Questions related to power management, particularly power saving measures.

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0
votes
3answers
553 views

Precise Beta 2: Screen won't power down

I am running Precise beta 2 on a Dell Latitude E6410 with nVidia graphics. I have set up the power management to turn the screen off after 10 mins of inactivity. Instead of it turning off, it simply ...
0
votes
2answers
435 views

Laptop goes off (not shutdown), which log file should i check?

I have problem with my Lenovo x121e - goes off and i can't start it immediately again. I must wait 3-5 min and then works again. CPU Temperature was okay, about 65°, HDD Temp too - 37°. Badblocks ...
23
votes
3answers
9k views

How do I disable the sleep button on my keyboard?

I have a "power button" on my keyboard that enables standby or hibernate. I can't find the mapping of this key anywhere in "sytem settings>Keyboard", "system>power management", "compiz config> or ...
1
vote
1answer
535 views

Shutting down with power button without x11-session

When pressing the power-button inside a (gnome-)session, ubuntu asks me what to do and shuts down after 60 seconds anyway. No problem so far. But if i'm not logged in in a gnome-session (for example ...
0
votes
1answer
140 views

worth installing Jupiter on Acer Apire Revo?

Would it be worth installing Jupiter (power and device control) on my Acer Aspire Revo net-top ? Would it help my system any or make a difference ?
3
votes
2answers
672 views

Is there any need to install nvidia graphics drivers if I am running Ubuntu Server?

I have googled this question and arrived at no answer, so here I am. If I am going to be running Ubuntu Server, (as before I was running 10.04 Desktop) is there any need to install the Nvidia drivers ...
0
votes
1answer
548 views

How to keep SSH server running with laptop lid closed

I've changed the power management settings on my Ubuntu 10.10 server laptop to keep running with the lid closed but I loose any attempts to connect to it by ssh. Is there a way to change this so that ...
9
votes
2answers
2k views

Where does gnome-power-statistics get its data from?

Gnome-power-statistics is run when you click on the battery icon in the top panel of a laptop. It shows battery history such as charge and rate, as well as statistics such as discharge profile and ...
0
votes
3answers
366 views

Compile new kernel for ubuntu 11.10

My laptop is hp dv6 6080 with sandy bridge cpu. Linux has power issue and use more battery but i see in sites that new kernel doesn't has this problem. Is this true? if i compile this kernel for ...
0
votes
3answers
5k views

Automatic Reboot After Power Failure

I want a machine that loses power to automatically reboot when power is available. I've looked around and haven't found a solution that works for 11.04. Purportedly at one point you could do: echo ...
2
votes
1answer
667 views

How can I improve the power usage of my home Ubuntu server?

So, I have a home Ubuntu server, that I only use rarely, but sometimes use remotely. I would like to have it minimize the power usage, even if it requires a minute to access remotely, as I only use it ...
1
vote
1answer
259 views

Lost power while upgrading to 12.04, how do I fix the botched install?

I was upgrading from 11.10 to 12.04 just for kicks and lost power to the PC while it was about 3/4 done with the install section of the upgrade. I can login successfully and launch apps from the ...
2
votes
2answers
2k views

Cannot resume from hibernate (s2disk)

I seem to be able to hibernate OK using s2disk, but when I switch the laptop back on, it seems to hang half-way through the "resuming" menu. The splash screen looks healthy, it seems to be trying to ...
0
votes
0answers
120 views

Will Ubuntu 12.04 kernel address the ASPM issue [duplicate]

Possible Duplicate: Will final version of 12.04 use the power management changes found in kernel 3.3 I am asking as ...
3
votes
1answer
153 views

Unplug while lid closed does not result in standby [closed]

Since upgrading to 11.10 from 10.10 (fresh install) my laptop (Thinkpad X60) no longer goes into standby if the power is removed after the lid has been closed. Is there any way I can go about ...
0
votes
2answers
183 views

Why can't I login after a hard reset?

