The tag has no usage guidance.

learn more… | top users | synonyms

13
votes
6answers
3k views

Text only mode in Linux (No Gnome, KDE, Unity) to prolong battery life

If I want to disable my GUIs completely to save battery life, how would I proceed? I know that I can hit Ctrl + Alt + F3 and be on the command line, but the desktop manager would be in the background ...
13
votes
1answer
2k views

How do I make my laptop sleep when it reaches some low battery threshold?

I'm using Ubuntu, but I have i3 as my window manager. Under i3, when my battery reaches 0%, the computer will just abruptly shut down, no warning or anything. Is there a simple script or ...
9
votes
3answers
437 views

Is there a risk of data corruption if suspended laptop runs out of battery?

I often tend to just put my laptop on suspend using xfce4-power-manager, and although usually the battery is sufficiently charged up until the next time (when I plug in the charger), sometimes I ...
8
votes
2answers
2k views

How can I change the battery icon in the systray?

I have installed Gnome and Awesome window manager. The window manager has a panel that displays systray icons according to the freedesktop.org System Tray Protocol Specification. I'd like to change ...
7
votes
2answers
14k views

Why does Linux have poor battery life by default compared to Windows?

Is there something inherent to Linux operating systems that makes them poor managers of battery power by default? I would have thought a light distro like Lubuntu would have a clear battery life ...
6
votes
6answers
4k views

How can I get an alert when my battery is about to die in Linux Mint?

This happens to me more than I'd like to admit, but sometimes I don't notice the power getting low since it only shows up in my status bar, then the computer just quits. I'd like a big alert that ...
5
votes
2answers
7k views

How to adjust charging thresholds of laptop battery?

My laptop is Lenovo T400, and OS is Ubuntu 12.04. I have not been able to adjust the thresholds for battery starting charging and stopping charging. I observed that its current starting charging ...
5
votes
1answer
89 views

Undesired shutdown on low battery - Debian Testing

I'm currently using Debian Testing (stretch) after a hard drive crash on my laptop, but I'm facing a weird issue with it. The laptop (Acer 5830TG) has a non-removable three-cell 6000mAh Li-Ion ...
4
votes
2answers
613 views

How to find out the manufacturing date of a battery from linux

How can I find out the manufacturing date of a battery from linux? If this is not possible are there other tests to check if the battery new and healthy which I can run under linux?
4
votes
1answer
434 views

Does UEFI increase battery life?

I've heard about a better power management when using UEFI instead of BIOS. Is that true? It was about energy consumption being more efficient or something like that. If it is true, has the ...
4
votes
2answers
816 views

Dell battery performs worse under Linux

I have recently bought a Dell XPS Touch. I'm dual booting Windows 7 with Fedora 16 (Verne). Right out of the box, Fedora reports 1 hour 26 minutes of battery life at full charge, while Windows reports ...
4
votes
1answer
177 views

Script for “battery level reminder”

I want to plug in the laptop battery charger when the battery level goes down to 40% and then plug it out when the battery charge level reaches 80%. And for that reason, I need a script that would ...
3
votes
1answer
117 views

How to detect the presence of a battery?

I'm trying to automate desktop setup, and as part of that I'd like to install a battery monitor package only if the machine currently has a battery attached (UPSes and other external batteries are not ...
3
votes
0answers
74 views

Mint battery hogger

Here's my friend's laptop configuration: Linux Mint & Windows 8.1 Intel Core i7-3537U NVIDIA Kepler GeForce GT 740M & Intel HD 4000 4Go RAM All the drivers are up to date Here's the ...
2
votes
1answer
4k views

How to check if my battery is healthy?

My Lenovo ThinkPad T61 is rather old, and a couple of years ago I had to replace the battery as the old one was dead. Now the replacement battery seems like dying a slow death, but I get conflicting ...
2
votes
1answer
1k views

My Laptop Fans drive me crazy on linux and much less battery

I have a Vaio VPCEA36FG laptop and both windows.8 and elementary OS (ubuntu 12.04 kernel) installed on it. when I am in windows everything is just fine, fans work perfectly efficient and my battery ...
2
votes
3answers
397 views

Ubuntu 14.04.1, 14.10 base distros take 30min+ to get to splash screen

Update: I've found a temporary workaround, but I would still like to find a more permanent solution. Workaround: I startout the boot process with the laptops battery removed. If I do this it boots ...
2
votes
0answers
390 views

Battery issues on a Lenovo Ideapad Z460 running Ubuntu 13.10

I've been using Ubuntu 13.10 on my Lenovo for more than 5 months without a problem. Yesterday I disconnected the AC adapter to take the laptop with me to the couch and it simply shut down. So I ...
2
votes
2answers
4k views

Elementary Os its overheating my laptop why? how fix it?

I just finished install Elementary OS and I realize that my laptop is overheating. Before install eOS I used Ubuntu 11.04 and everything was fine. Also the time to charge the battery now its very ...
2
votes
0answers
698 views

Battery monitor always at 100%

I have Linux Mint 15 KDE and my battery monitor always shows full energy, even when it's about to be exhausted. Any ideas why is this happening? acpi output: Battery 0: Discharging, 0%, 02:27:21 ...
1
vote
2answers
567 views

Battery full notification

I am using a Linux distribution, I didn't get any notification even after the battery is full. Is there any custom script to run battery charge status and output a sound notification when the ...
1
vote
1answer
187 views

get system uptime on battery?

