Questions related to power management, particularly power saving measures.

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16 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?
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1answer
153 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
52 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 ...
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2answers
78 views

Bettery life issue with Ubuntu 14.04 LTS amd 64 bit [duplicate]

i have dell 5537 i5 4th Gen laptop. after installation of ubuntu 14.04 LTS amd 64 bit version on my laptop. my laptop battery life is decreasing very quickly .and life bet-try is showing 1 ...
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0answers
52 views

How to install a orig.tar.gz installed package

Hey all I downloaded this file (http://packages.ubuntu.com/lucid/laptop-mode-tools) but can't seem to be able to uninstall it. I tried looking online as well as the README file but there is only ...
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1answer
32 views

In xfce4, how to set the critical value on the battery level?

In xfce4, xfce4-power-manager handles hibernation or suspend when battery power is critical. xfce4-power-manager-settings enables one to change the action but not the critical value. How to set the ...
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0answers
28 views

Can I enable hibernation mode in my case?

I was reading this question on how to enable hibernation because I'm interested in sending the computer to hibernate instead of power off when power is low. After trying sudo pm-hibernate, the ...
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0answers
21 views

Is there a way in ubuntu to setup different power plans and switch between them easily?

Im looking for the Ubuntu equivalent of Windows 'power plans'. In Win 7/8 I was able to set up custom plans and switch between them. It was also possible to choose what happened when my laptop was ...
2
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1answer
209 views

Is there any battery management software to work with a laptop plugged to AC power so as to save the battery lifetime?

I was used to remove the battery of my laptop whenever I worked with my computer plugged to AC power and to load the battery with the computer switched off so as to save the lifetime of the battery. ...
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0answers
350 views

Lenovo G480 has a 64°C temperature, should I worry?

My Laptop is a Lenovo G480 (20157) and came with Windows 8 pre-installed. I cleared it out and made Ubuntu 14.04 (LTS) my primary OS. Everything is awesome except the heating problem. My laptop burns ...
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0answers
131 views

Lenovo x1 carbon (gen1) battery life

I'm using an Lenovo x1 carbon (gen1) and have Ubuntu 14.04 and tlp installed. I'm really dissapointed about the battery life. Some people claim to have 6 hours ...
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1answer
49 views

How to set Ubuntu with Cinnamon to hibernate when lid is closed with external monitor?

If I have external monitor attached, closing lid won't hibernate my computer. In normal Ubuntu I could edit this in power settings but how could I set set my Ubuntu with Cinnamon to do this?
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0answers
24 views

How to disable Suspend and Hibernate functions? [duplicate]

I don't use neither suspend nor hibernate PC function at all. I do only shutdown and reboot. However it comes into my way sometimes, i.e. when I accidentally click on "Suspend" instead of "Shutdown" ...
1
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0answers
143 views

Black screen on resume after suspend, pm_test is fine [closed]

I'm using Ubuntu 14.04 on a Lenovo IdeaPad S205. When I resume from suspend-to-RAM, fan goes on but screen stays off. The computer does not respond to anything except a hard shutdown (press and hold ...
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0answers
67 views

Battery drain and over heating on Dell XPS L502X

I own a Dell XPS L502X and it works fine if is booted under "Windows 7". No issue(over-heat or quick-battery-drain) is observed while using the laptop. After the recent installation of Ubuntu ...
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4answers
529 views

Low battery life in Ubuntu 14.04

I did a clean install of Ubuntu 14.04, along dual booting Windows 7. I love Ubuntu but then suddenly the power went out and the next thing I know my battery ran out of juice in less than 30 ...
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0answers
61 views

Fan not working increasing CPU temperature

I have Dell Vostro 1014 laptop. I am using Ubuntu 12.04 LTS. The fan of my laptop is not working anymore and increases the CPU temperature upto 85 degree Celsius. I followed the solution given on this ...
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2answers
61 views

How to enable power failure notification?

