Questions related to power management, particularly power saving measures.

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1answer
312 views

How to get xfce4-power-manager to work in Lubuntu 14.04?

I've had nothing but issues with it. On install, everything went fine, but I couldn't modify the lid action, and the suspending was very buggy - sometimes it worked, sometimes not. Then I found out ...
4
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2answers
227 views

How to get a notification when computer is not charging?

My laptop battery sucks, and lasts up to 5minutes without charging. Sometimes the charger falls out without me knowing, making the computer shut off unexpectedly. Is there a way to get a notification ...
-1
votes
1answer
63 views

Notebook keyboard gets hot only on the left side!

I have the Asus VivoBook S551lb, a thin notebook, with intel i7 4500u 1.8 ghz , intel 4600m internal graphics, and nvidia 740m discrete graphics. It looks like the fan placed in the left side , after ...
0
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2answers
22 views

File swipped away after power faliure

We are bunch of guys (9) working on a project. All of us save our files to a single computer which has windows share enabled on the project folder. There is a problem of power cut out in our place and ...
0
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2answers
65 views

Ubuntu and battery life

Currently I'm using a Netbook (Dell Latitude 2100 non-touch scree) (2GB RAM, 1.6GHZ Intel Atom Processor, 60GB HDD, originally Win Vista Business, currently WIndows 7 Pro and a windows experience ...
1
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1answer
75 views

Computer not suspending when inactive in the main log-in prompt

My computer is set to automatically dim the screen and lock after 10 minutes, and suspend after an hour of inactivity. That works fine - but only once I've logged in. If I switch the computer on and ...
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0answers
39 views

Ubuntu 14.04 upgrade won't suspend

I have upgraded to Ubuntu 14.04, since then my computer won't suspend. When I click suspend from the menu it just goes to a locked screen. It is using up my battery. I have to totally close down ...
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0answers
65 views

USB 3.0 ExternalEnclosure Unmounts at random

Title says it all. I noticed the drive was unmounted, so I got to looking through dmesg and found: [31080.516164] usb 4-3: USB disconnect, device number 3 [31080.760493] usb 4-3: new SuperSpeed USB ...
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1answer
151 views

Horrible battery life with Ubuntu 14.04 on ThinkPad

I've purchased a Lenovo ThinkPad S540, which has according to Lenovo '9 hours of battery life'. I was really happy when I tested the device running Windows 8.1, and the battery worked for 6 hours. But ...
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2answers
146 views

How to lock without turning the screen (monitor) off?

Due to a recent bug, each time my screen turns off, I cannot get it back on. Currently, the screen starts turning off after the computer is locked - which effectively means that I cannot lock my ...
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0answers
160 views

Xfce power manager in Xubuntu 14.04 doesn't react to my choices

Okay, so I chose to make it so that when my laptop lid closes and I'm on AC (my power cord is plugged in) it will do NOTHING. But when I close my laptop lid .. it just suspends. I've tried it like a 8 ...
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0answers
56 views

Power management advanced tool

I'm searching for a tool that has a lot of configurable options. It should be able to detect events like cable plug-in/out, save many profiles and change options like CPU frequency, screen brightness, ...
0
votes
1answer
54 views

What's the difference between putting display to sleep and switching off the display?

When I mess with my power options, I have the options: Put display to sleep when computer is inactive for: Switch off display when computer is inactive for: What is the difference between ...
0
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0answers
68 views

Automatic Screenlock keeping screen on, ignoring timeout setting

I'm on a Macbook Air 4,1 running 14.04, with surprisingly minimal trouble so far. However there is an issue with the screen - when I set the 'Lock' on, in 'Brightness and Lock', when I close the lid, ...
0
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1answer
55 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
24 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 ?
0
votes
1answer
95 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
24 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 ...
0
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0answers
33 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 ...
-1
votes
1answer
108 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 ...
4
votes
1answer
85 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 ...
0
votes
1answer
60 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
9 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
119 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
277 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 ...
1
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1answer
81 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
35 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 ...
0
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2answers
44 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 ...
2
votes
2answers
2k views

Intel Corporation Wireless-N 7260 card dies randomly

On Ubuntu 14.04 32bit, after some up-time my wireless card stops working. Sometimes it helps to stop WiFi in the nm-applett (at the top right corner) and restart it to get a new connection to my WiFi, ...
0
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0answers
50 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 ...
1
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1answer
176 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
46 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 ...
2
votes
1answer
197 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 ...
0
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2answers
78 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
111 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
votes
1answer
209 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 ...
0
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0answers
131 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
56 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 ...
0
votes
2answers
116 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 ...
0
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0answers
269 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 ...
0
votes
0answers
200 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 ...
1
vote
1answer
82 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
189 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 ...
0
votes
0answers
53 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: ...
1
vote
4answers
544 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 ...
2
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0answers
133 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
78 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
25 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
votes
1answer
130 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 ...
0
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0answers
88 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 ...