How to know system uptime under battery ? so that i can get exact time of battery backup the uptime shows complete uptime (AC/Battery) NOTE : I am using linux Mint 17.
1
vote
1answer
1k views

xfce4-power-manager not updating; ACPI finding an unknown battery but working fine?

I recently upgraded my Asus S56CA Ultrabook and unfortunately my battery indicator in xfce4 stopped working. I am running Debian 8 (Jessie). uname -a gives me this: Linux 3.14-2-amd64 #1 SMP Debian ...
1
vote
1answer
29 views

What does the `maximum error` field in `sudo dmidecode -t 22` mean

When I do sudo dmidecode -t 22 to get some information about my battery there is a field called maximum error For my new battery maximum error is 15 % (cheap replacement from a web store) for my old ...
1
vote
1answer
2k views

My laptop shuts down every time I unplug it

I am using a Lenovo G580 with Linux Mint 14 updated. My laptop shuts off every time I unplug it as if there is no battery even when I am using the BIOS. But, It detects the battery as "84% charging" ...
1
vote
0answers
13 views

Is there a way/program to count the discharge cycles of my laptop battery?

I have read posts online that after a number of discharge cycles (~30 cycles) you must perform a calibration by doing a full discharge, then letting the battery rest for 5-10 hours and then a full ...
1
vote
0answers
37 views

What are the consequences of disabling nmi_watchdog?

My aim was to improve battery life for my laptop. I have already applied some advised modifications like enabling ALPM, and adding pcie_aspm=force drm.vblankoffdelay=1 i915.semaphores=1 at grub ...
1
vote
0answers
150 views

Lenovo T440s battery status unknown, but charging?

I'm trying to configure my Lenovo on arch linux. The last thing I need to do is get the battery 100% working. Right now it appears that the main battery's state is unknown: ...
1
vote
0answers
45 views

How to disable AC power supply from CLI

This article among others suggested the following to prolong battery life: Keep cool. Operate in mid SoC of 20–80%. Prevent ultra-fast charging and high loads (most Li-ion) The main issue here ...
1
vote
0answers
192 views

Linux mint 17 battery information inconsistent

The battery (time remaining) information shown by Linux Mint 17 on my Asus Zenbook UX32LA is inconsistent. When I unplug it from the AC power (99% charged), it says 4:55h, after 1 min it shows 7:15h, ...
1
vote
1answer
39 views

Running applications depending on battery or charging

What are good program or script solutions to run specific applications depending on whether the laptop is running on battery or charging? In order to conserve battery, I automatically want to stop ...
1
vote
2answers
773 views

laptop enery management for improving battery lifetime Linux

I have bought a Lenovo Ideapad that cames with Windows preinstalled. I installed Ubuntu 14.04 to dual boot. There is a tool for Windows called Lenovo Energy Manager that allows to control the charge ...
1
vote
0answers
255 views

How do I stop charging the battery way prior to 100% in OpenBSD?

I'm thinking about using a netbook as an OpenBSD server. I'd like it to have UPS -- so the integrated battery is quite useful. However, I'm very familiar with the batteries going dead very quickly ...
1
vote
0answers
145 views

Battery not detected on my embedded device on reboot

I have an ARM based embedded device with Linux Kernel 2.6.31 running on it. I have seen that while rebooting the device sometimes battery won't get detected and the device will just fail to boot. Any ...
0
votes
1answer
34 views

Battery standby [closed]

I am using a lenovo z570 laptop. In windows I am able to use the laptop for around 2.30 hrs in normal usage.But when I use any Linux distro the battery drains a lot faster. I am able to use only for ...
0
votes
1answer
650 views

How to make sure that Thinkpad discharges external slice battery first?

The thing is that when an external slice battery pack is connected, the laptop first discharges the internal one. This is a problem because then it is impossible to switch between multiple external ...
0
votes
1answer
60 views

Lenovo Laptop won't charge above 59%, Elementary Os Freya (Ubuntu 14.04 LTS based I hope)

When I had windows I used lenovo energy managment and set the battery to charge up to 60% only as it recommended it to me. Yesterday I switched to Ubuntu and now I have this problem. It would be great ...
0
votes
2answers
75 views

How can I reduce my Laptop's power consumption when running Linux?

I just installed Linux on a laptop of mine (it's Lubuntu 15.04 on a Lenovo X201, Core i5 M540, 2GB mem). I'm currently seeing 21580 mW power draw with a couple of apps open (Firefox with a few tabs ...
0
votes
0answers
52 views

XMobar-friendly low-battery warning?

I'm in the process of setting up a laptop running Debian Jesse with xmonad as the display manager. I use xmobar to display information about the current state of the system, including the battery ...
0
votes
0answers
188 views

Battery meter only appears when laptop gets plugged in

The battery meter refuses to show unless I plug the laptop in. If I remove the applet and then re-add it it still won't show. I am using Mint 17 and here is the screen shot of my Power settings and ...
0
votes
0answers
359 views

how to tell hibernate, if battery low

I need to tell to power-manager (with gnome-shell) , if battery is low,pm-hibernate will be run. Now i want to tell via gsettings commmand. How can i do it?
0
votes
0answers
122 views

Under Mint 12 and the latest version of the Enlightenment window manager the battery monitor gadget doesn't report correctly

Can anyone give me a clue where to look to fix it, and, can anyone point me to a good replacement?