I need to enable power(A/C) failure (off-line) and power on (on-line) notifications, like this notification I searched and tried to do that but i didn't find any successful articles. i use this ...
2
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1answer
121 views

How to disable the feature of automatic system shutdown in 60 seconds?

After pressing the physical power button on computer it's shown a 60 second countdown dialogue box: "This system will be automatically shutdown in 60 seconds" How can I disable this feature? The ...
0
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1answer
139 views

Power Button shutdown permission override

I realise there are several questions about Power Button options, but this is a little different. On my system, shared with my family, I have disabled shutdown from the device menu, users may only ...
2
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0answers
37 views

hp xw4200 fan speed

I just installed Ubuntu 14.04 on my old HP xw4200 workstation (p4 3.4 GHz, 3 GB of RAM, Ati FireGL 5200). The install worked without any issue and the system seems responsive. The problem is that ...
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1answer
62 views

Blinking moon of death since SSD upgrade on standby [closed]

I own a Lenovo SL510 (4G RAM) and I just upgraded it with a Samsung 840 Evo 120G. Previously I was using Ubuntu. Later on I switched to Linux Mint Nadia. At the very beginning (Ubuntu 10.10 I guess) ...
3
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1answer
250 views

Lubuntu 14.04: Cannot start Power Manager

I recently installed the Lubuntu Desktop and I can't start the Power Manager. It returns the question: Xfce4 Power Manager is not running, do you want to launch it now? but when I click Run, it ...
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0answers
57 views

Why the suspend is not even close to consuming 0 power? [closed]

Out of curiosity, I've measured power consumption of my computer on various states/loads. And guess what, suspend is not that energy saving as you may guess! It's far from claimed 0 or nearly 0 power ...
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0answers
66 views

Suspend fails to go to sleep

I have an Asus Zenbook Prime model ux-32A with kubuntu 14.04 and the suspend command does not actually suspends. when hit (either stop button or pm-suspend command) nothing happens. Below is the ...
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1answer
81 views

brightness not dimming on battery [duplicate]

On my Lenovo Yoga Pad 2 with Ubuntu 14.04 there is no option to dim the screen when in battery mode. There is one option "Dim screen to save power" but it doesn't seem to have any effect: How can ...
0
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0answers
58 views

Card reader draining power on MacBook running 14.04

I'm using 14.04 on a MacBook Air 5,2 (mid 2012, 13"). I just recently noticed powertop listing the built-in card reader to drain massive amounts of power: Power est. Usage Device name 6.68 W ...
0
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1answer
121 views

Plugged in, battery not charging, not running down

This morning, after being plugged in all night, my Asus N550J, Xubuntu Saucy, showed 28% battery. When it is plugged in, it shows the Charging icon, yet the percent charge never goes up. When it is ...
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2answers
39 views

Power settings location?

I have Xubuntu 14.04 and I am running it on an EeePC. Where in the world are my power settings? I've looked everywhere. I found this in my files, but I don't know how to open/use/install it. ...
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0answers
38 views

Battery status not refreshing

It was working fine, but after upgrading Unity to last version, it is not refreshing anymore. The percentage and charging status remains on what it was on system startup. acpi command in terminal, and ...
1
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0answers
61 views

What disadvantages come with using TLP?

I use Ubuntu on desktops and laptops and am making a custom script to set things up for my school. I just discovered TLP to improve power comsumption for the laptops and want to include it in my ...
2
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1answer
287 views

Docky: crash when plug/unplug power cable

Docky keeps on crashing every time I plug in or unplug the AC cable. I tried solving the problem following the instructions on this website. It worked fine for the suspend crash but when I try the ...
-1
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2answers
248 views

Cannot shut down Ubuntu 14.04 [duplicate]

this is my first time using Ubuntu 14.04 version. I'm not sure what I've done, but I can't shut down my laptop. But if I log in as the guest, then it will shut down if I press the button and I'm not ...
0
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0answers
28 views

