Questions related to power management, particularly power saving measures.

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1answer
14 views

How to consume less power in ubuntu?

I noticed when I installed Ubuntu that it consumed more power, so I want to know how to reduce power consumption.I want the steps please.
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1answer
12 views

How to make ubunu in power saver mode?

when i type this command in the terminal "sudo aptitude install pm-utils" to use power saver mode it tells me "sudo:aptitude command not found " what can I do to fix this ?
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1answer
45 views

Go to sleep based on screen activity

So, the behavior I want is: 1. Screen goes blank when inactive for [specified time]. 2. Computer suspends when screen is inactive for [specified time 2]. With the default setup, these two can be ...
0
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1answer
17 views

Ubuntu server detecting electricity outage?

I am in the planning stage for setting up my server and have some doubts. Firstly my network is something like this: One parent PC connected to the internet and 3 other child PCs which are not ...
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0answers
25 views

Hibernation works only when connected to AC power

Please help me understand this part of syslog when I try to wake up from hibernation. My specification - 4 GB of RAM, 8 GB of linux-swap, intel core i5-4200U, NVIDIA GeForce GT 750M. The problem is ...
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1answer
15 views

how to increase MaxPower of specific usb port

it takes long while to charge mobile phone by usb port. how do i specifically increase MaxPower of usb port ? this cmd help to understand MaxPower of usb port root@ROHIT-PC:/home/rnztx# lsusb ...
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0answers
23 views

When I leave my laptop lid open, how do i may it so that it doesn't suspend? [duplicate]

It just keeps blackening out when I'm afk for 10 minutes or so. How can I stop that?
3
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1answer
34 views

Prevent machine from sleeping when SSH connections are on

I am trying to save power by switching desktops to suspend mode when they are inactive. But many desktops are also accessed via SSH by their owners. There is a wakeonlan solution deployed to enable ...
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1answer
40 views

Simulate power button using command?

When I hit the power button on my laptop (Ubuntu 14.04.1 without any modifications), I receive a pop window saying Goodbye, what would you like to do? Lock Suspend Restart Shutdown How can I get ...
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0answers
4 views

Wake up command as ordinary user

Yandex disk cloud drive daemon started via ~/.config/autostart/Yandex.Disk.desktop. It works well except the PC waked up after suspend. Yes, I work with /etc/pm/sleep.d scripts when I need to do ...
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0answers
51 views

14.04 - Laptop screen goes blank when lid shut

I'll be totally honest, I have googled this question...I have read responses...but I'm still pretty confused...anyway... So, anyway, I want to hook up my laptop with HDMI to my TV...that part works ...
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2answers
126 views

How to write a script to “listen” to battery status and alert me when it's above 60% or below 40%?

I want to make a tool that alerts when battery is below 40% or above 60% so I can start/stop charging accordingly. I know some tools alert when battery is low, that's not enough. Is there a tool ...
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1answer
67 views

14.04 LTS can't suspend anymore

I changed the "what to do when laptop's screen is closed" option under Power last night. It was at suspend and I switched it to do nothing. The problem is, I can't get it back to suspend anymore! ...
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0answers
14 views

Set Brightness to 0 when lid closes

is there a way of setting the brightness level to 0 or blanking the screen when I close my lid (without suspending the system). I just prefer it that way, since I listen to audiobooks while driving ...
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2answers
32 views

let utransmission run even after lid closed?

How do I set my settings such that even if I close my lid (Laptop) My downloads don't stop or pause in utransmission I have set the setting in power options to not suspend after closing lid still ...
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0answers
24 views

Ubuntu sleeps and wakes repeatedly on critically low battery state

When the battery is critically low it just suspends itself and wakes again automatically repeatedly in a loop. And i need to be like very very fast to click the shutdown button to turn down the ...
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0answers
37 views

Ubuntu 14.04: hibernate consumes power

Upgraded from 12.04 to 14.04 (not new install). In 14.04, enabled display of hibernate choice in power menu. This works as well as pm -hibernate. Followed the steps in ...
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0answers
73 views

Ubuntu 14.04 does not recognize my battery

For the last 3 years I've been using a Samsung notebook. I was using Ubuntu 13.10 until 2 weeks ago. Then I decided to format and install Ubuntu 14.04 LTS. Everything was working great, until the ...
0
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1answer
41 views

