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Questions tagged [power-management]

Questions related to power management, particularly power saving measures.

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7 views

MacBook Air 6,2 wakes slowly (suspends when I tell it to resume)

I've been dual booting my MBA with Ubuntu (first 17.10, now 18.04) and have a fairly stable system. One problem I've had for some time is a slow wake/recovery from sleep. This is unpredictable and ...
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0answers
21 views

Buggy powersave in Bionic 18.04

I'm having problems with the powersave mode, I hope someone can help ;D PREVIEW INFO: I have installed: tlp, powertop, nvidia privative drivers When I start the laptop on battery mode the graphic ...
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0answers
8 views

Powertop shows fingerprint device on top on power consumption list (Dell xps 9570) (18.04.1)

I couldn't turn fingerprint device off via bios and ubuntu. Is there a way to fix this or is this a bug?
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27 views

Ubuntu 18.04 external screen close lid action

I started using external display on my Ubuntu 18.04, and I found the problem where after closing lid Ubuntu automatically switches to the second screen instead of suspending/hibernating the system. I ...
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1answer
46 views

wifi hardware disabled after suspend mode

Firstly I am a new user of Ubuntu. I am having a problem with the WiFi. I installed Ubuntu alongside Windows 10 in dual-boot. Firstly I didn't have WiFi connection so I installed the drivers by myself....
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1answer
25 views

Ubuntu goes suspended after login if lid is closed

There is an ubuntu 18.04 on my notebook. It was upgraded from 16.04. The notebook's lid is closed and it is connected to a monitor. When I switch on the notebook and login to the system, half of the ...
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1answer
86 views
+50

How to increase the update frequency of upower (Power-Statistics)?

Working on Ubuntu 18.04. To get the discharge rates I was comparing powertop and the inbuilt Power-Statistics app that seems to use upower. Powertop updates its results every few seconds. It is also ...
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19 views

How to set Ubuntu 18.04 to leave 5% charge in notebook battery?

We recently bought a Lenovo notebook, which has two batteries (inside + one quickly changeable outside). I can see that Ubuntu 18.04 is using only one battery at a time, consumes it fully, then it ...
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2answers
48 views

Laptop battery critically low cannot remove notification

I installed and used Linux for the first time - Ubuntu 18.04.01 lts. My laptop's battery is almost dead sitting on 0% and the notification keeps popping every 5 minutes. Is there any way to disable ...
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0answers
9 views

Lubuntu 18.04.1 Dual screen: only one screen goes to sleep

after upgrading from Lubuntu 17.10 to 18.04.1, only one of my two screens goes to sleep after a while. The affected monitor seems to only go into "blank" mode. It does not standby, as by quickly ...
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0answers
28 views

How to power on external USB hard drive

I have an external USB hard drive on my Ubuntu 18.04. I am remotely managing the system with Teamviewer (I have ssh access as well). I want to remotely power down my hard drive and then power it on ...
1
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1answer
44 views

Kubuntu 18.04 wakes immediately after suspend (unable to suspend)

Just installed fresh Kubuntu 18.04 on a new Dell XPS 15 (9570). Disk is encrypted and secure boot is on (if this makes any difference? some things I've read seem to suggest it might). I'm struggling ...
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1answer
32 views

Ubuntu 18.04 Suspend loop

I just installed ubuntu 18.04 on my razer laptop (2017 14") and everything was working fine (for the most part) until I ran into an issue that seems to trigger once I suspend my laptop (by closing the ...
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0answers
22 views

Ubuntu (likely) reporting incorrect battery level

A few days ago, Ubuntu (18.04 Bionic Beaver, kernel 4.15.7-041507-generic) started displaying an incorrect power level for my battery. How do I know? I don't, but my Dell XPS13 has a little button ...
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0answers
15 views

Stop power “suspend” when certain applications are running?

I'm running Ubuntu 18.04 server with Gnome desktop on a HP Elitebook. The machine has 2 x 1Tb SSD's and 16Gb of Ram as I need to run a couple of VM's. At the moment I use Virtual Box. The system is ...
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0answers
13 views

Laptop screen goes blank on reducing brightness

Immediately when I reduce brightness, the screen goes blank. The screen also goes blank when I plug out and plug back in the AC adapter. Only the screen goes blank, the laptop is on. And it is not ...
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0answers
25 views

Change function for “Power Button”

I want to change functionality for Power Button in Ubuntu 18.04. I need following: when someone press Power Button, logged in user should be logged out, and specific user automatically logged in (...
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0answers
19 views

fam15h_power-pci-00c4 high power

I used lm-sensor to see temperatures of my computer this is my result: k10temp-pci-00c3 Adapter: PCI adapter temp1: +37.6°C (high = +70.0°C) radeon-pci-0100 Adapter: PCI adapter temp1: ...
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0answers
45 views

Can Ubuntu keep my battery healthy?

