Questions tagged [battery]
133
questions
0
votes
1answer
26 views
Arch linux: restore session with running programs after running out of battery
I have Lenovo notebook with Arch linux. When I run out of battery and my notebook dies, after starting it. It freshly boots new session. Is there a way to restore previous session and continue in it ?
...
0
votes
3answers
60 views
My laptop battery does not charge above 79%
I have had a Dell Latitude-5501 (with Linux Mint 19.3 MATE) laptop for about a year. A day or two ago it stopped charging over 79% plus the battery drains pretty quickly.
I do not remember installing ...
0
votes
0answers
43 views
upower: fix energy-full battery level
Usually, I can use my laptop for some hours when not connected to the battery charger. But recently, battery life got worse very quickly. The battery level decreases quickly. But on the other hand, ...
1
vote
1answer
50 views
How to activate battery conservation mode, linix mint 20.1, Lenovo Legion7i
I've found a number of posts across forums and on archwiki that reference the following solution for this laptop model
echo 1 > /sys/bus/platform/drivers/ideapad_acpi/VPC2004\:00/conservation_mode
...
1
vote
1answer
33 views
Can you compensate for incorrect thermals being reported to the kernel to prevent throttling?
I have faulty battery firmware or something, because my otherwise healthy battery now refuses to charge normally, and what is worse, 80% of the time, it has me bizarrely throttled down to 400mhz per ...
0
votes
0answers
48 views
Battery Charging Thresholds on Lenovo G580 Running Linux Mint
I have a Lenovo G580 laptop. While running Windows, I set charging thresholds using Windows tools. I later wiped Windows and installed Linux Mint 19.2 and have been thrilled with Linux. I have now ...
0
votes
2answers
62 views
How to check battery history in a text format on debian?
I am using the command upower -i /org/freedesktop/UPower/devices/battery_BAT0 and acpi -V to check the battery current status. It shows it has history and statistics.
How can I check the history?
I ...
0
votes
0answers
23 views
Debian battery jumps from 30 to 0
While my laptop is on the battery and reaches 30% (sometimes 32 or 36), it jumps to zero and shuts down after 1 minute. and as i plug in the AC adapter, it shows 30 again. even once on Ac it jumped ...
0
votes
1answer
40 views
How is battery percentage calculated in Debian with i3?
I have written a bash script to alert me whenever the battery percentage gets lower than some predefined threshold. However I've realized than the battery percentage that I compute is different (~6% ...
0
votes
2answers
35 views
Where can I find info about specific file(s) on the system?
I was building a simple battery level monitor (in bash) for my personal i3blocks implementation. It's quite obvious that the info I need is available in files in the /sys/class/power_supply/BAT0 ...
0
votes
0answers
13 views
How to match AC and battery settings
As a new Linux user, I posted this question on both AskUbuntu and the Ubuntu Forums, but with no luck, so I'm hoping someone here can help me.
I have an ASUS A15 with Ubuntu 20.04 installed. I've been ...
1
vote
1answer
195 views
What is difference in unit between energy-full vs charge_full?
I have 2 different results of maximum batery energy:
upower -i $(upower -e | grep -i bar) | grep energy
energy: 18.061 Wh
energy-empty: 0 Wh
energy-full: 33.4021 Wh
energy-...
0
votes
0answers
459 views
how to check the battery percentage of Apple airpods and case on linux?
is there any command for checking AirPods battery status on Linux.
I am developer of i3blocks-airpods
Just want to know if there is a way to check battery status?
2
votes
2answers
155 views
How do I fix the issue of delayed detection of charging in Plasma5?
I have the latest Pop!_OS 20.04. I recently I installed KDE Plasma on my machine.
The only thing that has been annoying me is once my battery gets low, and I plug in my charger, KDE takes almost half ...
0
votes
0answers
98 views
Ubuntu slow boot up andconsuming power
I recently installed Ubuntu 20.04 on my Asus Rog which is having NVIDIA graphics driver via dual boot. My Ubuntu boot up is very slow. From what I have heard, Ubuntu doesn't take up much time booting ...
0
votes
0answers
37 views
Random shutdown, logs empty
This is about Pop_OS, the Ubuntu fork, but since there is no askpopos and the reddit has more questions than answers, here goes:
I installed the system two weeks ago and it has been running smooth, ...
2
votes
2answers
700 views
Horrible performance on battery with intel_pstate driver
EDIT: Ubuntu (mate) 20.04, intel_pstate driver. Computer is I am using a razer blade stealth ultrabook (early 2019), with intel core i7 i7-8565U.
