Hello, since I'm experiencing low battery performances coming from win 7 to Linux mint 14 mate, I'm trying to sort out the problem. With powertop the consumption while running only firefox is 27-32 watt. Closing firefox, switching off wireless and putting brightness at minimum I still have 22 Watt, while I read in internet that for my laptop you can go as low as 7 Watt in WIndows.
I have an acer 3820tg, and "apparently" already switched off the ati card with this methodviewtopic.php?f=59&t=126000#p688844
But I'm not sure it's working, since the battery is draining very quickly. How to verify that the card is off?
Other suggestions apart from that to improve battery performances?