I primarily use my laptop with the charger plugged in. In windows i had the "Dell Command | Power Manager" that gave me the option to run the laptop on AC power, which extends the health of the ...
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0answers
45 views

Another question about Hibernate in 18.04 (not a duplicate)

I have a fresh install of 18.04 on a brand-new high-end laptop. Hibernate works using sudo pm-hibernate By "works" I mean that it saves the system to disk, and powers down. Upon reboot, the session ...
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0answers
26 views

cpu usage is high under battery power ubuntu 18.04

I've noticed since the very 1'st day I installed ubuntu 18.04 my battery life surprisingly reduced.so I checked system monitor. I noticed that only one of my CPU core is always run on high usage while ...
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2answers
177 views

Ubuntu 18.04 battery life

I know there are many questions on this argument, but I want to be sure that the answer for old ubuntu version can be used for this version, so this is the question, how can I improve my battery life ...
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0answers
79 views

Battery draining too fast with Linux

I tried to use Mint some time ago, but I went back to Windows due to a strange drain in the battery (With Windows ~3.5 hours and with Mint ~50 minutes). Now I'm trying to use Ubuntu 18.04 and it ...
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1answer
44 views

TLP (Power saving) - Will configuration remain after uninstall?

As the title says: will selected configuration remain after TLP uninstallation? For example, if I configure TLP to disable USB ports in AC and Battery modes and then I uninstall TLP, will USB ports ...
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0answers
88 views

Ubuntu 18 keeps on restarting automatically (triggered by moving the laptop) [closed]

I have a ubuntu 18.04 system on an Asus ZenBook laptop. I am facing the issue that my laptop keeps on restarting again and again. It started an hour ago. I have tried shutting down once but problem is ...
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1answer
34 views

How to adjust battery threshold on ubuntu 18.04?

I tried tlp and set START_CHARGE_THRESH_BAT0=0 STOP_CHARGE_THRESH_BAT0=60 and it didn't work I have a Asus vivobook s14
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0answers
16 views

Some applications disappear reopening laptop lid

I update some days ago to Xubuntu 18.4 and I set to switch off the screen when the lid of the laptop is closed but when it is reopened some application windows disappear and the processes stay active. ...
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0answers
12 views

Laptop screen does't wake up after closing lid

Hi everyone is my first question here although I have been using Ubuntu for a couple of years, my knowledge about programming and Ubuntu are very limited so please have a little patience. Also, keep ...
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1answer
23 views

External harddrive unmounted during transmission and now it can't be seen / simultaneously, power indicator disappeared

First - I will try to provide as much info as possible, but I received my computer as a gift, so I am not the most computer savvy... I am running Ubuntu on a partitioned Chromebook, for the last...2+ ...
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0answers
23 views

System is getting shutdown when battary is low (Ubuntu 18.04)

My system is getting shut down when the battery is low, I found this on below link also: https://help.ubuntu.com/stable/ubuntu-help/power-lowpower.html.en I need to set it to suspend or hibernate ...
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0answers
4 views

Change security settings, when lid closes but still using a second screen?

I just recently installed Ubuntu 16.04 and I have been trying to get the setting for what happens when I close the lid of my Chromebook, but so far nothing has worked. I have my Chromebook connect to ...
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0answers
30 views

16.04 horrible battery life all of a sudden

I've been using ubuntu for the last month or so on my laptop and it's been working fine, up until last week. I am using a Dell XPS 15 9570 Nothing has changed except I followed this guide https://...
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0answers
19 views

CPU Scaling governor on tlp

I'm configuring tlp on Ubuntu, and I'm wondering if "powersave" governor will affect my device and not reducing the performance speed. If it's reducing the performance is it possible to have the ...
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0answers
90 views

Computer won't wake up from sleep mode (Ubuntu 18.04.1)

For reference, I have Ubuntu LTS 18.04.1 If I ever leave my computer alone (so it enters sleep mode), the majority of instances it will not properly wake up if I hit the power button. That is, my ...
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0answers
31 views

Not able to turn off power saving option in Ubuntu 18.04

Since I updated to Ubuntu 18.04 LTS, I keep loosing my WiFi connection after a brief period of inactivity,Later I noticed in power saving options there is an option to turn off WiFi to save power, I ...
4
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1answer
122 views

Is it possible to bring these chip temperatures down?