I am encountering odd behavior (extreme slowdown) ...
1
vote
1answer
49 views
how to express a range of numbers (11%-20%) in a battery notification script
I'd like to have a script that notifies me when my battery is at or above 90%, at or below 20%, and at or below 10%. I cobbled together the following, substituting zenity for notify-send so that I ...
0
votes
0answers
221 views
Ubuntu 18.04 laptop battery not detected
I have installed Ubuntu 18.04 on the SD Card of my surface pro but the battery indicator does not show.
What I've tried from browsing online:
1. I've installed gnome tweaks and selected battery ...
0
votes
1answer
89 views
Why doesn't inotifywait report modifications made to battery capacity file?
I want to know when my battery charge changes, and I don't want to simply run a daemon that checks on it every five seconds.
I've tried running inotifywait -m /sys/class/power_supply/BAT1/capacity, ...
1
vote
0answers
31 views
KDE Neon ThinkPad X1 Yoga Gen 4, black screen with cursor on resume from suspend on battery
I am running KDE Neon on my ThinkPad X1 Yoga Gen 4. Whenever I resume from sleep/suspend, UNLESS it is plugged in on AC, it only resumes to a black screen with a cursor, and nothing else. I have ...
2
votes
0answers
188 views
Battery won't charge when ON, Arch Linux
I run Arch Linux 5.5.13 on my laptop. A year ago, I changed the original battery for a new one (maybe not the official one).
It has been some time that I have the same problem. Charging the battery ...
1
vote
1answer
378 views
Why CPU temperature so much lower when on TLP Battery mode instead of AC mode?
I'm using Ubuntu 18.04 and TLP (Linux Advanced Power Management).
When I have my laptop plugged and battery inserted and TLP is in auto mode (it detects the cable and goes AC mode), the CPU ...
0
votes
1answer
63 views
Kubuntu crashes when running on battery
I recently bought a new HP Pavillion laptop (AMD Ryzen 5 processor, Radeon Vega Mobile graphics, and 12GB of RAM) and installed Kubuntu 18.04 alongside Windows 10. Ubuntu runs perfectly fine when the ...
0
votes
1answer
157 views
how to system-beep as low battery warning?
I'd like a debian laptop with LXDE to do a system beep every 10 or 30 seconds once the battery reaches a critical level. is that possible?
1
vote
2answers
108 views
Increasing battery life on Linux
I got myself a new laptop, which is pretty powerful, but the battery life is horrible on both Windows and Linux. I was wondering if there is a way to increase battery life on Linux.
I already tried ...
0
votes
0answers
36 views
External HDD spinning even when laptop lid is closed
I am having a 160GB SATA HDD in which I have installed Kali-Linux, last night I just closed the lid of the laptop considering that will continue my work tomorrow from here but in the morning I noticed ...
1
vote
0answers
351 views
Is it possible that a Logitech wireless mouse connected over bluetooth to a linux machine consumes more power, than when connected to other OS?
I have got a Logitech M590 connected over Bluetooth to my Ubuntu 19.10 (up-to-date), and it turns out that the battery of the mouse runs out after about two months while Logitech advertises two years ...
1
vote
1answer
427 views
How does “acpi” or “upower” decide the battery percentage?
Correction Notice
I'm sorry to bring this issue up based on a misremembering the cell count in series. There were not 4 cells in series, but 3 cells. Silly me. For 3 cells in series, the maximum ...
0
votes
0answers
34 views
Battery icon not showing AND keyboard stopped working
My battery icon is not showing, and my laptop keyboard has stopped working after I updated. The boot takes longer than normal as well.
I am running Ubuntu 18.04 and my upower -d output is:
Device: /...
2
votes
0answers
433 views
How to calculate power consumption from battery stats
I set up the arch linux on my new msi prestige ps42 laptop. To my disappointment, the battery life pretty much quickly deteriorated. After first 2 months of usage, the battery could supply the laptop ...
0
votes
0answers
160 views
ASUS N552VW battery level stuck, not charging
Laptop Asus model N552VW. Ubuntu 19.10. The laptop works from AC for all 3 years of its usage (the battery is not unpluggable easily, so it stayed all the time).
Problems
Sometimes the battery level ...
1
vote
0answers
76 views
Newly swapped debian laptop has working battery, but loses power when unplugged from ac adapter
I recently installed Debian Bullseye on my Thinkpad T430, and everything works great except for the battery. When the AC adapter is unplugged, the computer loses power. the battery works fine when put ...
