Questions related to power management, particularly power saving measures.

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Dell XPS 15z (L511z) - Ubuntu 13.04 - Short Battery Life… Any help, ideas, or mods?

I presently have a Dell XPS 15z (L511z) (+ 240GB SanDisk Extreme SSD Upgrade). I also have Ubuntu Gnome 13.04 installed. My BIOS is at the latest version. I have the following power-related packages ...
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5answers
3k views

How can I improve battery life on my laptop? [duplicate]

I have a Macbook Pro 6,2. It uses Nvidia Optimus technology and would not work with Bumblebee as the i915 driver would fail. I had to uninstall Bumblebee, install nvidia-current, and blacklist nouveau ...
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2answers
4k views

How do I get my laptop not to lock up every time I close the lid in Ubuntu 13.04

Every time I close my laptop lid, Ubuntu 13.04 will lock up. I have it set in the Power settings to do nothing for when I close the lid on both battery power and when plugged in, yet when I do close ...
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1answer
709 views

Auto Boot after Power Failure - Laptop

I'm using a laptop with lubunut on it for a project I'm working on in a remote location. I chose a laptop because of the batter already attached and the frequent power outages. Most power outages are ...
4
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2answers
119 views

Is it possible to put X to sleep, leaving the rest of the system awake?

Imagine a computer with two functions: A fileserver and local webserver, required 24/7. A graphical server for a media centre, only required when somebody is using it. I am considering building ...
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2answers
2k views

What linux distribution is less power hungry than ubuntu 12.04? [closed]

My notebook is a Compaq Pressario CQ71. The battery life is like 1:45 h. When Win Vista was installed on it, it was like 3 h. Now I like Linux more, but this distribution (ubuntu 12.04) is consumes ...
3
votes
1answer
468 views

Run configuration script at X session resume

On Ubuntu 13.04 I have to manually configure the touchpad since a bug prevents me using the standard configuration tool (changes don't save). However I created a script that sets up velocity, ...
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1answer
5k views

My fan is always on but not in MSWindows (HP elitebook 8460p)

Problem: My laptop(new) fan is ALWAYS on. Question: What can I do to solve this issue? Situation: HP Elitebook 8460p Ubuntu 12.04 LTS (clean install, no mod, nothing... really clean... no ...
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1answer
135 views

To control battery at a certain capacity (for ex.20%) then the laptop will be automatically standby or hibernate for long-lasting the battery

I would like to control for setting my battery at a certain capacity (for ex.20%) then the laptop will be automatically standby or hibernate for long-lasting the battery. Is there any solution, ...
2
votes
1answer
841 views

fan noise and high battery consumption with AMD hybrid graphics

as described here dell 7520 (inspiron 15R SE), fan on full speed on 12.04, 12.10, 13.04, i still have problems with my energy comsumption and fan noise under ubuntu 13.04. i could reduce it to a ...
0
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1answer
628 views

Strange behaviour when close the lid of my MBA

I have an MBA and I'm used to close the lid without any problem in OSX. I've installed ubuntu 13.04 in dual boot with rEFit. The problem is that sometimes something strange happens when I close the ...
0
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1answer
582 views

How do I turn down GPU heat / usage on a Sony Vaio Z21?

I have a Sony Vaio Z21 (VPC2) and am experiencing some GPU heat/usage issues since kernel 3.2 up till 3.9. I have installed laptop-mode-tools, configured powertop and added the following to grub: ...
1
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1answer
1k views

Ubuntu crashes when on battery power

I've got an HP 2510p (with a mic problem..) with Ubuntu 13.04. When I use it plugged in to the A.C. supply, so far so good. When I disconnect the A.C. supply, Ubuntu crashes. Same thing happens when I ...
6
votes
3answers
4k views

Missed power est. column in powertop?

I used powertop v.2.1 under Ubuntu 12.04 but it missed the power est. column. It's the same situation as described here‎ and that bug is supposed to be fixed already. I tried lm_sensors but it ...
3
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2answers
2k views

Ubuntu not is hibernating when lid is closed

I use Ubuntu 12.04 in my laptop. I'm trying to configure to hibernate when lid is closed. However, not is working. I did the following steps to solve the problem: I enable in ...
9
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10answers
40k views

How to stop screen going black after 10 min

My OS is Lubuntu 13.04. After 10 mins of inactivity the screen goes black. What I did to stop it without effect: uninstalled xscreensaver completely in power setting I set to never blank the screen ...
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4answers
755 views

Shut down acts as restart?