Ubuntu boots normal, and I can even login in terminal at any TTY (tt1 ~ tty6), but not in Graphical mode. This happened after a power-suspend. As I was trying to resume after the system suspended due ...
1
vote
0answers
461 views

How to enable Hibernate in 12.04? (Again) [duplicate]

Possible Duplicate: How to enable Hibernate in 12.04? I just installed the new 12.04 beta on my Lenovo Ideapad U450. According to this thread Whither hybrid suspend? hibernate and suspend ...
2
votes
0answers
259 views

How to enable Hibernate in 12.04? [duplicate]

Possible Duplicate: How to modify policykit to allow hibernation in upower? I just installed the new 12.04 beta on my Lenovo Ideapad U450. According to this thread Whither hybrid suspend? ...
1
vote
1answer
3k views

Access more options via Gnome Power Manager

im running Ubuntu 11.10 & am using the Gnome interface. I have installed the Gnome power manager and I am assuming this is it: This doesn't have that many options. I've seem some screen shots ...
0
votes
1answer
559 views

USB ports at 10Volt

There is a small "driver" from asus, AI Charger, that turns the PC's USB ports into 10V power supplier, which allows me to charge my iPad from my computer. Problem is, this only works on windows. Is ...
2
votes
6answers
5k views

Why is my laptop getting hot using Ubuntu

I switched from Win7 to Ubuntu and found that my laptop is getting too hot. (very hot). When I was using Win7, it was very nice, cool. Why this is happening and how do I fix it. details: Lenovo ...
0
votes
2answers
686 views

Excess power consumption in Dell laptop

I have bought a new Dell laptop, with 6 GB RAM, running 64 bit Ubuntu 11.10. I have both Windows on one partition and Ubuntu on another partition. When I use Windows, battery lasts for more than 2 hrs ...
5
votes
1answer
2k views

Lenovo ThinkPad L520 slows down when AC power adapter is plugged in

I have a new laptop Lenovo ThinkPad L520 (7859-5BG) Core i5-2520M(2.5GHz) with 4GB RAM. Having installed Ubuntu 11.10 32-bit, while browsing with Chrome on GNOME classic (no effects), I noticed 173% ...
1
vote
2answers
4k views

Turn-off WiFi / WLAN & Bluetooth completely (electrically off), how?

In windows, most laptops these days have a hot-key to turn off wireless modules completely (i.e. airline mode), including WLAN and Bluetooth. I am currently on Ubuntu 11.10, and wondering as to what ...
1
vote
1answer
290 views

When plugged in my laptop's CPU load gets higher

When I plug in my laptop (Asus EEE pc with brazos) it can't play a movie without lagging. When I unplug my laptop from the power socket, the lag goes away. I'm a bit baffled by this because I ...
2
votes
1answer
1k views

Why does powertop think I have two displays?

Ok, so in powertop (version 1.97), in both the "overview" and "device stats" sections, I see two devices, each called "display backlight". One shows the correct percentage of use, e.g. if I lower ...
10
votes
2answers
9k views

How do I check if last shutdown was clean?

How can tell that my last shutdown was properly done in Ubuntu 11.10 or if the machine was powered off before shutting down the OS?
3
votes
1answer
547 views

Is there a way to run the laptop only on AC power without removing the battery?

Is there a way possible to run a laptop only on AC power without having the need to remove the battery i.e. to disable the charging as it is possible in Windows 7.
2
votes
1answer
261 views

Autodim does not un-dim when I start using the computer again

On my MacBook 2,1 with Ubuntu 11.10, whenever I leave the computer alone for five minutes, it blacks out and wont respond to any keypresses or even the power button. UPDATE: It was the autodim ...
2
votes
1answer
619 views

Ubuntu Logs off on shutdown, Proper shutdown/restart too doesnt work

I don't know what i did or what happened? but my ubuntu logs off on clicking shutdown... running the shutdown or reboot command too doesn't shutdown.... how can i find the log? all i know is there ...
0
votes
2answers
2k views

Suspend USB power to a laptop cooling pad when going to suspend mode

When I suspend the laptop, the USB devices are left on. I don't mind this in general, however I'd like to be able to turn off the cooling pad under it. I tried the things outlined in the following: ...
3
votes
2answers
499 views

use setpci to restart ubuntu server after power failure on macbook

I installed ubuntu server 11.10 on my macbook 1,1. In order to reboot after power failure I have to set a specific "AFTERG3" bit using setpci. The solution for a macMini can be found here: ...
8
votes
1answer
5k views

How can I set my system to suspend when inactive to a longer amount of time

I run Mythtv on some Ubuntu 11.10 based machines. In the power settings, I can choose from a list of time periods from 5 minutes up to 1 hour for the the machine to suspend when inactive. I would ...
4
votes
5answers
8k views

Does Jupiter really improve battery power?

