I have pretty decent laptop and should be more than enough for running Ubuntu for browsing and watching movies, but Ubuntu seems to be getting much hotter than it should, compared to Win 7. I'm on Ubuntu 12.10.
I have Asus N53SV. CPU: Intel® Core i7-2630QM RAM: 6GB DDR3 GPU: NVIDIA GeForce GT 540M
Here's picture of XSensor when I have only Firefox open, it should be around 40C so that's 20C more than usual.