I have the laptop Acer Aspire 5315-2290.
In Vista the cooler work when the CPU is warn, and stop when CPU is cool.
In Ubuntu when I work sometime the laptop is power off by self, and I can’t save the work.
I think the problem is because Ubuntu don’t work normally with cooler (or sensors), because after I power on again the cooler work hardly and the air is warned.
Maybe I need to install something.