Questions related to power management, particularly power saving measures.

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0
votes
1answer
88 views

How-to stop computer locking when lid closes?

Here are my power settings: How do I stop the computer locking when I close the lid?
0
votes
1answer
25 views

Brightness function will not work on a Dell 5521

I installed ubuntu 14.04LTS, as my previous version, this version still does not support brightness control function. Is there any solution to this problem. Brightness bar decreases as well as ...
0
votes
0answers
21 views

Xubuntu 14.04 Power button instantly powers off laptop instead of showing shutdown menu

Laptop is Lenovo Thinkpad X120e. lshw -short output /proc/cpuinfo The setup is pretty much standard. Not customized in any way, since I just installed it. No packages related to drivers installed, ...
0
votes
0answers
16 views

Is that bad statistics for my Laptop battery?

Battery capacity is 76.4 %. Is that bad? Does it mean my battery is dying? Actually it's decreasing everyday by .1.
2
votes
3answers
411 views

How to disable screen and powersaving during Video Playback

So I have noticed, even going back to Ubuntu 11.xx releases the screen for some ungodly reason dims itself while a video is playing. Iv'e even observed the thing go into sleep mode with the audio ...
0
votes
0answers
71 views

How do I get a wireless USB keyboard to to wake Ubuntu 13.10 from suspend?

My PC with Ubuntu 13.10 is set to suspend after 30 minutes of inactivity. Up until it suspends I can resume working at any time using my Logitech K400r wireless USB keyboard. The OS defect/problem ...
0
votes
0answers
47 views

Keyboard doesn't work after waking Ubuntu from suspend, wakes automatically after opening lid

I have Ubuntu 13.10 installed on Toshiba P55-A5200. The keyboard doesn't work after waking it up from suspend, so I have to restart it. Also, whenever I open the lid it wakes up without me pressing ...
0
votes
0answers
12 views

Laptop intermittently detecting power supply

My laptop is an Acer Aspire 6930, very old, running Ubuntu 12.04 or 12.10. It ran fine (Albeit only for five minutes) on battery, but when plugged in it seemed to barely detect that it was receiving ...
0
votes
0answers
92 views

Laptop running 14.04 LTS with Lock screen issue [on hold]

I've been trying out Ubuntu over the last month or so(have used other distro's in the past but took a long hiatus), last night after installing 14.04 LTS I've run into a bug where if my laptop goes ...
-1
votes
0answers
35 views

Ubuntu can't wake up on HP Pavilion 23 AIO since 14.04 (x64). Screen is freezed at login-screen [on hold]

Model: HP Pavilion 23-b110eg http://h10025.www1.hp.com/ewfrf/wc/product?cc=de&lc=de&dlc=de&product=5349926 Ubuntu <14.04 it was working great. Anyone know a fix?
5
votes
1answer
465 views

Is there a bug report tracking the power regression in the 2.6.38 kernel?

I'm looking for an official bugtracker entry (either ubuntu, or kernel) which tracks the story of power usage regression described in: ...
0
votes
0answers
9 views

How to set discharging preference of batteries in Lenovo Thinkpad R400 in Ubuntu?

I have Lenovo Thinkpad R400. I have standard battery and second battery in Ultrabay slot. I want to set preference so standard battery discharges first and then starts discharging the second ultrabay ...
27
votes
3answers
15k views

Hibernation is still missing from menu in 13.10 after enabling via polkit. How to enable?

I know that since 12.04, we need to add a policykit rule to enable hibernation (see question How to enable hibernation? and the Official Documentation). I can successfully bring my laptop into ...
-1
votes
0answers
15 views

Power-off After Resume When One of Two Batteries is Empty

I have two batteries in my ThinkPad laptop. If I suspend and then resume when one of the batteries is dead / empty then my laptop automatically shuts down thinking that it has no power left. If I ...
0
votes
1answer
71 views
+50

Why does my computer (almost) randomly power off? (GPU Kernel Panics?)

