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Thread: HORRIBLE 11.10 battery life - fix anytime soon?

  1. #11
    Join Date
    Sep 2011
    Location
    india
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    297
    Distro
    Ubuntu 13.04 Raring Ringtail

    Re: HORRIBLE 11.10 battery life - fix anytime soon?

    Quote Originally Posted by fictivetoast View Post
    I've managed to bump it up to an estimated 9+ hours with screen around 70% brightness and wifi/bluetooth both on by adding those additional parameters to my grub conf, which now reads :

    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pcie_aspm=force i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1"

    Woohoo!!!
    your 9+ hr battery life is with Jupiter, powertop and these above additions to grub conf, or just the additions ?
    core i3, 4gb ram, OCZ agility 3 ssd ,ati radeon -- ubuntu 13.04
    acer aspire 4752 -, ubuntu 12.10


    Faith is miraculous if it is accompanied by dedicated efforts

  2. #12
    Join Date
    Aug 2006
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    92

    Re: HORRIBLE 11.10 battery life - fix anytime soon?

    Jupiter + those grub additions.

    I have powertop installed, but haven't been using it. As I mentioned earlier, I don't really understand the new powertop interface with the version packaged in 11.10, so I haven't even touched it...

  3. #13
    Join Date
    Dec 2011
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    4

    Re: HORRIBLE 11.10 battery life - fix anytime soon?

    ^ new powertop...+1

  4. #14
    Join Date
    Dec 2009
    Location
    Southern Maryland
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    1,576
    Distro
    Ubuntu

    Re: HORRIBLE 11.10 battery life - fix anytime soon?

    With all these changes it'd be interesting to compare Ubuntu's battery life to Fuduntu's battery life since I believe Fewt is the Jupiter dev as well as the Fuduntu lead dev. Wondering if Fuduntu has other tweaks to help on battery life...

  5. #15
    Join Date
    Nov 2011
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    Ubuntu 11.10 Oneiric Ocelot

    Re: HORRIBLE 11.10 battery life - fix anytime soon?

    There is the kernel 3.2 RC option....for the ones who dare to do it.

  6. #16
    Join Date
    Sep 2009
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    130

    Re: HORRIBLE 11.10 battery life - fix anytime soon?

    I downgraded to the 2.6.39.3 kernel and it runs so much cooler it isn't funny. The fan comes on rarely. I think the fix is supposed to be in the 3.3 kernel when it is released or at least that is what I have read


    Robin

  7. #17
    Join Date
    Nov 2011
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    Ubuntu 11.10 Oneiric Ocelot

    Re: HORRIBLE 11.10 battery life - fix anytime soon?

    Quote Originally Posted by Z06Gal View Post
    I downgraded to the 2.6.39.3 kernel and it runs so much cooler it isn't funny. The fan comes on rarely. I think the fix is supposed to be in the 3.3 kernel when it is released or at least that is what I have read


    Robin
    In this forum there are #54 posts but no coincidence on what kernel is better or worst, on overheating.
    http://ubuntuforums.org/showthread.php?t=1745389

  8. #18
    Join Date
    Sep 2009
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    Re: HORRIBLE 11.10 battery life - fix anytime soon?

    I understand but that is what works for me. My laptop runs 15 degrees cooler with the downgraded kernel

  9. #19
    Join Date
    Nov 2011
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    Ubuntu 11.10 Oneiric Ocelot

    Re: HORRIBLE 11.10 battery life - fix anytime soon?

    As I understand this is the problem and that's why they cannot find a simple solution. The good kernel for some is the disaster for others. It's extremely difficult to satisfy all these diverse structures.

  10. #20
    Join Date
    Aug 2010
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    11

    Re: HORRIBLE 11.10 battery life - fix anytime soon?

    i915.i915_enable_rc6=1
    i915.i915_enable_fbc=1
    i915.lvds_downclock=1

    These three options in grub made a huge difference for me. Using ~8W now, cool and quiet.

    Toshiba satellite c660

    I must say; Unity has really grown on me even though it's sluggish. Make a lightweight version without all the pretty stuff.

    Unity is a great idea.

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