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EVO battery usage ... solved?

Discussion in 'Android Devices' started by TheBarron, Jun 21, 2010.

  1. TheBarron

    TheBarron Well-Known Member
    Thread Starter
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    May 7, 2010
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    Ok boys and girls, so while my battery life hasn't been horrific, I have been disturbed by how much battery it seems to use while it's sleeping. After much poking around and reading and using various system/battery/monitor apps in a non-methodical manner, I think I found it.

    I noticed that a process called 'compass' at /system/bin/akmd was persistent in utilization on my phone. While it only ever showed like 1-6% cpu utilization, it seemed to be showing it constantly. I uninstalled a 'compass' app I had DL'd from the market, but that had no effect.

    With some searching, I found some threads over at XDA that discussed this process misbehaving in some recent builds, although the conversations didn't seem to be about the EVO. Nonetheless, I decided to disable the auto screen orientation (Menu -> Settings -> Sound & Display -> Display Settings/Orientation = unchecked) and lo and behold, I'm not sure the phone even uses battery in standby now! (exageration for effect...)

    Now, this will require more testing, but it seems to be at the root of *my* battery issues. And I'm thinking after reading at XDA that this could be a broad problem. I'm also hopeful though, that this could be a relatively easy software fix for HTC/Google. Especially because I don't particularly find disabling the screen rotating an acceptable long term solution... but one I can live with for now, if it makes the HUGE battery gains it seems like it might.

    Thoughts?
     

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  2. kkwus74

    kkwus74 Well-Known Member
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    Jun 8, 2010
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    mine has been unchecked since day one......didnt make much difference to me:(
     
  3. IPvFletch

    IPvFletch Well-Known Member
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    Jun 6, 2010
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    Austin, TX
    Yeah and now you lose the accelerometer rotate feature, don't you?
     
  4. TheBarron

    TheBarron Well-Known Member
    Thread Starter
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    May 7, 2010
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    Yeah, like I said.. not a good longterm fix. But the threads on XDA seem to indicate there may actually be a problem with recent builds, rather than it just being a power-sucking function altogether.. so.. I hold out hope.
     
  5. TheBarron

    TheBarron Well-Known Member
    Thread Starter
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    May 7, 2010
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    That's unfortunate. But I've never seen a flat line on the battery usage graphs until unchecking it, and now I do.

    Are you using a task killer?
     
  6. kkwus74

    kkwus74 Well-Known Member
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    Jun 8, 2010
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    nope not using any taskkiller......
     
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