Questions related to power management, particularly power saving measures.

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0
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1answer
64 views

My power/battery indicator applet is a red exclamation point

I've just upgraded from 14.10 to 15.10 and my power indicator applet is messed up. It shows up on my panel as a red circle with an exclamation point in it. I've tried it with different icon themes, ...
0
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0answers
22 views

Windows battery features on Ubuntu?

I have an Asus ux303LB and the battery management features that the Windows OS allowed me to use were great, however since I've started using Ubuntu I noticed that the battery management isn't as good....
3
votes
1answer
45 views

Scheduling power off and on of my headless server

I want to schedule power off at 23:30 and power on at 6:30 everyday. Here are some problems: If I run such command sudo rtcwake -m off -l -t $(date +%s -d 'tomorrow 06:30') it switches off the pc ...
0
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0answers
77 views

Xubuntu 15.10 - fail to suspend

I am running xubuntu 15.10 on an lenovo s10e. I must say I use suspend feature quite a lot. Sometimes though when I suspend, screen stays black, all netbook's lights stay on and also fan stays on. ...
3
votes
1answer
41 views

Can the System Drive Be Spun Down After Certain Idle Time?

I am trying to spin down my HDD after a certain amount of idle time to save power since I am running Ubuntu Server on a laptop. I know that it is possible to spin down additional drives, but according ...
0
votes
2answers
65 views

Setting Screen Timeout on Ubuntu Using the Command Line

I'm running Ubuntu Server on a laptop. I want to set the timeout to 0 or close to that so that the screen will be off unless I wake it.
1
vote
1answer
486 views

Change power options for Ubuntu Server via terminal

I have installed Ubuntu Server 14.04 on a laptop. I want to change some power management options from the terminal (I don't have GNOME or a GUI installed, and I don't want to either). The current ...
0
votes
0answers
100 views

pm-hibernate does not fully power off…but hard reset brings back session. How do I fix this?

I am using a Thinkpad W510 with Ubuntu 14.04. When I execute sudo pm-hibernate, the screen shuts off and is processing with just a black screen and a cursor (with the power light on) for about 15 ...
2
votes
1answer
88 views

Can i get more battery life than this?

router@router:~$ lsb_release -a && uname -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 15.10 Release: 15.10 Codename: wily Linux router 4.2.0-23-generic #...
0
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0answers
48 views

Ubuntu restore from suspend sometimes doesn't work, requires two reboots?

I am running Ubuntu 14.04 with the latest updates installed. When I attempt to resume from suspend nothing happens. I have to press the power button to start the pc normally. However, when it boots ...
3
votes
0answers
76 views

Laptop dying during suspend after 2 hours. Suspend/hybrid not working

So I have a yoga s1 and recently installed ubuntu. Twice now when I close the lid and go into suspend the computer will rapidly drain power from the battery in the span of 2 hours then die shortly ...
2
votes
0answers
75 views

Power Suspend inconsistently working

I have a Ubuntu 14.04 desktop. I rely on the power suspend to suspend my system when I am inactive for longer than 30 minutes. For some reason, this doesn't always work. I came to my system ...
0
votes
0answers
102 views

Shutdown and reboot not work

I installed Ubuntu 15.10. on an Ideapad 100. I encounter a problem whenever I shutdown or restart; I get past the shutdown text screen and the screen goes black, my computer doesn't power off. I have ...
3
votes
2answers
29 views

How to check how long the last uptime if it's not shutdown correctly?

I need to check battery life of some batteries while powering my machine (a BeagleBone). My plan is to plug it in, leave it, and check some time later. If it's dead, then I need to know how long it's ...
0
votes
1answer
41 views

external 3TB USB disc will not stay powered off

Running Ubuntu desktop 14.04, and having problems powering down an external USB 3TB drive. hdparm -y /dev/disk/by-uuid/736gyh3juhg64 doesnt work because of G_IO: bad/missing sense data, sb[]: ...
1
vote
1answer
41 views

All programs are closed after lid is closed

I have Lenovo Y570 with Ubuntu 15.10 installed on it. Whenever I close the lid and then open it, I see the log-in screen, and if I type in my password, I find that all my programs from last session ...
1
vote
0answers
135 views

Ubuntu 14.04 battery indicator showing status of the mouse battery

I am using Ubuntu 14.04.3 LTS 64-bit and the battery indicator always shows the status of the mouse battery when my laptop is plugged in. I tried every setting possible and even re-plugged the nano ...
0
votes
0answers
75 views

