Questions about battery usage and issues in Ubuntu.

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10 views

battery recalibration tool Sony Vaio, battery Li-ion

I`m searching for recalibration battery tool for Li-ion battery of my Sony Vaio laptop. Using Ubuntu 14.04 LTS. Battery last for max. 10 min. there is just just 2 ways to solve it: 1 . recalibrate and ...
3
votes
1answer
2k views

Audio codec consuming high battery power

My powertop reports this for the two audio codec components. 4.85 W 100.0% Device Audio codec hwC0D3: Intel 4.85 W 100.0% Device Audio ...
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1answer
59 views

Ubuntu 14.04 EliteBook 8460p constant fan, hot, short battery

Finally took the plunge from Ubuntu in VM to wiping Windows and installing Ubuntu 14.04. I'm liking it so far although I've noticed the laptop gets hot very quickly, the fan is constantly on, and the ...
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2answers
3k views

No battery icon in Ubuntu Gnome 14.04

I'm using an Asus K56CB Laptop and I just upgraded from Ubuntu Gnome 13.10 to Ubuntu Gnome 14.04 (Gnome shell 3.10.4) however now I don't have a battery icon in the upper right-hand corner. Also the ...
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0answers
24 views

Hard shutdown in ubuntu 14.04 when battery is on critical level

i have set my laptop to perform shutdown when the battery is in critical level but instead of performing a shutdown, it just goes off. Any solutions?
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0answers
42 views

Battery not working/charging but detected

i have a thinkpad t 410 and ubuntu 14.04 LTS installed. everything worked fine for a long time, but since a week or so my battery is not working properly any more (orange battery light flashing) it ...
0
votes
1answer
64 views

Overheating and battery draining

About a month ago, I installed Ubuntu 14.10 on Lenovo T430 removing the current OS Windows 7. First two - three weeks everything was working smoothly. After then, my laptop started to overheat and ...
2
votes
2answers
3k views

Ubuntu 12.04 LTS drains my Samsung Series 9 900X3C ultrabook's battery extremely fast. Is there anything I can do to fix that?

The title basically says it all. My Samsung Series 9 900X3C ultrabook's battery is in the deep red around barely three hours after disconnecting it from the power - and during most of that time the ...
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0answers
18 views

battery died during update from 13.10 to 14.04

Apologies for a deeply rookie error, but any help much appreciated; Whilst updating from 13.10 to 14.04 the power died and now only boots a blank screen. In recovery mode I've tried 'repair broken ...
0
votes
1answer
25 views

How make longer lifetime of battery?

Please help to setup power perfomance on the laptop. Before Ubuntu 14.04 LTS use Win7 and work time was about 4 hours after 1,5-2 hours. Tried everything install Bumblebee, TLP. Lenovo e430 Intel ...
0
votes
1answer
21 views

14.04 Laptop battery time increasing and decreasing

I have just installed Ubuntu 14.04 in my new laptop. Every thing is fine except the battery timing. When it is 100% fully charged the time starts from 16 hours and drops to 2 hours in just seconds ...
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2answers
25 views

battery charging problem

My problem reappeared again. I have a Lenovo G780 which originally came with Windows 8 installed, and its power management would charge the battery up to 60%, but Windows crashed, and it was ...
0
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1answer
120 views

Battery not detected when laptop is disconnected in Ubuntu 14.04

I have made a fresh Ubuntu 14.04 installation on a Toshiba Satellite L735 laptop and bought a new BTExpert Battery. Strangely, the battery icon does not show ("Show battery status in the menu bar" is ...
0
votes
1answer
32 views

Battery indicator ALWAYS says Using Battery Power - even when plugged in

I have an ASUS N550JK laptop (BIOS version 204) running Ubuntu 14.04 (3.13.0-43-generic kernel). My issue is that the battery indicator ALWAYS shows that it's using battery power - even when plugged ...
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0answers
20 views

Ubuntu (14.04) freezes on laptop when power not inserted

I use Linux Mint 17 Qiana (on Ubuntu 14.04.1). My laptop is a Dell Inspiron M5110 which has an AMD CPU and an AMD graphics card. When I boot my laptop on battery, no problems occur. When I boot my ...
31
votes
6answers
31k views

How can I limit battery charging to 80% capacity?

