Questions related to power management, particularly power saving measures.

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4
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0answers
102 views

Prevent gnome power manager from showing keyboard battery

My gnome toolbar shows a battery indicator which is always wrong. I recently figured out why; as when clicked it shows both my internal battery status and my keyboard status as two separate items: ...
1
vote
0answers
75 views

Ubuntu 14.04 Battery Icon has fixed value after booting till the next reboot [UPDATED]

I have a dual-booted Ubuntu 14.04 LTS with Win8.1 on a Dell inspiron 14 series 5000 machine. It tire me with alot of bugs starting with wireless instability and showing new ones with each update I ...
1
vote
0answers
11 views

Laptop wake up from suspend when lid is closed [duplicate]

I have installed on my laptop Ubuntu 15.04. Today I have closed the lid, the laptop got into suspend mode and I put my laptop in my bag. After 3 hours I got him out and it was hot as hell! The laptop ...
0
votes
0answers
64 views

Laptop battery draining too fast. No overheating

I'm using a Dell Inspiron 5520 laptop with a 3 month old battery. I've installed Ubuntu 14.04 LTS version recently and I'm completely new to the Linux world. I've noticed that the battery is draining ...
0
votes
0answers
66 views

Kubuntu 15.04 freezez on wakeup

I have Lenovo Ideapad Flex 10 laptop with Kubuntu 15.04 on board. When I close the laptop's lid, OS normally suspends, but when I open the lid, the system shows black screen with the mouse cursor on ...
0
votes
1answer
145 views

Battery Not charging fully on Sony Vaio

I recently purchased a new battery for my Sony Vaio VPCEH25EN running Ubuntu 15.04, and I noticed that it only charges to 40%. When I checked the power statistics I noticed the following - Percentage ...
1
vote
1answer
101 views

Ubuntu 14.04 - Suspend only locks screen

I am sorry if this question may have been asked and answered before, I completely understand that. But as of right now I cannot find a solution, so I am asking myself. So first off, I am completely ...
1
vote
1answer
30 views

Different behaviours when suspending

I always suspend my laptop in two different ways: Clicking "suspend" on the right top corner. Using the command line sudo pm-suspend. Depending on how I do it, the bahaviour is different. The ...
0
votes
1answer
120 views

Ubuntu 15.04 on laptop - “When plugged in” setting not enforced after battery is charged to 100%

I got Ubuntu 15.04 running on a Dell 3147. Under Power settings, I have When plugged in set to Don't suspend. It seems that after the battery has reached 100% it no longer honors this setting, instead ...
2
votes
1answer
261 views

How to turn off hard drive in Ubuntu?

I am running Kubuntu from External Hard Drive. My Internal Hard Drive has Windows on it. I don't want to use it while on Ubuntu and want to turn it off to produce less heat as well consume lower ...
0
votes
0answers
40 views

After suspend and restart computer constantly power cycles

So this likely could just be hardware issue, but let me explain what happened first. So I have a pre-built desktop that I've been running Ubuntu/Windows for about 3-4 years now. It typically runs ...
0
votes
0answers
54 views

Heating laptop and Low Battery (Probook 440 G1)

Currently I'm running Ubuntu 15.4 (x86_64) on my Probook (i7 4702 MQ, 8GB RAM, ATI 8750M).I previously had Windows 8 on this machine, which gave me a battery life of around 5-6 hours ...
0
votes
0answers
48 views

Ubuntu Gnome 15.04 when booting will shutdown and then power up by itself

I just installed Ubuntu Gnome 15.04 and when I want to power up the computer it will show the motherboard logo (ASUS), then it will show a silver/grey screen of the Ubuntu Gnome 15.04 without anything ...
1
vote
0answers
28 views

Strange battery behavior after updating from 14.04 to 15.04

I'm using HP machine with Intel Pentium N3520 and 4GB RAM. I recently updated to Ubuntu 15.04 and facing issues with battery, which is behaving like anything. It does not charges when operating system ...
4
votes
2answers
194 views

Does disabling touchscreen have any impact on battery life?

I hesitate about keeping my touchscreen disabled on my Ubuntu installation. I disabled it by adding Option "Ignore" "on" to the /usr/share/X11/xorg.conf.d/10-evdev.conf file : Section "InputClass" ...
1
vote
0answers
99 views

How to disable automatic shut-down on low power (Ubuntu 15.04)?