I installed Jupiter on Ubuntu 11.10 and set the preference mode to "Power Saver" but haven't seen any noticeable difference. Does it really do what it claims?
4
votes
3answers
1k views

Is there a power saving way to download torrents?

I usually download my torrents at night, while I'm sleeping. But when doing so, Ubuntu loads the entire desktop interface, while I only need the torrent client. I would like to use an energy saving ...
0
votes
1answer
1k views

How to get rid of low battery warning message?

My application running on a laptop-like device is controlling battery status on its own but when laptop battery is critically low Gnome Power Management message box appears: As my GUI style is ...
13
votes
3answers
6k views

Will final version of 12.04 use the power management changes found in kernel 3.3

I have seen in some version of Ubuntu that instead of making a huge change to update to the latest kernel, they take some of the good stuff out of it, for the sake of stability and put it on a ...
2
votes
1answer
358 views

Battery being guzzled, and drained faster than Windows OS, by alot

11.10, has it been tested with Sandy Bridge processors? I'm asking this, mainly have no idea why my computer under Ubuntu lasts only 2 hours (screen closed) but when under Windows 7 Home, it lasts ...
6
votes
1answer
4k views

Intel HD audio codec power management

Is it possible to enable power management for intel-hda sound card audio codec ? Power management for the card itself works fine, but audio codec module (/sys/module/snd_hda_codec) doesn't seem to ...
1
vote
1answer
792 views

Xubuntu: Screen idle-dims after lock+new login although not idling [closed]

I set my screen to dim after 2 minutes idling on battery in XFCE power settings. If I lock and click new login, and log in as another user, the screen will dim after 2 minutes even though that second ...
3
votes
2answers
4k views

Power saving with free Radeon (ATI) driver

I'm using Ubuntu 11.10 without the proprietary driver for ATI video cards and I like very much the performance. My only need is activate power saving when I use the laptop with the battery. Thanks
1
vote
0answers
150 views

What can I do to diagnose my ThinkPad R60 locking up when connecting power adaptor? [closed]

I move my laptop between places in my flat quite a bit for this I've got multiple power adaptors connected to outlets in two rooms. Now every now and again (I can't see a pattern) when I move the ...
311
votes
8answers
254k views

How to enable hibernation?

In Ubuntu 12.04 and newer, hibernation has been disabled by default in policykit. How can I enable this back?
1
vote
1answer
320 views

Run anacron even when on battery (laptop)

There is a known behavior of anacron not to run when the laptop is running on batteries. Is there any way to stop this behavior and run anacron whatever the power state? ...
30
votes
5answers
21k views

Why does my computer get less battery life with Ubuntu compared to Windows?

Last year I purchased a Dell Inspiron 5315 laptop shipping with Windows 7 preinstalled. I installed Ubuntu 10.10 alongside it with dual-booting. On upgrading to Ubuntu 11.10, I was upset to find I now ...
3
votes
2answers
330 views

How do I repair the shut-down/Log-off button?

I use the computer with 2 users. With one user all works fine. With the second user account, the shut down and log-off buttons do not work anymore while screen locking standby and hibernation still ...
18
votes
1answer
7k views

How to change critically low battery value?

I would like my laptop to hibernate itself when the battery level is 10% to be sure it has enough power to complete the operation properly. Actually if I don't pay attention my laptop informs me it ...
1
vote
3answers
3k views

How to save energy?

I just want to get some advices howto save energy on my new laptop. I already installed a kernel patch. On the picture below you can see, that i got less minutes of time than percentage. Only ...
1
vote
0answers
385 views

Getting screen blanking working with Ubuntu 11.10 under Unity [closed]

I want screen blanking after 10 or 30 minutes, but at present the screen doesn't blank at all. This has been an issue since upgrading to 11.10. At present, even after a couple of hours, the screen ...
2
votes
1answer
629 views

How do I get Ubuntu to ignore power button presses?

I've got a small media server that sits under my TV, and it runs Ubuntu 11.04 desktop x64 with XBMC on top. I've got a problem in that unknowing users / visitors occasionally press the power button ...