Questions related to power management, particularly power saving measures.

learn more… | top users | synonyms (1)

0
votes
1answer
89 views

SSD Spindown Settings

I have dual SSDs in my new laptop, but the second SSD isn't used as often. Does "spin-down" have any affect on SSDs for preserving battery life? Is there a delay in SSDs in the event that the device ...
0
votes
0answers
79 views

Ubuntu having problems reconnecting on wireless network after suspend

I have searched for an answer but haven't found a simple solution or one that shares my setup. This problem should be pretty clear cut so maybe someone can help. Here's my set up. Have an HP ...
0
votes
0answers
19 views

My battery status isn't showing

I have Ubuntu 13.04, 32-bit, on a 64 bit laptop, and I noticed that the battery status isn't showing at the top of the screen, and I really need to know my battery status. How can this be solved?
1
vote
0answers
51 views

Laptop with Battery is faster than Power Connection at Ubuntu 13.04

Recently, I found a very strange phenomenon on my laptop. When the laptop is plug-in the power, then the CPUs work slowly, but when it is unplugged, i.e. it works with battery, then the CPUs work with ...
0
votes
0answers
19 views

Laptop wakes thinking it's charging when I've unplugged it during sleep

If my laptop is plugged in as I press suspend, then I unplug it after she's sleeping, when I wake her up, she still thinks she's charging, even though the battery is discharging. To fix this I either ...
1
vote
2answers
62 views

Battery Management in Ubuntu

How can I change the Battery Management settings in my Laptop? I used to have a Windows installed and in that, the battery management program (for the sake of battery health) had the charging limited ...
1
vote
0answers
54 views

Ubuntu+Gnome3 screen not dimming

I have an Ubuntu installation with Unity and Gnome3. When I log in using Unity, if the system is inactive for X minutes, the screen will dim. When using Gnome3 the screen never dims. Under ...
0
votes
1answer
25 views

Black screen waking from suspend

I had this same problem 6-7 months ago when I first installed Ubuntu. This problem also happens if I suspend from the shutdown menu. I have searched and tried numerous "fixes" but none of them ...
1
vote
1answer
53 views

How to track temperature changes using sensors?

I have Ubuntu 13.10 with sensors installed. Everything works fine, but I'm wondering if I can somehow keep track of temperature changes. Nothing fancy - Max and Min would do. It would be even better ...
9
votes
1answer
181 views

How to control LightDM power saving preferences?

I want lightdm to enter power save after a specific period of time. If I'm logged in then my screen will time out as per the user settings, however when no one is logged in the screen will stay on ...
1
vote
0answers
286 views

Very long shutdown delay on 13.10

Whenever I shutdown or reboot, there is a very long delay (several minutes) before the system will shutdown. I was getting a nm-dispatch signal 15 so I thought the problem might be with network ...
2
votes
2answers
150 views

Laptop Heating Lenovo Z570

I have just started using Ubuntu. Loving the way it works but I am having issue with heating. It is being heating more than it did when I had Windows 7 installed. Not sure if its problem of drivers ...
0
votes
2answers
435 views

Disabling touchscreen to extend battery life?

I've read various posts about extending battery life of laptops and notebooks. And I've done various of things to extend it. But I'm wondering does touchscreen take power and how much? Would it be ...
0
votes
1answer
162 views

Iris Pro 5200 - performance when running on battery

I have a laptop from System 76 (Galago UltraPro) that runs the Iris Pro 5200 graphics . When I am running the system while plugged in the performance is great. I can play most games without ...
0
votes
0answers
108 views

Dell Inspiron 7000 15inch Battery icon not visible until cable plugged in

So after fighting to get Ubuntu 13.10 installed along side Windows 8 in (u)efi mode, I am left with one strange issue. If I boot the laptop while not plugged into the wall no battery level applet is ...
2
votes
0answers
54 views

Simulate AC Power Plug/Unplug

can someone tell me how can I simulate AC power plug/unplug in Ubuntu 13.10? I would like to create a script, that do something when AC power is plugged/unplugged, but is really annoying to ...
1
vote
1answer
172 views

Netbook : extreme power-saving [closed]

I am the happy owner of an Asus EeePC 1005PX with very low-end hardware and a pretty big battery. I am looking for the most power-saving distribution of Linux, and/or kernel attached, because I can't ...
7
votes
2answers
467 views

How can I enable automatic resume on lid open?

