Comment 48 for bug 22336

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Trae McCombs (traemccombs) wrote : Re: laptop overheats when performing CPU intensive tasks.

Possible Fix?

First, I'd like to thank Keybuk from #ubuntu-devel for his help on this. He took quite a lot of time walking me through things to check.

The thing that seems to have worked was this:
[do it in this order please!]

sudo /etc/init.d/powernowd stop

sudo sh -c 'echo -n ondemand > 'sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'

...

Then, I was able to monitor my battery temp by doing the following:
watch " acpi -V"

Some other commands to get interesting information:
cat /proc/acpi/thermal_zone/*/cooling_mode
cat /proc/acpi/thermal_zone/*/trip_points

With me, this problem now seems to be fixed doing the above two commands { powernowd stopping, and ondemand echo }

I was able to play a video on YouTube for 22mins straight without it shutting off. My temps got up to around 94C at one point, but they would scale down here and there, and my laptop never shut off.

Thanks again Keybuk for all of your help! Let's hope this leads to this bug being resolved. Please post your notes on this here to this bug.

Trae