Lenovo ThinkPad 11e uses power while hibernated and wakes when on open lid

I have a Lenovo ThinkPad 11e, running Ubuntu 14.04 with XFCE desktop. When I hibernate the system an image is written to disk, and when the system is restarted it resumes from this image. Everything ...
0
votes
1answer
194 views

HDD Standby - High Load Cycle Count

I know that there are many question about this topic. However, I did not find a solution for my situation. What I want to achieve: My HDD (Hitachi Travelstar 5k1000) in my notebook should go into ...
1
vote
0answers
60 views

How to make udev update battery status more often?

Ubuntu battery icon uses about 1-2 minutes before recognizing charger being plugged in or out. How to make the battery status update more often so that it recognizes the charger immediately. The ...
0
votes
0answers
52 views

How can I select which battery discharges on my laptop?

So I have two batteries in my work laptop, Lenovo T450s. I have Ubuntu Mate 15.10 on it. It always discharges one of the batteries before going on to the next one. Is there any way to set thresholds ...
0
votes
1answer
172 views

Asus zenbook UX501 hangs when lid is closed

I just installed Ubuntu 14.04 on my Asus UX501JW. I've managed to fix most of the initial problems (hotkeys). But I still have the problem that the computer freezes if I close and open the lid without ...
1
vote
0answers
59 views

My Battery Precentage keeps going Up and Down?

I recently started using Ubuntu 14.04.3 LTS on my Asus K53E laptop, and it was working pretty well since September. But in November I noticed the original battery started get old & hold less of a ...
0
votes
0answers
67 views

Slow text rendering (scrolling) in several editors after enabling dynamic power management

I'm running Ubuntu 14.04 LTS on an HP EliteBook 8530p laptop. Ever since I found out how to enable the dynamic power management on the open source radeon driver, it helped greatly to reduce ...
4
votes
1answer
87 views

How to shut down the computer safely by pressing the power button?

So this is pretty simple: when I press the power button whilst the machine is on, it comes up with a menu (of which one of the options is to shutdown) However, I just want it to just start shutting ...
3
votes
1answer
170 views

How can I disable suspend during download, but the screen will still shut down? [duplicate]

I'm on Ubuntu Gnome 15.10. I am regularly downloading large files (~800 MB), but I have a very slow Internet connection. It usually take a relatively long time to download it. Since I am not ...
0
votes
0answers
44 views

Fix bad battery level detetction

I'm using Ubuntu 15.10 on a MacBook Air, early 2014 model. The battery level detection has never been very good but at least it could properly detect when the computer was running on DC or AC power. ...
1
vote
0answers
225 views

MacBook Pro 15" won't wake up after suspending or closing the lid in Ubuntu 15.10

Whenever I close the lid of my Macbook Pro 15" (2015 model) or suspend it, my screen becomes black but all my keys stay lit up. I then cannot wake up the laptop or get to the login screen. The only ...
1
vote
0answers
185 views

Ubuntu Gnome 15.10 doesn't suspend

I'm having an issue with Ubuntu Gnome 15.10 (also had the same issue with 15.04 before making a clean install of 15.10). When closing the laptop lid, the computer shuts down instead of suspending. ...
0
votes
1answer
56 views

Battery behaving erratically

I have got Ubuntu 14.04 on my HP Pavilion g4 2049tx laptop. The battery indicator is behaving erratically. It goes to critical mode (<10%) immediately after reaching 57%. It charges up pretty ...
0
votes
0answers
53 views

PC not powering off after shutting down

I have a Media PC running the Ubuntu minimal install. This problem occurs for quite a while now and across multiple installs. Right now Im running ubuntu 15.10 with kernel 4.2.0 because I thought it ...
0
votes
1answer
26 views

cut power to a drive?