Hotkey Fail After Suspend

Problem The hotkeys are Lenovo Thinkpad E440's Functions hotkeys (Fn+Any F). It works normally when PC turned on. It goes to a problem when I do sudo pm-suspend command. After suspended and resumed, ...
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0answers
51 views

Is There a Way to Force Lid State to Open

My Lenovo X1 Carbon Laptop with Ubuntu 14.04 has a problem where the screen and keyboard stopped working. It does work if I use an external monitor and keyboard. I think the reason for this is that ...
-1
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1answer
268 views

overheating when using ubuntu14.04

I installed ubuntu 14.04 in my asus intel i5 laptop. The laptop is heating up to a high temperature quickly which I never seen when using the windows. Can anybody give a solution?
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0answers
61 views

How can I change power settings automatically while running VLC in Xubuntu 14.04 64 bit

I am using Xubuntu 14.04 64 bit. I usually play video using VLC media player. The problem I am having is, after 10 or 15 minutes computer turn off its display, even the video is running in the ...
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0answers
40 views

During halt system hibernates on lid closed

I use xubuntu 14.04 64bit on Lenovo g510. I disabled hibernation on lid closed in xfce power manager. On lid closed: do nothing. It works. I can close and open the lid and system is not ...
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0answers
56 views

Diagnose complete system hang 12.04 dell xps 13

I occasionally have a complete system hang on my Dell XPS 13 Developer Edition laptop (the one that comes with Ubuntu pre-installed). There's complete system unresponsiveness, CPU seems to go to 100% ...
0
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0answers
56 views

Turn off screen when inactive ONLY on battery power

In the "Brightness and Lock" settings there is a nice feature to automatically turn off the screen after a period of inactivity, but I only want to do this on battery power. When plugged in, I always ...
1
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1answer
320 views

How to improve battery life on Samsung 13.3” Series 7 Ultra (NP730U3E-S01AU)?

Recently I've bought a Series 7 Ultra Samsung ultrabook and decided to change the OS from originally installed Windows 8 to Ubuntu 14.04LTS. However, it's difficult not to notice great decrease in ...
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0answers
112 views

Toshiba resume automatically after suspending in Ubuntu 14.04

I have a Toshiba L845 and i when i suspend ubuntu it wake up 2 seconds later. Here you are some info. cat /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-generic.efi.signed ...
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0answers
82 views

Laptop battery always discharging

I have fully updated Ubuntu 14.04 on my Asus X550DP laptop. My problem is that the battery always discharging. When I plug the AC adapter in, it charges battery up to around 96% and stops charging ...
0
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0answers
30 views

problems with my laptop when I turn machine

I've recently connect my laptop on another place in my house. When my laptop is booting, I saw this message: i915_bdw:exports duplicate symbol i915_release_power_well (owned by i915) hda_intel Error ...
1
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2answers
158 views

Asus UX31 ultrabook suddenly shuts down when below 50% battery

I've heard over the years that this computer had issues with the BIOS settings but that by 13.10 it had been cleared. It never used to happen on 13.10 but now that I'm on 14.04 it started showing ...
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2answers
364 views

Battery Power when running Ubuntu 14.04 LTS in dual boot

This is only a general question in order for me to get a better idea of my dual boot (windows 8 & Ubuntu) systems. I noticed that every time I run Ubuntu (which is becoming more often) the ...
1
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2answers
635 views

overheating and battery drain MacBook pro

I have just installed ubuntu Gnome 14.04 in a Macbook Pro 13" mid 2012, and I have some problems with my laptop. I have already installed TLP and macfanctld, but my MacBook still have the problem, ...
6
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0answers
208 views

What actions does Ubuntu trigger when battery is low?

When the battery is low, the screen gets dimmed after a few seconds already. This appears to be some special power-saving mode, and might be related to the time in ...
0
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1answer
150 views

Power off bluetooth: the LED indicator is still ON, is the radio module turned off?

I would like to have a Bluetooth adapter powered off at the startup, but at the same time to be able to turn it on when I need it. I have found this advice: Add rfkill block bluetooth into ...