Questions related to power management, particularly power saving measures.

learn more… | top users | synonyms (1)

0
votes
1answer
148 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
47 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
34 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
155 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
55 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
48 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 ...
3
votes
1answer
61 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
110 views

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

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
41 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
200 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
179 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
54 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
50 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 ...
0
votes
2answers
691 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
117 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
71 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
36 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
23 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
47 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
40 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
82 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
41 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
93 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 ...
0
votes
1answer
90 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
123 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
96 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
58 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 ...
0
votes
1answer
162 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
117 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
39 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 ...
0
votes
1answer
31 views

Double suspension on wake up

Good morning, I have an ASUS laptop (550 serie) with an odd behavior: when I wake it up (lid closed) I get the screen, I manage to input my password but after a few seconds it goes in suspension ...
0
votes
0answers
38 views

upgraded to Ubuntu 14.04 LTS and computer no longer Suspends

I am a lay user of ubuntu. I just upgraded to 14.04 LTS and now my computer will not suspend. When I click 'Suspend' on my menu, the screen blacks out as if it is going to suspend, then boots right ...
1
vote
0answers
35 views

Command to find out which program is keeping ubuntu awake or waking it up

Windows has powercfg -lastwake and powercfg -requests to find out what last woke up windows or which program last requested keep awake. Is there Ubuntu equivalent?
0
votes
0answers
13 views

Kubuntu power options causing odd shutdown glitches

I've set my old laptop running Kubuntu 15.10 to sleep when I press the power button. If, however, I let it sleep for more than about 10 minutes, it logs out instead. How can I fix this??
0
votes
0answers
43 views

upower -d command not working on my Ubuntu 14.04

It is showing following warning: (upower:8781): libupower-glib-WARNING **: Couldn't enumerate devices: Message did not receive a reply (timeout by message bus) (upower:8781): UPower-WARNING **: ...
3
votes
1answer
91 views

Computer does not suspend until network cable is disconnected

After pressing "suspend" in unity menu computer (desktop) suspends, power LED turns off, disks are stopping. Then in less than second it resumes. Searching gives solutions like this laptop fails to ...
0
votes
0answers
59 views

Original MacBook Air Running 14.04 Won't Turn on Backlight after waking

I have the original MacBook Air running Ubuntu 14.04 (Which is running really well, except for one thing.) I seem to have everything working, except waking the computer from a lid close. After I ...
1
vote
0answers
91 views

pm-utils hooks not working to un/load modules on suspend on Ubuntu GNOME 15.10, alternatives?

Suspend & hibernate are not working properly as long as I have an SD card inserted into my machine. Removing it is not a sustainable option for my set-up. The internal SD Card reader of my ...
0
votes
0answers
43 views

Is there any GUI for Intel P-state fine-tuning?

I like using indicator-cpufreq, but I'd also like to use Intel P-state, as it sound like promising. The problem is, you can't really control it's behavior. I've tested it a lot and came to conclusion ...
0
votes
1answer
128 views

Macbook Air overheating on firefox

Just installed Ubuntu 14.04 on my 2014 Macbook air .. when opening up firefox it starts to heat up a little like from 49°c to 55-56°c .. and then when streaming video on youtube it just goes up to ...
2
votes
1answer
124 views

how to disable low battery alarm?

i have the low battery alarm disabled in the BIOS settings on my lemur laptop, but the alarm still sounds when the battery is low. The sound is a very loud and annoying beep that repeats every couple ...
0
votes
1answer
44 views

Power Outtage - Kubuntu 15.10 [closed]

Can Kubuntu 15.10 normally recover from a mains power failure? Computer will not boot normally - always goes to Emergency Mode. In the emergency mode i tried the options there - no result. Solved. ...
0
votes
2answers
422 views

Does TLP really help increase battery life?

I am using TLP for power management. But I suspect it doesn't really help extend the battery life on my Dell Inspiron 5346 with Ubuntu 14.04, so I ran sudo tlp-stat once with display brightness ...
0
votes
0answers
85 views

Ubuntu 14.04 sometimes does not suspend when laptop lid closed

Ubuntu 14.04LTS. Set to suspend when lid closed. Mostly it works - often I can use it for a week, suspending and resuming with no problems. But sometimes something changes and it stops working: ...
0
votes
0answers
76 views

Intel HD 4000 stuck at 1050-1100Mhz 14.04.3

Samsung NP550P5C-S02 14.04.3 kernel 3.19 xorg 1.17 nvidia-352 mesa 10.5.9 So intel HD 4000 is stuck at 1100Mhz and CPU idle temperature is about 55-60C. When gaming on my nvidia ...
0
votes
2answers
211 views

Intel Power Management not working on ubuntu 14.04

I am new to Ubuntu. My laptop is Lenovo Z570 Intel® Core™ i3-2348M which i bought 4 year before. Still working as a hero :P Recently i switched to Ubuntu 14.04 64 bit. But it ended up in burning my ...
0
votes
1answer
50 views

Why is my laptop losing so much power while in suspend mode?

Last time I used my laptop, I had it plugged in, and so at the time I closed the lid and put it into suspend mode, it had 100% power. However, when I opened the lid now, the a day later, and resumed ...
3
votes
0answers
18 views

How to play sound before suspending laptop?

How do you configure Ubuntu 14.04 to play a short sound just before it suspends? I bought a laptop which I later found had no visible status LEDs when the lid was closed. On past laptops, I've had ...