I am new linux user, installed ubuntu 12.10 (64-bit) from wubi (getting boot option (windows7/ubuntu).
But after opening ubuntu, laptop gets heat up, fan running very fast and performance is very poor, while installing graphics driver it hangs and i have to shut system by long pressing power button.
Battery backup ends very soon ( almost 1/5 as compared to win 7)
I installed powertop, it is showing 100% cpu usage.
I searched for the problem, but there are many solutions given online, i have tried some but no success.
system specs: hp pavilion dv4, Intel core i5 (2nd gen), 6 gb ram