,

this is not easy to answer.

As I start with Ubuntu 10.x on my laptop I got hot problems at load. I start then to add some packages (I not rember more which one) an dthe problem disapears!

I have done an update to the second 10.x and I don't have any problem.

After updating to Precise first I see no problem, but short after I occurs. This is because in normal usage, like internet writng viewing, I got no problems. When I start cpu load activity like a lot of graphics or video work the laptop overheads an hangup.

I tried to figure out if I have done some mistake, like wrong governor packages i.e. Also google gave no solution. One interestin point is: I use the package thinkfan. I have it customized just after starting the overheating problems at the beginning. After updating to Precise I found that thinkfan was configured to use the fan in the level 0-7. Which means max 3900 fan speed. So I found using google that there is a fan level disengaded (which brings an fan speed 5800. I activate this under precis for the first time. But this don't help to prevent overheading. At 68°C cpu temp run my fan with 5800 revolution, what he have never done before Precise.

This seems to be a serious and useable Linux problem: I often get computer hangups if I use different Linux live system on many computers to do a offline backup. When I then run parallel partimage tasks for different disks those computers hang. I guess overheating. Running the partimage for the disks in serial get no problem.

To circumvent my problem I have writen a pearl script which monitors the cpu temp every 10s and switch to governor powersave at 82°C and back to conserative at 73°C.

Hope this explains in dead what happens regards Rainer