I just learned that some Lenovo laptops include a utility that offers to limit battery charging capacity to within 0–80% in order to slow the attenuation of the battery lifespan: How can I do this ...
0
votes
1answer
109 views

Lenovo G40-45 AMD Driver match for Ubuntu 14.04 LTS

I have Lenovo G40-45 Laptop with specs : AMD A8-6410 Processor Radeon R5 M230 I use Ubuntu Gnome 14.04 LTS for the operating system, overall almost my laptop work properly with Ubuntu, but I ...
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0answers
37 views

Problem with battery indicator in 14.10

I've got a problem with battery indicator: Ubuntu keeps showing the charging icon although the laptop is not connected to an external power source. Is there any solution?
118
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22answers
94k views

Tips to extend battery life for laptops and notebooks

This question is present as a matter of historical interest. While you are encouraged to help maintain its answers, please understand that "big list" questions are not generally allowed on Ask ...
-1
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0answers
16 views

Ubuntu 14.04 battery issue on dell inspiron 5521 [duplicate]

I have been experiencing issues with my battery, it only charges upto 86%, it drains normally, and also sometimes it shows wrong remaining times (like 90hrs) and i cant calibrate it since it doesnt ...
8
votes
5answers
2k views

How can I find the discharge rate of the battery?

Maybe this question was made earlier but I can't find it. I want to see a terminal command or gui program that can show me the discharge rate of the battery. What hardware parts or programs are using ...
1
vote
1answer
35 views

How to repair powerstate (intel_pstate) on Intel Haswell chips?

I recently installed tlp on my Lenovo U430p laptop. After I runned it I noticed significant drop in my laptop's on bettery time. Now my laptop lasts on battery for 2 hours less than before. After ...
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0answers
20 views

System time is lost on re-boot

When I installed Ubuntu 14.04 Server (using gnome) on this computer (single boot) the RTC/CMOS battery was not installed. Consequently when there is no internet connection (for ntp) the RTC clock ...
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2answers
75 views

Battery not charging when laptop is in use (14.04)

I have a HP pavilion dv4, with an Intel® Core™ i5-2410M CPU. I switched to Ubuntu 14.04 recently and the battery of my laptop does not appear to charge when in use. It charges when the laptop is ...
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vote
2answers
28 views

I want to write a Shell program for my Laptop battery

I found many commands that fetch the battery status and Percentage like upower -e and so on. Now, I want to write a shell program for an alert message (As we get during Connected and Disconnected to ...
0
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0answers
16 views

Old battery detected

At the end of last year I had to purchase a new batter for my now five year old laptop. After upgrading to 14.04 when it had come out it started to detect my old battery and now displays the percent ...
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0answers
49 views

Battery indicator displays same percentage, gets stuck on charging/discharging

I'm having a problem with my battery indicator on my MacBook running Ubuntu 14.04. It consistently shows the same percentage until I either restart the computer or resume from suspend. Additionally, ...
0
votes
0answers
30 views

Lenovo Yoga 2 Pro and Ubuntu 14.04: Power display not updating

The percentage and remaining battery time display on the top right do not update on my Yoga 2 Pro that is running Ubuntu 14.04. However, if I click on the battery and Power Statistics program starts, ...
0
votes
0answers
19 views

Battery drain in lenovo g400s

I just bought a Lenovo Ideapad g400s (specs http://pastebin.com/VSMBUxFq) and for some reason, my battery only last for like 1 hour, the laptop is brand new, and i already tried everything, from TLP ...
2
votes
1answer
30 views

Java program keeps writing to disk when laptop is running on battery

I notice that when my laptop is running on battery, java applications (e.g. JabRef) will write to HDD every 5 seconds or so, as shown by iotop: 11:05:42 23199 be/4 yopology 0.00 B/s 7.39 K/s ...
0
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0answers
34 views

Just installed Ubuntu 14.04 Battery no longer charging past 70%

thanks for the help. I just installed Ubuntu, and it was working fine yesterday. I just fixed my internet connection speed, but now my battery is stuck at 70% charged. It has a symbol that says its ...
0
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0answers
50 views

Battery issues - suddenly critical level [Ubuntu 14.04]

Since a week I'm experiencing sudden drops in battery level: it will be around 50-60% and suddenly drop to less than 10% and I get the message the battery level is critically low. Sometimes it doesn't ...
0
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0answers
22 views

Power Statistics in Ununtu 14.04 shows me battery percentage = 0%. How to fix it?