I am currently trying to turn off the power to one of my hard drives but am unable to via hdpram, but I have had some success using the gnome-disk-utility. I am wondering what command does gnome-...
0
votes
2answers
892 views

Asus zenbook UX303UB does not resume from suspend (ubuntu 14.04) when charging

I've just purchased Asus Zenbook UX303UB which came with Windows10. I replaced the original system with Ubuntu 14.04.03 LTS and now I have one issue - the laptop does not resume from suspend when I ...
4
votes
1answer
139 views

Turn off screen by pressing the power button

Is there any way to configure the power button so it turns the screen off? I now use a script running xset dpms force off to turn off the screen. Is it possible to edit /etc/acpi/powerbtn.sh ...
0
votes
1answer
85 views

Battery saver mode in ubuntu and mint [duplicate]

I have gone through sites and instaled various battery saver tools like tlp lui I actually dont remember their exact name. But non of those helped to save my laptop battery. Windows 8.1 gives me 3 to ...
0
votes
0answers
54 views

USB Autosuspend & External Soundcard

I'm currently experiencing a problem with my external sound card. It works perfectly fine as long as there's something playing, be it via a media player or browser videos. The problem is, after a ...
1
vote
0answers
24 views

Can't access Ubuntu 15.04 Power Settings screen

Opening Settings works, all the sub-categories work, but if I go to System Settings and then click the Power icon, the Settings app hangs and has to be force-quit. No crash report is available--it ...
0
votes
0answers
68 views

Problem uninstalling laptop-mode-tools

I am new to Ubuntu and was playing around with some battery saving tools. I first installed tlp, tried it and uninstalled it. Then I got laptop-mode-tools using tar and uninstalled it using ...
0
votes
0answers
47 views

Ubuntu server on laptop stops responding when I close lid

I have been trying for a couple of hours to get an ubuntu server to not freeze when I close the lid. When I close the laptop the server freezes and I can't restore it, I have to press the power button ...
0
votes
0answers
111 views

Battery Indicator does not show correct state

My battery indicator does not show the correct state. The battery indicator, and the indicator in power settings, both remain unchanged from the state the machine is switched on. If I switch on ...
0
votes
0answers
52 views

PC won't come back when lid is closed and monitor attached

I am using Xubuntu and regulary lock my screen at work. It is attached to a external monitor (primary display) and the lid is closed. After locking it only comes back when I open the lid and press ...
0
votes
1answer
100 views

Ubuntu 15.10, if I suspend from toolbar it's ok, if I close laptop lid when I resume it keeps logging me out

So as the title states: Ubuntu 15.10, if I suspend from toolbar it's ok, if I close laptop lid when I resume it keeps logging me out / going to lock screen after 10-20 seconds. I have a razer laptop,...
0
votes
1answer
107 views

Dell Inspiron 5423 CPU low-power state Non-Dell Power Adapter

So I've been trying for hours now to get the CPU out of the low power state. The Processor is a Dual-Core with HT @1.8ghz however because im not using a Dell Adapter its missing the protocol chip that ...
0
votes
0answers
128 views

Strange fan behavior on 15.10 in HP Pavilion laptop

I recently installed Ubuntu 15.10 on a new HP Pavilion laptop. All the time, even when the temperature given by sensors is low (< 30C), I hear a fan. The sensors command does not give any data on ...
0
votes
0answers
111 views

Lid Closed Suspend Ignore issue - 14.04.3

I have tried many various methods to get it where the computer ignores the lid closing. Essentially, I don't want it to sleep. At all. Here's what I've tried: Changing the power settings. Power ...
0
votes
0answers
66 views

Automatic Wifi switching

On my laptop, I often need Wifi connection for several seconds (to load a page) only to switch it off immediately afterwards to save power, since I'm reading and I won't need any connection during a ...
1
vote
1answer
231 views

sedutil suspend

I'm using sedutil and LinuxPBA for full disk encryption on my Samsung Evo 850 SSD. Everything works fine, except that I am unable to suspend while encryption is "enabled" since the disk loses power ...
0
votes
1answer
125 views

Dell Inpsiron 15 running Ubuntu 15 runs hot and battery drains fast

My laptop runs at around 55 degrees (Fahrenheit) after its been left idle, upon startup its only about 38. On Windows 10, it's only up to about 45 degrees at max. My battery life used to be about 3-5 ...
0
votes
0answers
17 views

Why does urfkill does consume so much CPU occasionally?

I have noticed that some times urfkill consumes suspiciously much (100% or near) CPU resources during rather long periods of time on my Ubuntu 15.10 laptop. I am curious of what can be the cause of ...
0
votes
0answers
40 views

installed 14.04 LTS ubuntu and now computer can not go into suspend.

installed 14.04 LTS ubuntu and now computer can not go into suspend. closing the lid also does not suspend. my computr has no disk drive, fyi. not skilled in linux but can enter terminal scripts if ...