How to avoid the automatic disk check every 30 reboots? [closed]

It it has to do a disc check from being powered down 30 times like that.I have to do it that way cause it wont power down regularly and I'm running Linux ultimate edition x64 2.3. I know its out dated ...
1
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1answer
106 views

suspend error on 14.04 LTS

I've looked around and seems like various problems around suspend are wide spreaded for 14.04 release, nevertheless I haven't seen exactly my problem reported, nor my laptop model mentioned. So, the ...
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2answers
40 views

Excessive Power Consumption by ethernet socket

Recently I have been having problems with power consumption in Ubuntu, I am not exactly sure when this started but roughly about two weeks ago. Idle my laptop used about 9-10W of power, or at least it ...
3
votes
2answers
77 views

What exactly is TLP doing that default system config wouldn't?

All the info about TLP on the surface looks more like advertisement and marketing to me, I can't see any detailed comparison to default configurations. What are the precise differences compared to ...
0
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1answer
94 views

The 'resume after suspend' problem

I recently moved back to Ubuntu. And it has seriously improved. Everything is so smooth and fast. Except, I have this issue, like so many others, I cant wake up after suspend while on battery. With ...
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0answers
46 views

Suspend broken: pm-suspend fails due to /sys/power/* being a Read-only file system

My System 76 laptop running 14.04 won't suspend. Running sudo pm-suspend fails with the following in /var/log/pm-suspend.log: Running hook /usr/lib/pm-utils/sleep.d/94cpufreq suspend suspend: ...
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0answers
45 views

Battery & Fan Issue

System ASUS N56VJ Ubuntu 14.04 - 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Issue: Sometimes when I start up my laptop, the fan turns on at full ...
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1answer
63 views

Black display after wake from suspend via closing the lid

I have bought a new HP 15-G002AX notebook recently, with Processor: AMD A8-6410 APU with AMD Radeon R5 Graphics × 4 Graphics: Gallium 0.4 on llvmpipe (LLVM 3.4, 128 bits) I am using ...
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0answers
135 views

xfce4-power-manager not updating; ACPI finding an unknown battery but working fine?

I recently upgraded my Asus S56CA Ultrabook and unfortunately my battery indicator in xfce4 stopped working. However, the battery indicator in the system tray is not updating at all. If I start the ...
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0answers
90 views

problems resuming from suspend on macbookpro11,1

I've installed ubuntu 14.04 on my new macbookpro (11,1), and I'm having power-management problems. The biggest one is that after suspending by closing the lid, when I open it, it either never wakes ...
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1answer
62 views

Why is my wireless network adapter acting in a strange way? (Ubuntu 14.04)

I have a laptop with Intel Centrino Advanced-N 6235 wireless network card, and I'm on Ubuntu 14.04. For almost a week I have had a strange problem with my wireless card. When I plug in the power ...
2
votes
1answer
63 views

Please explain the parameters 'noexpose' and 'cycle' in xset

I have been trying for a long time to prevent my screen from blanking every 20 minutes. I understand there are many interlocking layers of applications that can do this and it is not straightforward ...
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0answers
33 views

How to find out what's wrong with my battery?

native-path: BAT0 vendor: ASUSTEK model: M50--24 power supply: yes updated: Vi 08 aug 2014 21:42:17 +0300 (30 seconds ago) has history: ...
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4answers
155 views

Laptop Battery Draining Too Fast. Laptop is too hot

I have HP ProBook 4540s with CPU Intel(R) Core(TM) i3-3110M and GPU AMD Radeon HD 7650M and Intel(R) HD Graphics 4000. (Intel® Ivybridge Mobile also.) OK, the problem is that the laptop is getting ...
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0answers
53 views

How can I set a different screen timeout time when on battery than if I am plugged in?

Currently, Ubuntu 14.04 only provides a single option: "Turn screen off when inactive for: x minutes" that applies regardless of whether my laptop is plugged in or not. I want to change this setting ...
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0answers
47 views

How can I make my PC hibernate when idle? 14.04

I see that this was asked some time ago for 11.04. The answer there didn't help since the answer used gconf-editor to find a key called /apps/gnome-power-manager/actions/, which doesn't exist when I ...
1
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1answer
21 views

Can I change actions upon inactivity and timeout for that from command line?

