Questions tagged [power-management]

Questions related to power management, particularly power saving measures.

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29 views

Ubuntu 20.04 keeps showing a power plug icon [duplicate]

Why does Ubuntu keep showing this icon? Info: Ubuntu 20.04 GNOME dash-to-panel used
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Acer Aspire ES1-512-C32A laptop not powering off with Ubuntu 20.04

Just installed latest Ubuntu 20.04 LTS on my Acer Aspire ES1-512-C32A laptop and all works great apart from the powering off of the laptop. When I perform the power off, I need to physically hold ...
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Ubuntu machine goes into sleep after giving reboot command

I have a problem. I am running the latest ubuntu LTS version: 20.04 on my Dell 7050 Micro, but I have a problem with it. When I enter the command: reboot and press enter, it does the normal reboot ...
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USB-C - Power Delivery configuration options?

Is there any way to see or configure Ubuntu's Power Delivery options? One of my USB-C chargers doesn't provide sufficient power to my laptop. 45W charger - works on an Ubuntu laptop and ChromeBook ...
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1answer
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One power-button to boot windows 10 and the other with ubuntu?

I am trying to find a way that if power button boots ubuntu and another button or pressed in conjunction with the power key can boot me to windows 10 instead. Is there any way that this is possible? ...
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Brightness keeps getting Maxed out constantly, not talking about after restarts, Please Help

The brightness keeps getting maxed out, not sure why. It's at its most prominent when the battery is not being charged and also when I'm watching a video. (It might be occurring only during these ...
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22 views

how to find best suited drivers for your system? [duplicate]

I have been using Ubuntu for about a year now. And the main reason that's pulling me back to windows is the bad battery life (about 60% lesser "100% to 20%" time for the battery to discharge). I've ...
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24 views

Logitech MX Master 3 - Bluetooth connection - Battery status

I'm having issues getting the battery status of my Logitech MX Master 3 mouse, connected via Bluetooth. I've seen many questions related to battery status on this mouse, and some fixes too, but they'...
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How to change the actual command used to suspend the system when I close the lid

I have recently had an issue with suspending my laptop (GNOME on 18.04 LTS) - when I wake from sleep, sometimes my login session gets killed and I have to log in all over again. But I have found that ...
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2answers
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Battary draining fast

I'm using Acer Aspire E 15 E5-576G. I installed Ubuntu last year. After installation, I noticed that my battery drains faster than usual. Because of that, I had to remove Ubuntu and use Windows ...
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ubuntu 20.04 not getting locked after lid close

I have installed the latest ubuntu 20.04 and recently noticed a bug that whenever I close my lid the screen only goes blank instead of going into hibernate or suspend. Earlier after reopening the lid, ...
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1answer
29 views

How to optimize battery life when using a docking station?

I have a relatively new Thinkpad X1 Carbon with Ubuntu 20.04. Usually, I use it in a docking station, but will frequently have to take it out to change offices for video conferences etc. This leads to ...
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Rapid Battery drainage and overheating

I bought a new Acer Swift 3 SF314-55G, the day before yesterday. I dual booted it with ubuntu 20.04 LTS Desktop version. ANd started using ubuntu itself. The laptop started heating up, even with ...
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Random shutdown, logs empty [closed]

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, ...
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Restart TLP service without rebooting system

TLP helps make my laptop more conservative on power when on battery power, and more performance focused when on AC. The issue is that when I want to enable/disable TLP or change some settings with ...
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Macbook Pro (Ubuntu 20.04): VPN Disconnects After About 5 Minutes

I have been using a VPN connection on an old ThinkPad with Ubuntu 18.04 (and before that 16.04) for several years without any problems and the VPN connection was stable for hours (if not days). After ...
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Ubuntu 19.10 shutdown but not power off (Asus)

I try $ shutdown -P now Watch video please video notebook shutdown Ubuntu 19.10 My asus is FX505DD, i use NVIDIA Driver 440.83
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1answer
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20.04 — power settings for display — it doesn't turn off

