Questions related to power management, particularly power saving measures.

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1
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1answer
146 views

when I close my laptop lid and reopen my machine suspends

I have this weird problem with my new Xubuntu 14.04 installation. When I close my laptop lid, the box will suspend alright. After I decide to reopen my box to continue what am doing the screen will ...
0
votes
1answer
3k views

Xubuntu 14.04, Power Manager, Screensaver

When my computer is inactive, I keep getting a black screen and the screen goes into locked mode asking for a password, even though in Power Manager I have "Never" set for actions and monitor and ...
3
votes
0answers
32 views

Ubuntu still shuts down after I plugged my charger in

On Kubuntu when my battery is dying and I plug my charger in, it says "All suspensions have been cancelled." On Ubuntu or more accurately, Unity-based distors, it still shuts down after plug in my ...
3
votes
2answers
4k views

loud fan on Ubuntu 14.04 [duplicate]

I have a Dell Latitude E5420 laptop which I upgraded from Ubuntu 13.10 to Ubuntu 14.04 a few days ago. I can't help noticing a new annoying behaviour of the fan: it repeatedly gets loud every 1-2 ...
1
vote
0answers
54 views

How do I get a warning before my laptop powers off?

In previous versions of Ubuntu, when my laptop battery hit somewhere around 20% power, the icon in the Gnome panel (I use Flashback) would turn red. Also, there would be intermittent warnings telling ...
0
votes
1answer
77 views

“Sometimes” fails to go into suspend mode

I have been using Ubuntu since 13.04. I am using Ubuntu 14.04 now. When I first installed Ubuntu 13.04, there was no problem about suspend mode. However, since some time ago, suspend mode has started ...
2
votes
0answers
104 views

Sleep mode problem [closed]

I've jumped the ship and I am sinking into dark waters of Linux.. :-) Hopefully to see bright future. I need some assistance or guidance as I am new to linux. I have installed Latest version of ...
1
vote
0answers
540 views

Xubuntu 14.04 resume form hibernation/suspend error [closed]

Every time the system comes out of hibernation/suspend, I get the following error: [107691.012100] dpm_run_callback(): pmp_bus_resume+0x0/0xa0 returns -19 [107691.012101] PM: Device 00:07 failed to ...
1
vote
0answers
107 views

Battery Threshhold

I recently installed Ubuntu 14.04, which is really nice but my battery is not charging past 59%. I recall tinkering with Lenovo battery management on Windows to reserve the life span but I wiped ...
0
votes
1answer
104 views

UPower reports Incorrect Capacity

I've just replaced my old Netbook battery with a new one of higher capacity. It was a cheap battery off of Amazon which clearly reads as a 5200mAh battery but Ubuntu reports the battery as being the ...
1
vote
0answers
57 views

Turn off battery control in Ubuntu 12.04

I own a Lenovo Ideapad Yoga 11S that suffered from battery failure when i poured coffee over the keyboard. I have checked the battery voltage manually and it is full. The computer also seem to be ...
0
votes
0answers
184 views

Thinkfan config for x240

I just installed ubuntu 14.04 on my ThinkPad x240 and was playing around with thinkfan(see http://thinkwiki.de/Thinkfan [German] and How to control fan speed?) a bit. However, I was not able to find a ...
2
votes
1answer
2k views

xfce4-power-manager suspend not available for lid close

Running a clean install of ubuntustudio 14.04 the suspend and resume works when using the power button or selecting it from the user menu but is not available in the xfce4-power-manager-settings. Only ...
3
votes
4answers
719 views

Different fan behaviour in my laptop after upgrade, what to do now?

After upgrading from lubuntu 13.10 to 14.04 the fan of my laptop seems to run much more often than in 13.10. When it runs, it doesn't run continously but starts and stops every second. fwts fan ...
0
votes
1answer
132 views

Laptop screen goes blank after 33 seconds of inactivity

I have a Lenovo Thinkpad T60 running 12.04.4 LTS, Precise Pangolin; the desktop is KDE. Starting today, the display goes blank after 33 seconds of inactivity. Clicking or even moving the mouse, or ...
-2
votes
1answer
398 views

install bettery drivers for ubuntu 14.04

I have recently installed ubuntu and it seems ve[]ry power consuming. after installing it it heats up too much. is there any battery drivers available here for ubuntu. my leaptop configuration is: ...
0
votes
0answers
92 views

Dell Inspiron n4110 Doesn't Start with recurring low battery beep

Took the Dell n4110 Inspiron to school today, I opened it up, and when the low battery noise beeped I realized I forgot to charge it and shut the lid immediately as it was loud and in the middle of ...
0
votes
0answers
36 views

How to restore default power plan to ubuntu 12.04 lts

I've been having battery plan issues. When my laptop is unplugged ubuntu becomes slow. When it's plugged everything is fine. I assumed something was wrong with my battery plan or something like ...
0
votes
0answers
144 views

