Questions related to power management, particularly power saving measures.

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2
votes
1answer
5k views

How can I improve the battery life under 12.04 on my Inspiron 14z? [duplicate]

How do I improve the battery life of my Inspiron 14z under Ubuntu 12.04? This laptop gets 4-5 hours of battery life using Windows (e.g. here). I've removed Windows, installed Ubuntu 12.04 and the ...
5
votes
1answer
1k views

What causes Dell XPS 13 ProjectSputnik to wake up randomly after suspend and how to fix it?

When I close the lid of my XPS13 the system goes to sleep regularly. Sometimes it stays asleep but some other times it wakes up consuming battery. I can't find the reason why this is happening. Here ...
0
votes
2answers
857 views

Any open window and program is gone when I close my laptop lid (Suspend). What should I do?

I have just switched to Ubuntu 13.04 from Windows 8 and I'm very new to this OS. When I put the computer to sleep (suspend) by closing my laptop lid, it seems that all it does is shutting the computer ...
1
vote
1answer
917 views

Touchpad doesn't respond when power is pluggged

Upon upgrading Ubuntu 11.04 through 12.04 on a Dell System, the touchpad doesn't respond until the power plug is unplugged. Any idea why? To better clarify the behaviour of the touchpad: The touch pad ...
2
votes
1answer
515 views

Battery reduced by 50%> How to make my battery last longer than windows 7 for HP pavilion g7? [duplicate]

I have a HP Pavilion g7-1204sa 17.3 inch Laptop PC AMD Quad-Core A6-3400M Processor, RAM 6GB. I am attempting to make my laptop to last longer on Lubuntu or Ubuntu OS than windows 7. It currently ...
3
votes
1answer
10k views

Does TLP automatically start when my system boots?

Does TLP automatically start when my system boots? Everytime i boot into Ubuntu i open a terminal and type sudo tlp startonly then i can find the difference in the system temperature. If TLP doesnt ...
2
votes
1answer
576 views

How to optimize power consumption for Ivy Bridge? [duplicate]

I'm new in Ubuntu 13.04 and wondering what I should do to get the lowest power consumption settings for an Ivy Bridge CPU. Are there any changes to make in the terminal or something?
3
votes
0answers
408 views

System won't shutdown unless I stop networking init script [closed]

I speculate it's networking related since I could only shut down my system if I do /etc/init.d/networking stop first. If I tried to put the system to sleep, it disconnect the network then reconnect it ...
1
vote
1answer
4k views

Alternative to Jupiter Applet

Wondering if anyone knows of any alternative to the Jupiter applet that stopped being actively developed? I found this, but it's all I could find: ...
13
votes
2answers
7k views

Maximum CPU frequency stuck at low value

I have observed a problem with Ubuntu 13.04. The problem was not there on 11.10 I used earlier. The maximum CPU frequency is stuck at 2GHzon my Intel(R) Core(TM) i7-2620M CPU @ 2.70GHz (Dell Lattitude ...
0
votes
1answer
1k views

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 ...
1
vote
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 ...
1
vote
2answers
5k 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 ...
0
votes
1answer
766 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
votes
2answers
122 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 ...
0
votes
2answers
3k 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
492 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, ...
5
votes
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 ...
0
votes
2answers
142 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
869 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
votes
1answer
696 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
votes
1answer
598 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
vote
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
votes
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 ...
12
votes
10answers
46k 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 ...
4
votes
4answers
786 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 ...
0
votes
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
votes
1answer
756 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
votes
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 ...
137
votes
4answers
121k 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
votes
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
98 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
votes
1answer
758 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 ...
1
vote
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
votes
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
votes
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
281 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
vote
1answer
182 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
160 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
votes
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 ...
0
votes
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
votes
1answer
460 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
876 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
votes
1answer
89 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 ...
1
vote
1answer
548 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
votes
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 ...
0
votes
2answers
561 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
votes
1answer
238 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
votes
1answer
246 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 ...