Today I installed kubuntu 18.04 on my laptop, and I'm having some problems with it. One of the problems is the high temperature of two chips. When running the command sensors in the terminal I get the ...
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0answers
61 views

Ubuntu 18.04.1 - wrong battery status when boot in battery

Since I upgraded ubuntu from 16.04 to 18.04.1 found that when booting in battery, when I plug in the ac adapter, does not detect that is charging altough displays the correct percentage, starts ...
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0answers
23 views

Does power pause work the same as hibernate [duplicate]

Does the pause option (->power ->ALT-key ->pause) in Ubuntu 17.10 work the same as hibernate in Windows 10?
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1answer
79 views

Set different blank screen timeouts when on battery or ac

is it possible to set different blank screen timeouts in Ubuntu 18.04 with Gnome when on battery or ac? The power settings menu provides only one field which is applied always, no matter of the ...
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0answers
42 views

Suspend sometimes doesn't work

Sometimes, suspend doesn't work. The only fix I found was to reboot the computer. Closing laptop lid or manually suspend will make the screen black for a few seconds then, the login screen appears. ...
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0answers
98 views

Windows Vs Ubuntu 18.04.1LTS: in T470 and XPS 15: More battery usage. High usage CPU/TLP is not solve problem? Same issue with Mint vs Win10?

I installed Ubuntu 18.04.1 LTS dual boot on windows 10 Enterprise than I like it but I decide to uninstall it. Because with out doing any thing I got high CPU GPU usage and battery life than in ...
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1answer
22 views

How to start apcupsd at boot?

This should be simple, but I am stuck figuring it out. I am using apcupsd to manage my system in case of power outage. I know how to start the server: sudo /etc/apcupsd/apcupsd start (See the manual ...
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1answer
47 views

Automatically turn on monitor at certain time

When I lock my session, the monitor turns off after a while. How do I set it up so that the monitor are scheduled at a certain time (i.e at 8 am) to turn on to show the lock screen ? Ubuntu 18.04
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1answer
53 views

xubuntu 18.04 system freeze screen off or lid closed

I have a Dell 7373, with a Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz. I'm running a fairly stock version of xubuntu 18.04, kernel 4.15.0-33-generic. (It's the latest kernel I got from an apt upgrade) ...
0
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1answer
104 views

Wifi interface disappears after suspend (Intel Dual Band Wireless AC 3165)

My computer's wireless interface, and the wifi system tray icon, seem to be disappearing after going into suspend. I was wondering if anyone could take a look at these logs and tell me what's going ...
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1answer
36 views

Can i make my 3 monitor set-up merge to a single monitor if the other two are not available

I currently work with a three monitor set-up (side by side by side) on an Ubuntu 18.04 LTS Desktop. I am presently upgrading some hardware that's not all computer related but want to get this sorted ...
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0answers
71 views

How can I lock CPU frequency in Ubuntu 16.04?

It's a Server (Dell PowerEdge R730xd) The CPU is Intel Xeon E5 2630 v4 2.2GHz The OS and kernel is Ubuntu 16.04 and 4.15.0-33-generic The current settings are as follows: intel_pstate is disabled ...
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2answers
179 views

How can I disable automatic screen dimming when the wireless mouse has low battery?

Similarly to this question, I find that when a wireless mouse with low battery is plugged into a laptop running Ubuntu 18.04 on battery power, the screen automatically dims after 15 seconds of ...
4
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2answers
44 views

How to find a program which is preventing sleeping?

I am noticing that recently my laptop does not go to sleep/lockout after its configured X minutes of inactivity like it did in the past. I suspect some program (like media player does) is preventing ...
3
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1answer
110 views

Poor battery life and performance due to incorrect CPU frequency scaling

lscpu shows a minimum CPU speed of 1600MHz, rather than 400MHz as the actual minimum. This is absolutely killing my battery life (I get about 2-3 hours rather than the 8-10 I get under Windows on the ...