The tag has no usage guidance.

learn more… | top users | synonyms

1
vote
0answers
12 views

acpi rtc wakeup on battery (Debian testing)

Setting an rtc alarm via /sys/class/rtc/rtc0/wakealarm leads to successful resume from hibernate when this Asus laptop is plugged in, but when on battery it stays powered off (but resuming from ...
0
votes
0answers
13 views

How to find out when battery stopped charging?

I was wondering if it would be possible to know when (for what period, at what time) my battery stopped charging (e.g. in power outage, when I'm not around). Is there any way to get hold of “history ...
0
votes
0answers
28 views

New battery not charging, driver issue?

I have installed Kali Linux on my Asus X551M. I have just purchased a new battery and installed it (It's internal on these crap machines). The UI shows that the battery is not charging. Furthermore,...
0
votes
0answers
46 views

opensuse leap shutdown does not shut down correctly?

I have a new laptop (lenovo thinkpad t460p) With both Windows 10 and opensuse leap installed. If I shutdown my computer under opensuse leap (using shutdown button or even /sbin/shutdown 0); it appears ...
0
votes
0answers
11 views

Asus X551M Xubuntu 14.04 | battery thresholds

It's come to my attention that lithium-ion batteries lose capacity over time, especially when the user keeps them on a power supply all the time, like myself. I've been searching around and haven't ...
1
vote
0answers
104 views

No perf (linux-tools) for kernel 4.5.2

When I first installed 16.04 LTS, at kernel 4.4.0, I had a decent battery life of about 3 hours average, but I upgraded to 4.5.2 to solve the suspend problem and some other issues, and now it's less ...
2
votes
0answers
59 views

GNOME 3: How to display status of multiple batteries?

T400, Debian Jessie, GNOME 3.14 How can I see both batteries (main and ultrabay) when clicking on the battery icon? I looked for a suitable extension on http://extensions.gnome.org/ , but I didn't ...
0
votes
1answer
141 views

switching from Ubuntu to Arch, battery life reduced by 90%

On my thinkpad t440s I ran ubuntu 14.04 happily for around 2 years, in the beginning having a battery life of over 7 hours, and still now easily 5 or 6 hours. Recently I switched to Arch, and I can't ...
0
votes
1answer
121 views

Better battery saver linux between ubuntu mate and xubuntu

I have tried xubuntu, lubuntu and ubuntu mate. I found xubuntu and ubuntu mate desktop environment good. My main concern is battery saving. Which saves better battery between Ubuntu mate and xubuntu
0
votes
0answers
14 views

Linux has horrible battery life on high end laptop [duplicate]

I'm running 64 bit mint 17.3 cinnamon on my lenovo yoga 2 pro (4th gen i7, 8 gb ram, ssd). It has a quad hd 3200x1800 resolution display. I realize this is most likely bottle necking my battery life. ...
2
votes
0answers
31 views

Is there a way to control the battery charging port of a laptop?

So here's the idea, i want to be able to control this so as to keep the battery wear level to a minimum. At >25% , the battery will be in discharge 'mode' and as the battery reaches <25%, I will ...
0
votes
2answers
155 views

Laptop slow and unresponsive when running on battery

My laptop is slow and unresponsive when running in battery; it works fawless when connected to ac power. In the past I used to have tlp/laptopmode-tools but since Linux 3.x I have uninstalled both. ...
1
vote
0answers
63 views

Battery never stops charging!

I have a Manjaro Xfce latest version. My laptop is a Lenovo Z500. I've recently noticed that my batter is always at %99 and keeps on charging. Is there a way to make it stop charging at 99%, or ...
0
votes
0answers
9 views

Phone battery charging

Smartphone's battery charges when it is linked to an USB port. Is there a way to make the process faster by modifying some parameters in Linux?
3
votes
1answer
26 views

Preventing battery from constant charging in Ultrabook

I'm running Debian Jessie (64-bit) on a newly-acquired Samsung Ultrabook NP900X3E, so far everything's working as it's supposed to. However, the battery life is okay, but not great. Therefore, I ...
1
vote
0answers
16 views

Linux Mint Hangs on Battery Check, Can't Access Terminal

freaking out a bit here. Put in a lot of work tonight on a major paper that I cannot now access. I was just about to go to bed and launched Minecraft for a 10 minute time of decompression and ...
0
votes
0answers
19 views

Thinkpad T61: Udev-rule not working

I'd like to create a special udev-rule to improve the batterylife of my thinkpad T61 by set the brightness to a low value if the power supply is unplugged and my laptop using the battery. Therefore I ...
0
votes
0answers
318 views

Cinnamon Power Management Applet doesn't works

Currently I am running linux mint 17.2 ( Cinnamon Edition) There is problem with PowerMangament Applet. Problem with Cinnamon Power management Applet. While charging : never shows 100 % it suck at ...
51
votes
7answers
10k views

Can a laptop battery explode while using Linux?

I have a 2013 Retina MacBook Pro, and I really want to install Debian on it. I have the know-how and have had at least three Debian systems before this. I am very knowledgable with the command-line ...
1
vote
1answer
375 views

Laptop battery doesnt raise from 59% (ie showing wrong battery stats )

iam using LinuxMint-17.2 Lenovo z500 fixed Nvidia gpu issues (installed bbswitch successfully ), also fixed Screen backlit issue iam only left with this battery issue Battery indicator is not stuck ...
3
votes
1answer
47 views

Where are upower's icon-names defined?

When I run upower -i /org/freedesktop/UPower/devices/DisplayDevice (may be different on different machines, get a list with upower --enumerate), I get output similar to this: power supply: ...
0
votes
1answer
214 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 ...
1
vote
0answers
59 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 ...
0
votes
2answers
280 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 ...
5
votes
1answer
334 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 battery,...
1
vote
0answers
236 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 ...
1
vote
0answers
71 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 ...
3
votes
0answers
555 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: ...
2
votes
0answers
102 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 ...
5
votes
1answer
139 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 ...
4
votes
1answer
267 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 ...
2
votes
3answers
491 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 ...
1
vote
0answers
319 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, ...
3
votes
1answer
287 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 ...
2
votes
1answer
618 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
2answers
47 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 ...
0
votes
1answer
35 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 ...
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 3....
1
vote
3answers
2k 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 ...
0
votes
1answer
1k 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 ...
13
votes
2answers
22k 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 ...
1
vote
1answer
36 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 ...
4
votes
2answers
905 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?
3
votes
1answer
8k 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 ...
9
votes
3answers
567 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 ...
1
vote
0answers
363 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 ...
2
votes
0answers
511 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 ...
3
votes
3answers
983 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 ...
2
votes
2answers
5k views

Elementary OS is overheating my laptop. why? How to fix it?

I just finished installing Elementary OS and I realize that my laptop is overheating. Before I installed EOS I used Ubuntu 11.04 and everything was fine. Also the time to charge the battery now is ...
2
votes
0answers
919 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 ...