My problem is the opposite of what is described in How to prevent resume from sleep/suspend on lid open?. If I close my laptop's lid, it automatically suspends, but when I open it up again, nothing ...
0
votes
0answers
83 views

Turn off monitor only after locking screen

I see there is no setting to turn the monitor off after the screen is locked unlike the one for screen locking which can be set to act after the monitor has been turned off. I do not want the system ...
0
votes
1answer
95 views

Numerous hard restarts cause gradual damage to system?

I'm setting my mining rig on Ubuntu x13.10 AMD64 up to lose power about 5 times a day Those of us all can remember a time long ago when you'd get your hand slapped if you shut down a computer by the ...
0
votes
0answers
48 views

No Internet, Brightness Controls, Battery Stats Toshiba Satellite on Linux 13.10

I have a Toshiba Satellite T135 and I installed Ubuntu 3.10 on to it. It installed just fine and everything is great, except that it seems most of the hardware built into the laptop doesn't work ...
2
votes
2answers
180 views

Power button on menu bar goes red regularly

I've upgraded to 13.10 In previous versions, the power button in the menu bar would go red after an upgrade that needed a restart to complete. Now the power button goes red after running for a ...
2
votes
1answer
90 views

What log files should be examined to troubleshoot shutdown issues in relation to USB devices?

I am currently having the following issue: Close lid of laptop - laptop suspends Open lid of laptop - laptop resumes Select Shutdown from menu - computer reboots Suspend computer from menu - ...
3
votes
2answers
194 views

Anyway to make hotkey to turn screen off?

I was just wondering how can one make a script (or make some changes) by which I can turn screen off in Ubuntu(12.04) whenever I want, the way screen can be turned off in Cellphones. And also I would ...
0
votes
0answers
74 views

Fan settings - battery vs. plugged in

I'm using Ubuntu 13.10 on a Lenovo Y510p laptop with Intel Core i7-4700MQ and an Nvidia GeForce GT755M graphics card which I'm not really using thanks to bumblebee (the only graphics driver loaded is ...
1
vote
1answer
59 views

How to See Hibernate in the Power Setting Correctly?

I enabled hibernate and it works. Also I can see hibernate option in the system menu and in the power setting as an option of "When power is critically low". However I cannot see hibernate in the ...
0
votes
0answers
179 views

Many devices using 100% power in powertop

In Ubuntu 13.10 on my Mac Mini 4,1 the Devices tab in powertop reports a bunch of PCI devices using 100% power: Usage Device name 0.3% CPU use 100.0% ...
0
votes
1answer
48 views

Problem with battery power supply

When I was using Xubuntu 12.04 laptop could live 2-3 hours. Now, after installing 13.04 battery life becomes shorter and shorter. xfce4-power-manager shows that battery is fully loaded, but after ...
0
votes
0answers
23 views

Upgrade from 12.04 to 12.1 boots to power saver mode and everything is dark

I upgraded from 12.04 to 12.10 with no issues, however, when the system was rebooted, it immediately came up in power saver mode, the screen is black and I'm unable to do anything, especially get it ...
1
vote
0answers
86 views

Login screen do not enter power saving mode on 13.10

Since I upgraded to 13.10 my login screen does not enter power save mode: the screen is always on. Power saving works normally inside a session. Where can I set power saving parameters for the login ...
0
votes
1answer
74 views

High power consumption due to 740M drivers? Soutions?

I've installed Ubuntu 13.10 in my laptop, an ASUS S56CB, also called ASUS K56CB in other countries. My first problem is the power consumption. In Windows 8 I get 4h30min viewing video with all ...
2
votes
2answers
1k views

Laptop does not suspend when lid is closed

I'm a new Ubuntu 13.10 user. Closing the lid of my laptop does not result in the computer entering suspend mode, meaning each time I close my lid without manually suspending the computer the battery ...
1
vote
1answer
77 views

How to manage USB powering for sleep mode?

How to disable USB powering for sleep mode while on AC? Settings for each controller or each device would be nice, but I'm glad to see even a global setting. If on AC, after my Ubuntu turns asleep it ...
0
votes
0answers
99 views

Is there an Advanced-Power-Manager with bandwidth monitoring for Ubuntu? (like on Synology?)

