There is a bug w.r.t to the graphic drivers for this laptop. This causes udev to take up quite a bit of CPU, making the laptop run hot.
The Ubuntu bug is here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/440411
From the ubuntu bug, once can go look at the related kernel bug:
http://bugs.freedesktop.org/show_bug.cgi?id=23183
There seem to have been a resolution in the kernel but that got reverted since it was causing issues. So for now the problem remains.
For now I am killing udev to keep my laptop cool. Like so:
$ sudo /etc/init.d/udev stop
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