I installed 20.04 and went to the settings tool for displays and set it to go blank after 5 minutes. It never turns off.
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RX 570 running really hot on Ubuntu 20.04

so my 570 is running really hot doing regular tasks, like watching videos on youtube, viewing PDFs etc. I currently have the default open source drivers installed. I presume this ain't normal? I am ...
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26 views

Energy Saving - System Settings Module not working

New here, new to Kubuntu, and I'm loving it! I'm running into an error though, and I can't find an answer anywhere. I'm technically running 19.10 Ubuntu with kernel 5.3.0-40-generic and I basically ...
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217 views

-[20.04, 2008 White Unibody Macbook] Battery charges to 55%, then declares it is full until it is unplugged showing it at 55%

The battery on my laptop is basically brand new, we bought it new from a non-apple brand around a year ago. The laptop charges properly, however, when it reaches 55% it believes it's full and quits ...
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Laptop freezing when running out of battery on ubuntu 20.04

When running out of battery and trying to bring the system back up again, I'm faced with a black screen and fans on full. I've configured hibernate using guide which sets the swap uuid in the grub ...
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Login screen goes blank during startup when laptop is on battery

Whenever I start my laptop on battery (without attaching it to a power source) After I punch the disk encryption key just before entering the login window the screen completely goes blank. The next ...
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What is the best way to observe energy usage of a program on Linux?

I am doing research and would like some information about the energy consumption of two algorithms I wrote, but I don't have the money for special-purposed devices. I plan to run both programs for 5 ...
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28 views

The screen stays dark after I reopen the lid

I have an e-machines E727 laptop and lubuntu 16.04. I disabled all kind of automatic screen locking and I set it not to suspend when I close the lid. When I close the lid and reopen, I would expect ...
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Ubuntu 18.04 automatically logs out when I close the laptop lid

I have 18.04 on my lenovo legion. Usually, when I go to bed I close the lid and the computer goes into suspend/sleep and when I wake up, I unlock it and pick up where I left. But very recently- last ...
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Ubuntu 18.04 on Dell XPS is draining power very fast

I installed ubuntu version 18.04 on my dell xps laptop and the battery drain is just too fast. The lap top is only a few months old and I am mostly running browser based applications. After a full ...
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Ubuntu 18.04 - Screen doesn't to sleep; session doesn't lock

Recently I discovered that my system doesn't let my screen go off, as in power saving mode. I have this setting right as I always did - the usual then 10 minutes. What happens is that the screen dims ...
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Charging Indicator Blinks Unexpectedly on Tecno WinPad 10A - Ubuntu 20.04

I have a Tecno WinPad 10A which I recently installed Ubuntu 20.04 on it. It was previously running Windows 10 1909. The machine has a charging indicator that lights on steadily while charging, never ...
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Lenovo ideapad 340-17API not boot on battery power

My notebook Lenovo ideapad 340-17API not load if I try power on battery. Windows 10 is loaded perfectly. I found a lot of materials abount same problem with Lenovo notebook other models, but never ...
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2answers
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When cutting external power supply, I cannot ssh connect to my Ubuntu 20.04 desktop on Dell XPS 13 7390 laptop

I installed sshd in my Ubuntu 20.04 minimal desktop on Dell XPS 13 7390 laptop, through command sudo apt install ssh. And I used Xshell software on another physical machine in Windows 10 to SSH ...
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How to put ubuntu in power saver mode

I have ubuntu desktop 16.4 installed. And I'm using it as a samba file server, but it is consuming a lot of power. It switches off its display after 5 minutes. Samba is using wireless network not ...
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battery is showing 0% with an exclaimation mark in Toshiba Satellite C850

I am new to Ubuntu, I have installed it recently, but my battery is showing 0% with an exclaimation mark although my laptop is fully charged. Please help me out.
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Ubuntu 20.04 Battery not charging when in hibernate mode