Like this one: A powerful power management application subsuming Synology Diskstation's integrated one and enabling the administrator to perform automatic on-demand power up and shut down of the ...
0
votes
1answer
22 views

Blanking screen @ 30 Second intervals for no apparent reason

My screen keeps blanking at 30 seconds if nothing is touched or moved. It seems to have started after a recent update. I have tried changing screen-saver settings, xset values, and installing ...
0
votes
1answer
122 views

How can I find out what the settings in /sys/bus/usb/devices/<id>/power mean?

I am trying to hammer out an issue with one of my USB hard drives constantly falling asleep and waking back up. I made my way into /sys/bus/usb/devices/3-4/power .. inside are a number of settings: ...
0
votes
0answers
43 views

dumb power setting ensure dim screen all the time

It's quite dim, but when I unplug, it gets brighter. Funnily enough, when the battery gets critical it goes dim again, and if I plug it in in a dim state it finally gets bright with the power plug ...
1
vote
0answers
103 views

Battery indicator stuck at 98% percentage

Ubuntu 13.10 64-bit, used to work fine but lately battery applet with percentage says 98% at boot but doesn't drain (though obviously battery is draining). How can I reboot the applet/make it work ...
0
votes
0answers
165 views

Alternate for Hibernation in Ubuntu 13.1

I have newly installed Ubuntu 13.1 on my Sony Viao laptop and would very much like to have a sleep/hibernate functionality on my laptop (when I close the lid of my laptop). The following link told me ...
1
vote
0answers
89 views

Ubuntu on VMWare (OS X) doesn't suspend when inactive

I'm running 13.10 as a virtual machine under VMWare Fusion 6.0.2 on OS X 10.8.5, and also have a Windows 7 VM. My computer is a bit flaky, unfortunately, and occasionally it freezes to the point that ...
1
vote
0answers
19 views

Unjustified hibernation after suspend

Lately I have an issue with my power configurations. After my laptop returns from Suspend mode it goes straight to hibernation. Here is a pic after I repower the computer (note the power level): ...
0
votes
1answer
231 views

Ubuntu 13.10 fails to suspend on closing laptop lid

I'm running Ubuntu 13.10 on a Lenovo ThinkPad Edge E330. Before upgrading to 13.04, when I closed my laptop lid, the laptop would suspend. However, it doesn't do so now. The laptop heats up ...
0
votes
0answers
61 views

Powersafe, no fan sound, generally silent and light ubuntu configuration

I usually travel with my notebook and my journey is quite long. I need to slow my pc as much as its possible to safe power for more time. I need to use text editor even nano is fine and I want to play ...
0
votes
1answer
74 views

Samsung series 3 runnint ubuntu 12.04, battery indicator does not recognize when I unplug my charger

I have a Samsung series 3 (NP305E5A-S01CA) running 12.04, everything has been running great except for the battery and power management programs. Even when my AC charger is unplugged and it is running ...
0
votes
0answers
152 views

How to programmatically apply Powertop's power saving suggestions on battery mode?

I am using Ubuntu 13.10 on an Zenbook UX21E. In order to apply all suggestions programmatically, that Powertop gives to save power, I created a script in: /etc/pm/power.d/zenbook containing: # ...
0
votes
0answers
50 views

fan stays on with HP Pavilion Elite HPE-140f desktop pc using Ubantu 13.1

I have just installed Ubantu 13.10 on my HP Pavilion Elite HPE-140f Desktop PC. I use Windows 7, 64 bit. The issue I am having is a fan (not sure which one, think it's the graphic card fan) is noisy ...
0
votes
0answers
44 views

laptop acer 4520 wont shutdown restarts instead

Am running ubuntu 12.04 LTS, tried to reinstall the OS, fix the boot, and following the instructions in the forum but still cant shutdown. I got this when I was trying to fix the boot, any help is ...
0
votes
0answers
430 views

Keep External HDMI Monitor ON

I am running XBMC (Frodo) on an Asus U47A laptop (Intel Sandybridge graphics) with Ubuntu 12.04. The laptop is connected to an older Phillips 27" tube HDTV via HDMI. What I would like is for XBMC to ...
0
votes
2answers
132 views

Asus laptop power management

I have a couple of symptoms that make me think Ubuntu has some problems identifying all the components of my laptop (Asus N56VJ-S4051H). When starting the computer from the OFF status, the fan goes ...
1
vote
1answer
117 views

How do I fix the missing reboot/shutdown issue in 13.10?

I am one of the unfortunate who has the problem in 13.10 whereby my reboot/shutdown button is missing from the menu bar. After googling around I found the bug being submitted but the fixes (which ...