Balanced Power - why use it? why not?

Discussion in 'Lenovo IdeaTab A2109' started by arbarnhart, Feb 11, 2013.

  1. arbarnhart

    arbarnhart Senior Member

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    I really haven't found much on what this does, other than someone briefly mentioning it should extend battery life but may not be a good trade off if you play games. So, what does it do and are you using it or recommending it for certain types of users? Recommending against it?
     
  2. flashallthetime

    flashallthetime Senior Member

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    One of those useless items I guess, battery life is solely determined by how it's used and how often

    Sent from my Evo 3D GSM using Tapatalk 2
     
    Last edited: Feb 11, 2013
  3. dieseltown

    dieseltown Member

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    I don't use it.. I just adjust my brightness manually, I actually leave it on about 35%.. I leave wifi on always, and get a good 8 - 10 hours solid use.
     
  4. arbarnhart

    arbarnhart Senior Member

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    I adjust my brightness manually also. That's a different setting. I am not sure what the balanced power setting actually does, but they must have some reason to have added it.
     
  5. vampirefo.

    vampirefo. Senior Member Developer

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    As far as I know, as the setting does is dim tne lights.
     
  6. arbarnhart

    arbarnhart Senior Member

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    It is on the Display page, but there is also a separate brightness setting with the slider and check box for automatic.
     
  7. vampirefo.

    vampirefo. Senior Member Developer

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    Yes, balance power overrides those settings, and adjust brightness to reduce battery use.
    All tegra 3 devices has this setting, I have never read anywhere that the setting did anything beyond adjusting brightness.
    I think if it did more then that, the info would be posted on the internet somewhere.
     
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  8. vampirefo.

    vampirefo. Senior Member Developer

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    This setting is designed for users who don't adjust their brightness, they want the tablet to make the adjustment for them. People who download battery saving apps, most likely would find it useful.
    My battery savings are done at kernel level, lowering the voltage used at each frequency uses less battery life to do same task.
     
  9. arbarnhart

    arbarnhart Senior Member

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    I turned it on on mine and the slider still adjusts the brightness up and down and it doesn't enable the automatic brightness (not checked in the UI, and testing it by taking it from shadow to light the screen doesn't change). I did find the info below about the Tegra in the Transformer Prime:

    Source: Asus' Eee Pad Transformer Prime tablet - The Tech Report - Page 6

    The odd thing about that is that if I am reading it correctly, on the Prime the balanced mode is not the power saving mode.
     
  10. FloRider

    FloRider Senior Member

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    That might be the case. You get better control with a governor though (over the cpu freqs).
    And I don't like the display quality. Just MHO.

    Sent from my IdeaTabA2109A using Tapatalk HD
     
  11. arbarnhart

    arbarnhart Senior Member

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    The display quality of which setting on which tablet? I fear I confused the topic further by quoting info on another tablet, though it seems relevant. The Balanced Mode does seem to be a Tegra thing more than an Android thing or Lenovo thing...
     
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  12. FloRider

    FloRider Senior Member

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    I don't like the display quality of Balanced Power. I set mine at 55% tho...

    Sent from my IdeaTabA2109A using Tapatalk HD
     
  13. arbarnhart

    arbarnhart Senior Member

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    I haven't been using Balanced Power but will try that later and compare. I have watched a lot of video since I got the tablet and been pretty pleased.
     
  14. FloRider

    FloRider Senior Member

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    Sorry I didn't respond to the tablet question. I mean my A2109.
     
  15. arbarnhart

    arbarnhart Senior Member

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    Well, I messed around some last night and I am confused as ever. Balanced Power does not completely over ride the other display settings but definitely affects them. I wish they had a graphic on the display settings page so you could see the effect as you changed it. It is subjective to begin with and flipping back and forth makes it really hard to compare. I found that I like the slider set brighter if I have Balanced Power on. That is not to say that it is dimmer with it on, just that if it is on I like the display brighter. Overall, I like the display better with Balanced Power turned off. Purely subjective; it is really difficult to pinpoint visual differences. It's like looking at 2 TVs at the store that both have good pictures but are obviously a little different. It's a lot easier when you see them side by side to say one is crisper or warmer or whatever. I can't really make a definitive analysis on the tablet, though I guess that means I can say it isn't that dramatic.
     

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