I've installed Ubuntu (almost all latest versions), when my Acer Aspire V5-471 is want to shutdown from Ubuntu, it acts as restart/reboot. Refer to edit 2 for releases tried and edit 1 for tried ...
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0answers
51 views

Low battery life on ubuntu 13.04 [duplicate]

Config: laptop MSI CR650 - 229XBY AMD E-450 Radeon HD 6320 (512mb) - Proprietary driver HDD: 500Gb OS: Windows 7 Home Premium SP1 (x64) and Ubuntu 13.04 Raring Ringtail (x64) Steps: 1.Clear Install ...
0
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1answer
752 views

How to get Jupiter in Ubuntu Gnome [duplicate]

So I switched from ubuntu to gnomebuntu today, and proceeded to try and install all the apps that I had found invaluable with ubuntu. I have run into a road block with jupiter, and was wondering if ...
0
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1answer
1k views

How to switch off devices and ports for power saving in Lubuntu? [duplicate]

In Windows Vista I can switch off via power management: PCI Express Modem port Optical DVD drive Via network connection I disable: Blutooth How can I do similar in Lubuntu? Under Power Manager I ...
132
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4answers
114k views

Is there a power saving application similar to Jupiter?

I'm trying to install the Jupiter power settings app but, I read it is no longer compatible with the new kernel. Is there a similar program or a way to manage the power settings on 13.04?
2
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1answer
1k views

Turning off battery management on desktop

Just installed Ubuntu 12.04 on a Dell Optiplex GX280 desktop computer. When I hook up my bluetooth mouse and keyboard it seems to recognize their batteries as the actual battery of the computer. As if ...
3
votes
2answers
96 views

How do I find out if an external drive is in active use (being read/written to)?

I have some external drives connected to a power outlet. The outlet is USB switchable, i.e. I can run a program on my PC that physically disconnects the external drives from the power grid. I only use ...
0
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1answer
679 views

SSH login wakes spun-down storage drives

I'm running 12.04 on a home server/HTPC, and have several storage drives which spin down using values set in /etc/hdparm.conf. Sometimes, logging in via ssh causes some or all of the drives to wake ...
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1answer
1k views

About powering USB device on Linux: Android camera app recognizes USB camera but Ubuntu doesn't

On my notebook, I have a USB camera, 32-bit Ubuntu 10.04 running on SD Card and Android Jelly Bean on flash memory. Ubuntu doesn't recognize the camera (even the USB port), cause it doesn't offer any ...
0
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1answer
1k views

Ubuntu 12.10 is draining my battery really fast [duplicate]

I'm new to Ubuntu and I'm not a developer to know how to write codes. I downloaded it couple of days ago but it is killing my battery, it almost lasts an hour and couple of minutes while it holds for ...
3
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1answer
1k views

Increase the disk spindown timeout

When my laptop (running Ubuntu 12.04) is on battery, the disk powers off after a few seconds of inactivity — about 20s. I use lightdm to log in, and have some Gnome components running (I have ...
3
votes
1answer
267 views

Can my settings be customized automatically when I boot on battery power?

Is it possible to tweak settings if and only if the computer starts on battery power? Why? I usually work without battery, but when I use a battery I want it to last as long as possible. For that ...
1
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1answer
181 views

UPS beeping on mouse scroll or other events

I have this hardware problem, my UPS battery beeps a lot when using Ubuntu (not so much on windows), so I am thinking that it may be a interrupt problem or a power surge of some sort. The strange ...
1
vote
1answer
156 views

Is there a user-friendly setup to reduce performance and fan thresholds?

My Dell Vostro 4450 with Ubuntu 12.04 started heating (>95°C) when its on heavy load and charging battery (sometimes it freezes in this conditions). When on heavy load but using battery, it stabilize ...
4
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4answers
2k views

Much lower battery life on Ubuntu and laptop heating up badly

I have the following config laptop: System model: HP Pavilion g6 Notebook PC Processor: AMD A8-4500 APU with Radeon HD Graphics (Quadcore 1.9Ghz) Memory: 6Gb RAM Graphics:AMD Radeon HD 7640G+7600M ...
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2answers
2k views

How can one disable Wi-Fi power management when using Jupiter?

Background and Problem My laptop (Lenovo ThinkPad X131e 3372-2VU, running Ubuntu 12.04 LTS) freezes when Ubuntu tries to manage the wireless interface's power. I had to manually disable wireless ...
2
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1answer
413 views

Getting powernap's IOMonitor to work with postgresql

I have a 12.04 box running postgresql 9.1.8-0ubuntu12.04, which serves a Java webapp (an Atlassian Confluence wiki). I'm trying to take advantage of powernap's IOMonitor feature. However, if I ...
3
votes
1answer
832 views

How to prevent CPU governor from changing automatically on laptop power?