in the past days I killed my netbook while booting, then I found that I can't turn it on unless it's connected to AC power. Power statistics tells me the battery is charging, the time to full is 0, ...
0
votes
2answers
95 views

Changing screen Brightness with a script

As you may know, screen brightness drains battery, that's why it is considered a big problem for laptops (at least for me). I can change the screen brightness but every time ubuntu boots up I will ...
1
vote
1answer
26 views

Using a desktop with Ubuntu 14.10…upper right corner says battery is charged 100%, why? (there is no battery)

I've done no modification to the system and I onky use apt-get update/upgrade. Nothing special like dist-upgrade or using beta packages. Should be standard stuff. This happened a couple weeks ago ...
1
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0answers
31 views

Battery only charges to 85 after 2 weeks

I'be been continuously using my new laptop HP 250 G2 for two weeks (always connected to the AC wall). The status was always fully charged. Yesterday I decided to run it on batteries until the power ...
0
votes
0answers
35 views

New battery not detected not charging Ubuntu 14.04 on eMachine D725 laptop

I have recently installed Ubuntu 14.04 on my old eMachine D725 laptop (2011 model) as the only OS. Though my old battery is detected and being charged, it doesn't hold charge for more than 2 minutes. ...
0
votes
1answer
65 views

14.04 - Laptop Battery Indicator does not show the right battery percentage

Despite my battery is full; the battery indicator shows it as '98%'. When I click on it it says "Battery(charged)". Is this a bug? And how can I resolve this issue? psi. My laptop is new & I do ...
1
vote
1answer
58 views

14.04 battery status is not working well

Problem : when I turn on my pc, the battery status is showing 95%. but it is still showing 95%, end of the battery. no more change. I reinstall the power management from software centre. But it is ...
0
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0answers
45 views

function keys only work with battery on lenovo g40-30

I have Ubuntu 14.04 LTS running on my Lenovo G40-30 and the function keys only works when the battery is connected. If I remove it, the function keys simply doesn't works. What can I do?
0
votes
0answers
29 views

In ubuntu 14.04, the battery icon is frozen

My battery icon is frozen! When I run unity under alt-f2 it changes but it won't change otherwise. I don't want to reset unity this way just to see whether my battery is running out all the time! ...
69
votes
14answers
89k views

How to check battery status using terminal?

I would like a command that check the battery status through the terminal
0
votes
1answer
48 views

“Battery critically low” on desktop

I installed Ubuntu 14.10 on a Lenovo Thinkpad, which is a All-In_One Desktop without any batteries. System is working fine, up to 2 problems: Shortly after logon, the desktop is shown and even a ...
0
votes
1answer
54 views

WIreless USB mouse does't work when laptop is on battery

I have a problem with my wireless USB mouse while working on battery. When laptop is plugged into power source mouse works pretty well. The problem started after I run some script that aimed to tune ...
0
votes
0answers
41 views

Battery is present. Ubuntu says it's charging but not

I am new to Ubuntu, installed 14.04 on my HP pavilion dv6. It was working fluently. But after a month It's BIOS has crashed and I sent it to HP TotalCare center. Yesterday, I've took it back. It's ...
0
votes
0answers
9 views

keyboard buttons 4 and 5 refresh the browser

very strange. the buttons '4' and '5' will refresh any browser site. I have to press the FN-button to neutralize the effect. please help, I cant take any longer. I wanted to fill in a ticket form on a ...
4
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1answer
179 views

Automatically dim brightness if battery is low

In Ubuntu 14.04 there is no option in the energy settings what to do when the battery is low. There is only a setting for action when critical. I would like to automatically dim the brightness on my ...
0
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0answers
42 views

Ubuntu Battery Issues

I'm using Ubuntu 14.04 on an Acer 5750g (CPU i5 2410m, Gt540 M, Samsung Evo840 SSD) I've been experiencing problems concerning temperature, battery life and (thus I guess) CPU usage. I've installed ...
0
votes
1answer
27 views

Server 14.04 on a laptop?

I have a Dell E6320 that I recently installed Ubuntu Server on after a motherboard failure. However, since installing Ubuntu, I noticed that the battery refuses to charge. I know the battery is good, ...
1
vote
1answer
248 views

Battery design capacity is zero?

I've a Lenovo G780 unit for which the battery design capacity is reported as zero. This is a brand new unit. In /sys/class/power_supply/BAT1 I can find the following information: ...