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bawig1
n00b
Joined: 03 Aug 2011
Posts: 68
Location: Melbourne, Australia
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 Posted: Sat Oct 29, 2011 9:01 am Post subject: Laptop battery problems |
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Hi guys,
I'm having some problems with my battery. I have been following the power management documentation here;
http://www.gentoo.org/doc/en/power-management-guide.xml
When I run;
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/etc/init.d/laptop_mode start
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and
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cat /proc/sys/vm/laptop_mode
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it shows 0 which according to the documentation means the service is not running. I have set up my kernel as per the instructions. I am also using a brand new battery. the laptop is plugged into AC power and has been charging all day, however the KDE plasma battery monitor only shows a level of 78%. Is there something I am doing wrong? Is there something I have missed in regards to power management?
thanks'
bawig1. |
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s_bernstein
Apprentice
Joined: 11 Mar 2006
Posts: 172
Location: Bremen, Germany
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| Posted: Sat Oct 29, 2011 1:08 pm Post subject: |
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| Depends on your laptop. Some of them, like the IBM/Lenovo do not charge their battery to 100% capacity by default because that will kill your battery faster. They only charge up to 80%. If you want full capacity, you have to manually - probably per hotkey - start a full load. |
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sipingal
n00b
Joined: 12 May 2008
Posts: 63
Location: China
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bawig1
n00b
Joined: 03 Aug 2011
Posts: 68
Location: Melbourne, Australia
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| Posted: Sat Oct 29, 2011 8:34 pm Post subject: |
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| s_bernstein wrote: | | Depends on your laptop. Some of them, like the IBM/Lenovo do not charge their battery to 100% capacity by default because that will kill your battery faster. They only charge up to 80%. If you want full capacity, you have to manually - probably per hotkey - start a full load. |
My laptop is a lenovo G560 which would probably explain why it only charges to 78% - 79%. This may sound like a stupid question but how do I start a full load? |
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s_bernstein
Apprentice
Joined: 11 Mar 2006
Posts: 172
Location: Bremen, Germany
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| Posted: Sun Oct 30, 2011 4:43 am Post subject: |
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| I have no idea. Maybe a look at the lenovo user guide or support page could help. Or there might be a bios setting. Or you might be able to use tp_smapi or a similar package to change behavior. |
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Kernel & Hardware