I've always had a problem running any sort of Linux distro on my machine. I'm a gamer and tend to spend most of my time in Windows and I have never had any issues when it comes to stability of my PC, ...
2
votes
0answers
10 views

Battery Icon does not work properly for dual batteries

I have two batteries for my laptop, one is the built-in battery and the other comes from keyboard (X1 Helix if you want to know how that works). The way it works is: laptop draws power from ...
3
votes
2answers
313 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 ...
6
votes
2answers
4k views

How to keep battery charge at 80% to increase its lifespan

Lithium-based Batteries are not supposed to constantly sit a maximum charge. This damages them and reduces their lifespan. This is why some people take the battery out when using the laptop plugged ...
0
votes
0answers
8 views

Ubuntu 13.10: Unusable when gaming with power not plugged in

I'm still pretty new to Ubuntu, but I have been having issues gaming when not plugged into an outlet. When I am plugged in my laptop runs flawlessly, however, when not plugged every thing runs fine ...
0
votes
1answer
28 views

Docky is closing when I plug/unplug the AC cable

Every time I plug/unplug the power cable docky is closing. This thing is happening since I have updated to 14.04, also, my battery life seems to be shorter. I am using a toshiba satellite c55-A-1PX.
0
votes
0answers
15 views

Laptop freezes on battery Dell Inspiron 3521 - Ubutnu 13.10 Gnome shell 3.10

I am running Ubuntu 13.10, Gnome shell - 3.10 on Dell Inspiron 3521 (bought hardly one year ago). Initially it worked fine. But now laptop is suddenly freezing. Nothing works then, no mouse, no ...
2
votes
3answers
317 views

battery discharges in a strange way on Lenovo Ideapad Z500

I've a Lenovo ideapad Z500 laptop with Windows only energy management software (my battery stop charging at 60% for long lasting life). Setting the threshold from Windows, it remains also with Ubuntu ...
0
votes
1answer
28 views

Battery consume

i know this is a frequently asked question. After trying win 8.1 and latest opensuse i feel ubuntu 13.10 to consume much power. Lenovo B590 notebook with 1TB 5200rpm hdd, 8 gigs of ram, i5 2.5GHz ...
81
votes
4answers
60k views

Is there a power saving application similar to Jupiter?

I have installed the 13.04 final release and so far I am loving it more 12.10. I'm trying to install the Jupiter power settings app but, I read it is no longer compatible with the new kernel. Is there ...
20
votes
6answers
37k views

How do I completely turn off screensaver and power-management?

I looking for a method to turn-off the screensaver and powermanager but from the command line. I'm aware this can be done via the GUI screen - but can this be done via the command line or via some ...
0
votes
0answers
50 views

error installing CMOS-RTC region Ubuntu 14.04 Beta [closed]

Whenever I wake my laptop from suspend, I get this code: error installing CMOS-RTC region install I'm not sure what that really means, but I'm just looking to make it not appear when I wake my ...
0
votes
1answer
24 views

Which icon does indicator-power use when fully charged?

This is a minor annoyance. Using Xubuntu 14.04. I installed the latest Faenza icon set. Unfortunately, it's missing the icon for when the battery is fully charged (adapter is connected). It looks ...
43
votes
6answers
53k views

How do I modify the power options?

When I press the power button a dialog opens, but I want to shutdown the system without receiving "Do you really really want to shutdown?". How can I choose a direct shutdown action on a pressed power ...
1
vote
1answer
937 views

How to add “shutdown” to the list of “when the lid is closed” in power settings? [duplicate]

Possible Duplicate: How do I modify the power options? I'd like to shutdown my laptop by closing the lid; but in Power Settings there's no option to do that. Is there any way to add ...
1
vote
0answers
33 views

How to calibrate the laptop battery on 12.04

Since a couple of days or so my laptop (asus n76vm) does a hard shut-down when the battery indicates 20% life left. It just cuts off the power, no shut-down screen or anything, making the hard drive ...
0
votes
1answer
27 views

Activate Tp-bat-balance

I have a t400 with an ultrabay battery. How do I get this to work? I want to balance the batteries discharge. I am coming from Windows so I don not know much about Linux. Any help is greatly ...
0
votes
1answer
2k views

battery icon / power indicator not shown in menu bar after upgrade to 12.04

Since the upgrade from 11.10 to 12.04 the battery icon / power indicator is not shown any more in the menu bar. I went to 'system settings'-->'power' and tried to set 'show battery status in menu ...
1
vote
1answer
99 views

How to permanently set CPU power management to the powersave governor?

I'm currently using this: cpupower frequency-set --governor powersave but it resets after each reboot.
0
votes
0answers
13 views

Ubuntu needs mouse hit to shutdown

My devices can't shutdown "automaticly". I have two machines with the same troubles: 1)On notebook: Notebook can't shutdown automaticly, when the battery capacity is extremely low. I applied ...
0
votes
2answers
85 views

Overheating, faulty laptop - How to prevent overheating?