1
vote
2answers
178 views
Lenovo laptop battery only charges to 68.1% capacity?
I have a Lenovo Z50-75 which supports battery charge limiting. Before I installed Linux, I had my battery set in conservation mode. I don't know if that had any effect on the matter but my battery ...
0
votes
1answer
196 views
Linux Mint: lower screen brightness on low battery
I'd like to make screen brightness lower on low battery. There's no such options in power settings. Alternatively, I may set the system to shut down in such situation, but that's undesired. Is there ...
2
votes
1answer
251 views
How to disable GPU without bbswitch
BBswitch is apparently dead with the last commit being 5 years ago and it no longer works with more modern kernels. During shutdown, it just hangs the system. Nouveau doesn't support power management ...
1
vote
1answer
534 views
X1 Carbon Battery drains on suspend
I typically suspend my laptop between sessions to save battery without powering off fully.
I have a new 2019 Lenovo X1 Carbon, running Manjaro Linux 5.2.0-1 and when I suspend my machine with
...
1
vote
1answer
56 views
Find a power_supply of type
My kernel driver needs to access battery's properties (get_property, set_property).
Problem: How to find the battery's struct power_supply?
I only find power_supply_get_by_name but there can be ...
1
vote
0answers
334 views
Switch to second (build in) laptop battery if capacity is under 20%?
I got my new Lenovo T480 laptop which has two batteries: one internal and one external. The used Linux is Arch Linux.
If I use the battery the behavior is that the first battery is used down to 5% ...
0
votes
1answer
282 views
AC power connection not recognized, but battery doesn't drain
Just bought a new laptop acer predator helios 500 with AMD Ryzen CPU. Installed linux with a recent kernel (4.19) and it seems it’s not able to detect when the power cable is connected to the laptop.
...
0
votes
0answers
26 views
LM 19 x64 shuts down unexpectedly just before lightdm or cinnamon starts up, because I installed a new battery
LM 19 x64 shuts down unexpectedly just before lightdm or cinnamon starts up. This happens after installing a new battery for my laptop (DELL Precision M4700), and I had to keep the AC adapter plugged ...
0
votes
1answer
964 views
How do I set battery charging threshold in linux on non Thinkpad laptop? [closed]
I know that charging battery near 100% is bad.
However, a charging threshold can be set by using tp_smapi or tlp.
Unfortunately, this package is only for Thinkpad.
How can I set this for a non-...
1
vote
0answers
1k views
Limit an MSI laptop battery charging to 80%
How can I limit battery charging to 80% capacity?
Above thread provides several solutions for ThinkPad laptops. Mine is an MSI GF72 8RE-032. The Windows 10 drivers&utility pack seems to provide ...
0
votes
1answer
903 views
Switch batteries in Thinkpad before performing a deep discharge [duplicate]
I'm currently looking for a possibility to stop my T480 from deep discharging my external battery, before switching to the internal battery. It should switch to the internal battery at a percentage of ...
1
vote
1answer
126 views
Battery alarm command is not working in LXDE?
I am using lxde desktop for my ubuntu 14.04. I have used synaptic package manager to uninstall some old files of qemu. But after that, I realize that some packages are removed from ubuntu eg: python ...
2
votes
1answer
102 views
Prevent battery drain from constant write IO churn by browsers
For some reason, common browsers (Chromium is particularly bad, but Firefox isn't much better) generate constant IO load, particularly writes, on my Debian system. This is the case even when the ...
2
votes
0answers
833 views
KVM Windows guest battery
I've installed KVM on a laptop with Debian 9. The guest is the latest Windows 10 (1803) with all updates and VirtIO drivers installed.
The issue is : Windows doesn't know he's on a laptop. Then, I ...
2
votes
1answer
415 views
Checking battery level when ACPI has problems
I am running Debian Buster (testing) / Sid on an Iball Excelance laptop (an Indian company). I initially had problems with the laptop trying to suspend and then freezing immediately after finishing ...
0
votes
1answer
2k views
Command to get details on charge and time remaining for two batteries
I have a laptop with two batteries. I would like to get combined details on the two batteries. In particular, I'd like the time remaining before both batteries run out of charge and the percentage ...
4
votes
2answers
2k views
How to force a Thinkpad to draw charge from internal vs external battery?
My T450s Thinkpad has two built-in batteries--one hot-swappable and one inside the laptop. Lenovo calls the former "external" and the latter "internal". When not plugged in, the external battery ...
