32 Watt only running Firefox,22W doing nothing is it normal?

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32 Watt only running Firefox,22W doing nothing is it normal?

Postby phidias81 on Sun Mar 03, 2013 2:07 pm

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 method
viewtopic.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?
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Re: 32 Watt only running Firefox,22W doing nothing is it nor

Postby Matt267 on Sun Mar 03, 2013 3:26 pm

Maybe installing "laptop-mode-tools" will help reduce power consumption. Although 22 watts seems like a lot power. Are you able to see what is running and using the most CPU time?

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Re: 32 Watt only running Firefox,22W doing nothing is it nor

Postby catweazel on Sun Mar 03, 2013 3:33 pm

Perhaps trying MATE might also reduce your power consumption. The video card on that device alone will pull 20 Watts.
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Re: 32 Watt only running Firefox,22W doing nothing is it nor

Postby Orbmiser on Sun Mar 03, 2013 5:16 pm

Yep was my first thought also video driver used? And fans being on taxed 100% all the time.
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Re: 32 Watt only running Firefox,22W doing nothing is it nor

Postby phidias81 on Sun Mar 03, 2013 6:07 pm

Attached the list of powertop for the current consumption, with laptop mode tools installed.

I'm using the "standard" graphic drivers, and didn't touch anything for the fan behaviour
Attachments
Screenshot.png
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