I have a problem with my laptop. It overheats. In Windows 7 I use 80% Maximum Power State under power options to workaround the issue. Is there a similar solution available for Ubuntu? Can I set my ...
0
votes
0answers
15 views

Linked problem with a Windows program which I need to run one time

When I have used Windows 8 I have set to keep battery life with Lenovo Power Management. It have charged battery to 60% and keep it so. One time I have started my laptop without battery and this ...
0
votes
0answers
28 views

Slow performance on ubuntu 12.04 when laptop is UNplugged from charging

I've seen most of the threads on askubuntu about laptops being slow when plugged in but my laptop goes other way around. I'm still getting used to ubuntu settings and I'm not sure how to fix this but ...
0
votes
0answers
13 views

Ubuntu won't start unless laptop is plugged in. This has happened on 2 different laptops

So, I've been using Ubuntu on an off again for a few years, and I decided to permanently install it on a spare laptop that was gathering dust. It worked fine, but I did notice one little quirk, that ...
0
votes
0answers
15 views

Customise Suspend operation or create custom power option?

So basically I am using Ubuntu saucy salamander and I would like to be able to wake it from suspend over wireless. I can already do it when it has a wired connection but this doesnt really fit my ...
0
votes
1answer
25 views

Mouse turns off after a few seconds (Ubuntu 13.10, Windows 8.1)

I tried lsusb and I can see my mouse in the list. I tried for foo in /sys/bus/usb/devices/*/power/level; > do echo on > $foo; > done But I got this reply bash: ...
1
vote
1answer
27 views

Laptop does not stay suspended/hibernated

I have a Toshiba Satellite C855D-S5307. The computer came with Windows 8 and all the power functions seem to work fine with Windows. Whenever I install Ubuntu 13.10 (or any equivalent ie. Linux Mint, ...
0
votes
0answers
21 views

Help Plz. Screen Power Down & Lock Will Not Work.

So I have a problem here. I have it set so that my screen turns off after 30 mins of inactivity and so that the screen will lock after the screen is turned off. Only thing is is that it is not ...
2
votes
2answers
3k views

Ubuntu 12.04 LTS drains my Samsung Series 9 900X3C ultrabook's battery extremely fast. Is there anything I can do to fix that?

The title basically says it all. My Samsung Series 9 900X3C ultrabook's battery is in the deep red around barely three hours after disconnecting it from the power - and during most of that time the ...
0
votes
0answers
32 views

How to shutdown Ubuntu after (2 hours) of idle?

Running: Xubuntu 14.04 32bit. I have read several outdated, not working, working different that I want answers here and elsewhere. I had a script that resulted in shutting my Laptop down at boot time ...
11
votes
2answers
17k views

How do I monitor power consumption?

The powertop program shows the power usage, but only after about five minutes. Before that, it shows: no ACPI power usage estimate available That's one of the limitations of the powertop ...
5
votes
2answers
2k views

Laptop shuts down on lid close

When I close the lid of my Asus X77JQ, lucid shuts it down automatically after five minutes. I want to be able to sleep in the same room as my laptop, so I would like to be able to close the lid ...
2
votes
2answers
336 views

Thinkpad X1 Carbon won't suspend after upgrade to 13.10

I upgraded to 13.10 and have since had problems with suspend when I close the laptop lid. Prior to the upgrade, if you closed the lid it suspended the computer and all was well. After the upgrade ...
0
votes
2answers
569 views

Screen goes blank/corrupted/garbled when pressed brightness buttons on dell inspiron 14r in 13.04

When i press brightness key little faster the screen turns black(when graphic driver is not installed) or corrupted(when ati driver is used) and i have to forcefully restart again.This happens even ...
0
votes
0answers
22 views

How can i change startup applications in Lubuntu

I installed xscreensaver in lubuntu 13.10 and it wont start up auto. Neither will my power manager (using a laptop) I do not see "Startup Apps" anywhere
7
votes
2answers
2k views

13.10 hangs on waking from suspend except when suspended from console

I know waking from suspend is an issue, but this looks like a separate bug. When I suspend 13.10 on HP Pavillion dv6 (AMD 6770M/fglrx 13.10.10) from x, it suspends normally but freezes when waking. I ...