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Thread: Battery life on laptops in Natty 11.04

  1. #1
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    Battery life on laptops in Natty 11.04

    Has anyone else had lower battery life when using Ubuntu 11.04? I have a Dell Studio 1558. On Lucid and Maverick I would get a good four hours of battery life. For Natty, I only get an hour, and my fan is pretty darn loud.

    I know, what you'll are going to say, it's an alpha release you should expect it. I'm just wondering if I'm not the only one and if this would affect my average battery life if I keep this going...

    Overall, I'm loving Unity!

  2. #2
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    Re: Battery life on laptops in Natty 11.04

    My eeePC 1005P has had its battery life cut from 8 hours to around 3. So you aren't the only one. But I expect it to just be because it's an alpha, hopefully it'll be addressed soon.

  3. #3
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    Re: Battery life on laptops in Natty 11.04

    If the devs are unaware of the problem, they can;t fix it. What kind of hardware do you folks have?
    Code:
    lspci

  4. #4
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    Re: Battery life on laptops in Natty 11.04

    it might be worth checking that your cpu governor is not stuck at performance when you boot. For my laptop it sometimes stays at ondemand - on some occasions it defaults to the highest performance.

    If you are using ubuntu classic you can right click the panel and choose "cpu frequency".

    If you are using unity then add the indicator-cpufreq as per instructions here
    mark your thread as [SOLVED], use Thread Tools on forum page.

  5. #5
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    Re: Battery life on laptops in Natty 11.04

    So I ended up checking this post only today and as I was reading your posts Update Manager popped up and I let it install updates. Then the friendly driver icon appeared in my indicator applet saying it had to activate my ATI graphics card driver! Which usually takes up a helluva lot battery if you don't (from my experience).

    It's odd, because when I installed Natty, video acceleration seemed fine without it. It was just battery life that was being terrible.

    Anyway, I think you guys should check the Update Manager as well.

    Good luck!


    UPDATE: I guess I spoke to soon. After activating the drivers, it made all of Unity and text boxes black. I just deactivated it for now.

    UPDATE 2: Update to fix my problems finally released!
    Last edited by lifelike27; April 8th, 2011 at 01:27 AM.

  6. #6
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    Re: Battery life on laptops in Natty 11.04

    Quote Originally Posted by Temüjin View Post
    If the devs are unaware of the problem, they can;t fix it. What kind of hardware do you folks have?
    Code:
    lspci
    Since you were curious..

    Code:
    jon@jon-ubuntu:~$ lspci
    00:00.0 Host bridge: Intel Corporation Core Processor DMI (rev 11)
    00:03.0 PCI bridge: Intel Corporation Core Processor PCI Express Root Port 1 (rev 11)
    00:08.0 System peripheral: Intel Corporation Core Processor System Management Registers (rev 11)
    00:08.1 System peripheral: Intel Corporation Core Processor Semaphore and Scratchpad Registers (rev 11)
    00:08.2 System peripheral: Intel Corporation Core Processor System Control and Status Registers (rev 11)
    00:08.3 System peripheral: Intel Corporation Core Processor Miscellaneous Registers (rev 11)
    00:10.0 System peripheral: Intel Corporation Core Processor QPI Link (rev 11)
    00:10.1 System peripheral: Intel Corporation Core Processor QPI Routing and Protocol Registers (rev 11)
    00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)
    00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
    00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06)
    00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 06)
    00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 06)
    00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 4 (rev 06)
    00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 06)
    00:1c.5 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 6 (rev 06)
    00:1d.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
    00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a6)
    00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 06)
    00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller (rev 06)
    00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06)
    02:00.0 VGA compatible controller: ATI Technologies Inc Manhattan [Mobility Radeon HD 5000 Series]
    02:00.1 Audio device: ATI Technologies Inc Manhattan HDMI Audio [Mobility Radeon HD 5000 Series]
    04:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01)
    07:00.0 SD Host controller: Ricoh Co Ltd MMC/SD Host Controller (rev 01)
    07:00.1 System peripheral: Ricoh Co Ltd Memory Stick Host Controller (rev 01)
    07:00.2 System peripheral: Ricoh Co Ltd Device e852 (rev 01)
    07:00.3 FireWire (IEEE 1394): Ricoh Co Ltd FireWire Host Controller (rev 01)
    09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
    ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-Core Registers (rev 04)
    ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 04)
    ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 04)
    ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 04)
    ff:03.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller (rev 04)
    ff:03.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Target Address Decoder (rev 04)
    ff:03.4 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Test Registers (rev 04)
    ff:04.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Control Registers (rev 04)
    ff:04.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Address Registers (rev 04)
    ff:04.2 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Rank Registers (rev 04)
    ff:04.3 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Thermal Control Registers (rev 04)
    ff:05.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Control Registers (rev 04)
    ff:05.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Address Registers (rev 04)
    ff:05.2 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Rank Registers (rev 04)
    ff:05.3 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Thermal Control Registers (rev 04)

  7. #7
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    Re: Battery life on laptops in Natty 11.04

    My battery life has been reduced to 1 hr on a dell mini 9. Previously it was close to 3 hrs. Powertop shows a massive increase in interrupts but its not application specific. I suspect a kernel or driver problem.
    Repair:dpkg --configure -a Reconfigure:dpkg-reconfigure pkg (-a) Fix:apt-get -f install (pkg) Nuke:dpkg --force-remove-reinstreq -r pkg Corrupt deb:rm /var/cache/apt/archives/pkg Hack dpkg:rm /var/lib/dpkg/info/pkg* Chroot unbootable ubuntu

  8. #8
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    Re: Battery life on laptops in Natty 11.04

    Before I was able to use the ATI proprietary driver, this is what my battery's discharge profile was: http://dl.dropbox.com/u/8515110/Desk...ge%20graph.png

    After I was able to and using Beta 2: http://dl.dropbox.com/u/8515110/Desk...eta%202%29.png

    Not much change from I can notice, but my battery lasts around 1.30 - 2.00 hours now. It isn't the optimal amount, but at least it's half of what it used to be instead of quarter...

  9. #9
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    Re: Battery life on laptops in Natty 11.04

    You may want to give Jupiter a try. I know a number of people that have had very good results battery life wise by using it:

    http://www.fewt.com/2010/07/jupiter-...or-ubuntu.html

  10. #10
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    Re: Battery life on laptops in Natty 11.04

    If you were running without compiz effects before, you've most likely got your battery drain right there.

    Dual booting several versions of Ubuntu, Natty drains the least battery with effects enabled here, thought significantly more than with effects disabled.

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