Until Ubuntu 19.10 all went fine, but when updating to Ubuntu 20.04, and thus the 5.4 Linux kernel, my battery does no longer charge in hibernation mode (it does charge when the laptop is on or off). ...
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20.04 desktop pc suspend isse

I've been using Ubuntu 20.4LTS for a bit now and found that either clicking suspend in the power controls or typing sudo systemctl suspend in the terminal does not suspend (sleep) my pc properly. If ...
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1answer
71 views

20.04 LTS Since upgrade from 19.10 laptop doesn't suspend anymore after lid close

My Lenovo P50 laptop used to suspend nicely when I closed the lid on Ubuntu 19.10. After the upgrade this doesn't work anymore. When I execute the command sudo systemctl suspend then the laptop still ...
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7 views

Laptop shuts down when charging while suspending

My laptop shuts down when charging in suspend mode. This doesn't happen in Windows. But only in Ubuntu.
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26 views

L380 Yoga wont boot to Ubuntu 20.04 unless I disconnect the power cord

Today I installed Ubuntu 20.04 on my Lenovo L380 Yoga laptop. The install went fine and all of the hardware seems to work until I shutdown or restart the unit. If the power cord is connected during ...
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Ubuntu 20.04 - Disable laptop built in monitor slows down the system

I am trying to connect my laptop to two external monitors and disable the built in monitor, in order to work only on the two external monitors. However, when I disable the build in monitor, all the ...
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Desktop wakes from S3 sleep at random

My Ubuntu desktop won't stay in S3 sleep for more than a few hours before waking. Sometimes it wakes immediately from sleep; sometimes it takes a few hours. It's never stayed asleep for more than ...
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How do I schedule boot ubuntu 18.04LTS?

I have tried the WakeOnLan Application but it does not work in 18.04 LTS as provided in following solution: Scheduling StartUp and ShutDown I have dual boot windows 10 and Ubuntu So I cannot change ...
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8 views

Ubuntu OS doesn't always restart

I am running Ubuntu 18.04 LTS and lately, after restarting the system (even from restart function or command line), i get only a black screen . Laptop needs to be shut down from the power button then ...
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powercap intel-rapl:0: package locked by BIOS, monitoring only

I am trying to replace value in the file of constraint_0_power_limit with new value using echo "45000000" | sudo tee constraint_0_power_limit_uw That file is under /sys/class/powercap/intel-rapl/...
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My laptop can't handle transition from power to battery

I have an Asus X541U laptop (Ubuntu 18.04) that shuts down minutes after I unplug it from power, even if the battery is full. However, turning it on unplugged causes no issue and the computer does ...
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21 views

my charge is running out very quickly

helo I am using ubuntu 20.04 lts.my charge is running out very quickly, and the fans are running all the time. How do I solve this problem
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Battery Life on Ubuntu sucks

Its been a week since I have installed Ubuntu everything is great except battery life. I have installed TLP and Powertop and disabled nvidia graphics yet battery does not lasts more that 3 hours. On ...
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28 views

How to add power governors?

my cpu is Intel n3710 , on Ubuntu 20.04 , I installed cpu freq utils , but it shows available cpufreq governors as only powersave and performance. Can we add other governors like ondemand , ...
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Kubuntu 20.04 randomly will not turn screen on when resuming from sleep

lspci -k output: https://pastebin.com/AhGX7SKd here is the syslog of the event when it happened https://pastebin.com/Dxphr07f the time where the issue starts is upon wake at 19:39 which is line 412 ...
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How to create a modal notification when the power off button clicked during plugged charger?

I have a problem when I want to create a modal notification when the power off button or keyboard key is pressed during plugged charger. The rules; When button "Power Off" is clicked / Keyboard "...
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Screen does not blanks after timeout [duplicate]

After upgrading to 20.04, my screen does not blanks after the given timeout. When I performed the upgrade, I got a notification of the upgrader that screen blanking would be disabled. After the ...

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