How do I set the policy about what action should be taken if the computer is inactive for some time. This can be easily done from GUI, via Power Manager. I am trying to do this from command line. I ...
0
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1answer
92 views

Resume from suspend requires hard reset [closed]

Most of the threads I've found relating to this problem state that the machine powers up but the screen remains black. Not so in my case. The problem I am experiencing is this. When testing the ...
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0answers
35 views

Sleep Ubuntu Server after X time of inactivity

I recently set up an Ubuntu 14.04 SAMBA server as a home file server. It will not be getting used but maybe a couple of times a day so I don't want to have everything powered on while it doesn't have ...
0
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2answers
16 views

Ubuntu and windows dual-booted no battery warning on windows

Sorry if this may be of topic. I got windows 8.1 and Ubuntu dual-booted on my ASUS x550ca. Whenever I'm booted in to Windows while I am on battery power there is no low battery warning warning. It was ...
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0answers
362 views

Lubuntu 14.04 Tired about suspend e hibernation “power manager not authorized”

Below the post, last configuration I used, it seems works well. I've Lubuntu 14.04 installed on my netbook (aspire one ao-532h). I am using it like a desktop with external display and input devices. ...
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0answers
48 views

Laptop Battery Not Detected [Shuts Down When Disconnected From Charger]

I recently installed Ubuntu 14.04 LTS on my laptop and was able to get everything working, but my battery suddenly stopped working. I thought it just wasn't charged, but even after charging it ...
0
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0answers
33 views

Getting Linux to downclock and lower the V-core of my CPU at idle

So when I boot into my Windows 8 partition, Windows automatically downclocks my CPU and lowers it's V-core so that the idle temps of my i5-4570 CPU go down to 25 C. Now on Ubuntu on the other hand, ...
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0answers
33 views

How to make the system detect correctly charge status?

Yesterday, after correctly performed the installation of (UEFI) ubuntu 14:04 LTS 64-bit in dual-boot with Windows 8.1 64-bit on my laptop asus A551LN I had a serious problem: the operating system did ...
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0answers
18 views

System-level energy/power preferences

In Windows, mmc allows to set energy/power preferences for all users at a system-level: they can't change these settings until an administrator unlocks them. Is there any way to do the same in ...
0
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1answer
55 views

Hibernate on lid close

I want my laptop to hibernate when I close the lid. I can only choose between suspend and nothing, and both do nothing actually when I close the lid and open it nothing's changed. I also tried sudo ...
1
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1answer
62 views

Ubuntu 12.04 comes out of hibernate/standby randomly on Dell XPS 13

I have an ubuntu 12.04 laptop and it comes out of hibernate or standby randomly. For example, yesterday I selected hibernate, closed the lid and put it in my computer bag. 24 hours later, it is ...
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0answers
66 views

Novatech Elite N1716 /usr/sbin/pwmconfig: There are no pwm-capable sensor modules installed

For some reason pwm doesn't detect my fan sensor modules. Here is the output of pwmconfig $ sudo pwmconfig # pwmconfig revision 6166 (2013-05-01) (...) /usr/sbin/pwmconfig: There are no pwm-capable ...
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0answers
15 views

Suspend disabled

When I click the power options, the ability to select suspend/hibernate is disabled for the laptop lid close action: I believe I am missing some packages to make this work. What are they?
1
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1answer
145 views

Lenovo X1 Carbon with Ubuntu 14.04 wakes from suspend by itself after 3 hours

My machine seems to wake up from suspend by itself, at irregular intervals. Causing the power to die out, and machine turn off. It is quite the annoyance, when the machine is in my case and it wakes ...
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0answers
58 views

Ubuntu 14.04 Shutting Down when Idle

I did a PC build a couple of weeks ago, installed Ubuntu 14.04, no problems. Recently, I've been doing some work that required that I leave the machine running some scripts over night. When I would ...
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0answers
51 views

/usr/lib/pm-utils/power.d script not working

I'm using ubuntu and trying to get pop-up notifications when power adapter removed. I placed my script at /usr/lib/pm-utils/power.d and made it executable, but the script seems not called when I ...