Ubuntu 12.04 doesn't know there's a battery

Question

Possible Duplicate:
The battery indicator in Unity panel not showing up

I've just installed Ubuntu 12.04 on my Acer Aspire 5553. It's the first time I've used Linux for more than 4 years so I don't really know what I'm doing. The installation went almost perfectly; Internet connections and graphics were all configured fine (which is more than I can say for the Windows 7 I've just installed on a dual boot).

However, when I unplug the power supply, there is no battery indicator displayed. In the power settings, there is only one column; I've seen screenshots indicating that I should see two columns, one for "On battery power" and one for "When plugged in". There is also no field "When power is critically low".

I can use the laptop on battery power, but it just keeps running on full power until it suddenly switches off. It seems like the OS doesn't "know" it's on a laptop.

I installed Windows 7 yesterday on dual boot and that configured the power supply perfectly (unlike most of the other hardware).

I reinstalled 12.04 this morning and the problem persists.

The problem is there in both Unity and Gnome.

Here is the answer you may be looking for. From the duplicate indicated by Eliah Kagan — Insperatus, Sep 07 '12 at 01:08

score 0 · Answer 1 · edited Mar 11 '17 at 19:03

0

Install dconf Editor via the terminal:

sudo apt-get install dconf-tools

or using the Software Center:

Then perform the action indicated in the screenshot below: enter image description here

edited Mar 11 '17 at 19:03

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answered Jul 19 '12 at 16:01

harisibrahimkv

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Thanks, but this option was already set this way. I think the problem is at a 'lower level'. – Sam Jul 20 '12 at 15:35

Ubuntu 12.04 doesn't know there's a battery

1 Answers1