I noticed when I plug-in or unplug my laptop's AC adapter, the CPU scaling governor changes to ondemand. Because my laptop gets fairly hot, and I do nothing intensive on it, I prefer powersave at all ...
2
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1answer
83 views

after disabling dpms, how to keep dpms disabled after resume from suspend?

Ubuntu 12.10 quantal: On login, I run "xset -dpms s 0 0 s off". This works great until I suspend and resume. For some reason, dpms is re-enabled after resume. Is there an easy way to completely ...
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1answer
524 views

Strange behavior with ssh on Ubuntu 12.04 server

Recently I installed Ubuntu server 12.04 on my computer at home with ssh support. I'm using WiFi instead of cable connection for this server. Everything works fine except the fact that for some ...
2
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0answers
1k views

Disable HDMI sound out, for decrease power consumption

I have Ubuntu 12.04 on my laptop I'm looking for a way to decrease power consumption. This is output of powertop command Power est. Usage Events/s Category Description 1.30 W ...
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2answers
532 views

Poor battery life with Intel i7

I have an Asus K55VD laptop (Intel i7-3610QM, Intel HD-4000), and have noticed poor battery life when using Ubuntu: ~3hrs. This runtime is with the screen at minimum brightness, the processor scaled ...
0
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1answer
212 views

What does it mean that my GPU is running 0 ops per second

I am currently running an Ubuntu 12.04 laptop built by System76. I fired up powertop, which I do frequently because my battery life on this machine is attrocious, and I noticed a line at the top ...
0
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1answer
242 views

Inspiron 7520 Power Management 12.10 after sleep mode

I use an inspiron 7520; i7 3rd generation, AMD Radeon HD 7730m w/ intel 4000hd I have noticed that my batttery life radically change when I awake my computer from sleep. When I just boot yp my ...
3
votes
1answer
218 views

Is the pm-suspend command equivalent to the GUI suspend option?

I noticed the pm-suspend command and was wondering whether this is the same as selecting the sleep option on the main menu. If not, how does it differ?
3
votes
1answer
258 views

Mouse and touchpad freeze without power supply

I have a fresh installed Ubuntu 12.04 LTS on my HP ProBook. My external mouse and touchpad freeze in battery mode, but I can reinitialize them with Ctrl+Alt+1 and back to 7. As long as I move the ...
2
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1answer
801 views

How to prevent battery charging unless dips below 95%? on an Asus U31SD-XH51

I have an Asus U31SD-XH51 laptop running latest Ubuntu 12.04 LTS and I want to know if there is a way to prevent the system from charging the battery unless its charged level dips below 95%? This is ...
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3answers
3k views

How can I increase battery life in Ubuntu?

I really like Ubuntu, and I want to work with it always instead of windows. But the problem I find is that the battery runs out very fast (< 2 hours) when I use Ubuntu. It would have been great if ...
0
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1answer
99 views

Xubuntu 12.10 disable Lower Power Beep

How do you disable the lower power beep within Xubuntu 12.10?
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2answers
3k views

Why does powertop still detect tunable settings on >12.04?

According to this Q&A laptop-mode-tools and powertop are not needed anymore with ubuntu 12.04 as the power savings are now included in the kernel. So I decided to remove laptop-mode-tools from ...
2
votes
1answer
3k views

Shutdown when laptop lid closed

I want my laptop to shutdown when I close the laptop lid. But in the power settings I can only choose between: Suspend Do nothing Hibernate (Disabled) Is there any way to configure it with more ...
1
vote
2answers
711 views

Loud fan and very hot pc

I know, that you don't like when someone ask same question as is answered but I try a lot of solutions and nothing helped... I installed Ubuntu 12.10, everything is good but fan is very noise and ...
0
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1answer
196 views

Inefficient power management

I've got a HP Envy M6 1178ea notebook which has a battery life of about 6 hours when running on Windows 8. I recently installed Ubuntu 12.10 (quantal) 64-bit and the indicator shows a battery life of ...
2
votes
1answer
401 views

Integrated webcam on a Dell V131 drains the battery when not used. How to turn it off?

After using the integrated webcam, it never fully turns off and keeps hogging the battery. From powertop: The battery reports a discharge rate of 22.6 W The estimated remaining time is 0 hours, 41 ...