CoolSense for HP Envy dv4-5266LA on Ubuntu 14.04

I recently installed Ubuntu 14.04 on my HP Envy dv4-5266LA laptop. I have a problem because my computer is too hot, and the battery drains very fast. Please help to solve this problem that may be ...
1
vote
1answer
257 views

Standby sometimes needs hard reset on Ubuntu 14.04

After setting up a fresh Ubuntu 14.04 on a Lenovo W540 I sometimes experience standby problems. About 50% of the time standby works fine. I close the lid or click standby on the menu and it goes to ...
1
vote
0answers
180 views

KDE does not notice laptop running on battery

After upgrading to Kubuntu 14.04, KDE does not notice that the laptop is running on battery! The battery icon continues to show the 'charging' symbol. But the battery level shown in the icon keeps ...
3
votes
1answer
213 views

Ubuntu wakes up automatically after suspending

I'm having this problem since Ubuntu 12.10/13.04 i think, now I have 14.04 and the problem stills. When I click the suspend button, the Ubuntu suspends normaly but after 1 or 2 seconds it turns on ...
1
vote
0answers
218 views

Light locker isn't saving my changed settings

I installed Xubuntu 14.04 on my Asus N10J Computer, and Light Locker and it isn't saving my settings changes to it. I have tried restarting my computer, logging out... it doesn't work. I want to ...
0
votes
0answers
443 views

Lenovo Z510 working extremely slow on battery

Ubuntu 12.04 on Lenovo Z510 i5. When AC power adapter is plugged in, everything is fine, the system is working fast. When i unplug the AC adapter, ubuntu is going to work extremely slow. I ...
1
vote
0answers
984 views

Ubuntu Server losing network connection

My issue is simple, yet really complex. I recently installed Ubuntu server on an old stripped down laptop. It's a SAHARA LE1D, 1.4 Intel Celeron m I think. It's an old one, but still good. The eth0 ...
0
votes
0answers
33 views

Dell D631 + secondary battery can't boot- 14.04 x64

I have a secondary battery in the CD/DVD bay on a Dell D631. With battery installed Ubuntu 14.04 64bit won't boot, stalls at "trying to unpack rootfs image as initramfs". Without secondary battery, it ...
9
votes
2answers
3k views

Fan is always on, CPU usage is rather low and can't find the fan or thermal_zone proc files

I have an Asus N76VB notebook with Ubuntu 14.04 and TLP for power managment. However, the fan is always on. It's not really loud, but it's annoying. My CPU usage is around 1-2%. It's clocked at 1.20 ...
1
vote
4answers
1k views

Poor battery life UX32VD Ubuntu 14.04 with optimus 4000/620m

I'm running Ubuntu 14.04 ux32vd laptop and am getting only 2 hours of battery life where as on my Windows partition I get 6. I'm using a zenbook ux32vd with Intel 4000/nvidia 620m. I have the ...
2
votes
0answers
475 views

Laptop power saving or management in Ubuntu 14.04

Is there any sort of installation that can be added to provide power options for when I am running on battery? I wouldn't want to always be on power savings, so I would hope I could switch between Eco ...
0
votes
0answers
80 views

Ubuntu never resumes from lid close, absolutely never

Whenever I close the lid to my computer, it goes into standby just like it did on windows 7, though when I open the lib on my Dell Vostro 1720, it shows a kde password dialog just like the one shown ...
0
votes
1answer
253 views

Nvidia GPU not upto satisfactory level after 14.04 upgrade

Before upgrading from saucy to trusty, I was happily using nvidia drivers for my GeForce GT 635M GPU. The heating and battery draining rates were under check. and the fps were high. After the ...
0
votes
1answer
125 views

Power consumption in Ubuntu 14.04

I am using 14.04 in Virtual Box. Each time i switch on the VM, the laptop powers off. The host being Windows 7. It is already over 7-8 times this has happened. Please let me know how to nullify this. ...
1
vote
1answer
661 views

The screen locks as soon as I close the lid of my laptop

Whenever I close the lid, there it is the computer is locked. And I don't find any option in the power manager provided by Ubuntu to turn that feature off. Is there a tweak available? There might be ...
0
votes
2answers
615 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
44 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.
0
votes
1answer
124 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
76 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 ...
2
votes
0answers
58 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 ...
0
votes
0answers
17 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
2answers
742 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.
3
votes
1answer
211 views

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

I am running Ubuntu 13.10, Gnome shell - 3.10 on Dell Inspiron 3521 (bought almost one year ago). Initially it worked fine, but now laptop is suddenly freezing. Nothing works then, no mouse, no ...
0
votes
1answer
79 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 ...
0
votes
2answers
213 views

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, ...
0
votes
1answer
131 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 ...
1
vote
0answers
557 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 ...
1
vote
1answer
58 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
0answers
21 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
327 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
18 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
26 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 ...