So apparently there's a nasty bug on my laptop (an Acer Aspire 3810T) that makes Ubuntu freak out when plugging/unplugging power. Frequently, it claims the battery is at 0% when switching power ...
0
votes
1answer
203 views

Powertop systemd service failed to load

After my installing of powertop and calibrating it, I create systemd service with following text: [Unit] Description=Powertop tunings [Service] Type=oneshot ExecStart=/usr/bin/powertop --auto-tune ...
0
votes
0answers
138 views

intel pstate, turbo always on cpu temp is 60 and without only ~43

I have a problem with pState on my Thinkpad L450 with Intel 5200U (broadwell) + SSD. When I use pstate, the turbo mode is nearly always turned ON and my CPU fan is also always ON because cpu temp is ...
0
votes
1answer
172 views

Suspend/Hibernate/restore and Reboot problems 15.04 Dell Inspiron 3451

There are many posts and questions about problems with lid closing leading to operating system states which require hard reboots; these reports come from across multiple kernels and releases of ...
0
votes
0answers
20 views

Computer won't restore from monitor power saving

When monitor power saving mode is on and the monitor falls asleep, I can't wake it up and have to do a hard shutdown. I've tried pressing keys, moving and clicking the mouse, unplugging and replugging ...
0
votes
1answer
368 views

How to scale intel_pstate driver on Ubuntu 15.04?

I nearly tried all the solution to scale the cpu frequency but no success. I have Intel Core i5-3210m 2.5Ghz-3.1Ghz. I want to permanently set it to 1.6Ghz with no turbo boost to improve battery ...
1
vote
1answer
57 views

Heating, projecting and lid closing problems in Ubuntu Gnome 15.04

Ever since I upgraded from Ubuntu 14.04 to 15.04 in April this year, I have been beset by productivity-reducing problems. I had started off unable to get the login screen on booting which got resolved ...
0
votes
0answers
35 views

PC is shutting down although the battery is charged 50% of above

I'm using Ubuntu 14.04 the problem is when I am using pc with plug in for charging or without charging from starting time it working normally.But when I plug out the pc from charger when the pc is ...
3
votes
0answers
47 views

Why does my computer try to shut down when I plug in headphones?

Using Ubuntu 14.04LTS. Noticed that when I plug in headphones, a menu appears asking if I want to "lock, suspend, restart, or shut down." Is this normal? How do I fix this if it isn't normal?
0
votes
0answers
68 views

Ubuntu 14.04 can't fully charge battery with windows 8.1 dual boot

I have a Toshiba Satellite E45t-A4100 dual boot windows 8.1 with ubuntu 14.04. There was no problem with installation. Normally the battery will charge to 70%. Sometimes it will charge to roughly 80% ...
0
votes
0answers
69 views

Lenovo B50 power management

Lenovo B50 power management is not working with Ubuntu 14 and 15 versions when shutted down the laptop is still running while only the screen is switched off, same when restarting Regards John
1
vote
0answers
99 views

14.04.3 wakes up as soon as putting to sleep

I have Ubuntu 14.04.3 32 bit OS. I set my comp to sleep after 5 minutes of idleness. It was running OK until today. I should say that handling of power management is not reliable in Ubuntu. My system ...
1
vote
1answer
1k views

How to set up gnome-screensaver?

I am running Ubuntu GNOME 15.04 and I have install gnome-screensaver, however after doing some searches through my system, and my system settings, I am unable to find any configuration settings for ...
2
votes
1answer
101 views

Ubuntu 15.04 suspend halt

I have laptop Lenovo E540 with SSD + HDD Ubuntu 15.04 on SSD with UEFI, kernel 3.19.0-26-generic Nvidia GeForce 840M with driver 346.59 The problem When I suspend the laptop, i hear HDD heads ...
0
votes
1answer
164 views

Disable low battery notifications/warning on 15.04

I would like to disable the low battery warnings on Ubuntu 15.04. My laptop seems to have a faulty charge port or has trouble detecting the true charge of any battery I put in it, even brand new ...
0
votes
0answers
104 views

Battery charge limit and critical battery action

Ubuntu 14.04 lenovo z50-70 here. Here's my situation. I am using my laptop with the power cord plugged in at all times because i essentially use it as a desktop. Never leave the house with it and ...
0
votes
0answers
172 views

Battery percentage jumps down to 6% from 50% or 60%?

So, as the title says, I have checked Power Stats in Ubuntu and Energy when Full and Energy (design) are the same which is 37.2 Wh but the percentage is funny with actual battery life left in my ...
0
votes
0answers
40 views

Absent power status indicator

I have no power status indicator on my top unity panel. All of the suggested solutions to restore it doesn't work for me. Also there is no power usage statistic in unity-control-center -> power ...
1
vote
2answers
48 views

Logitech Mouse power saving

Is there a way to put my Logitech wireless mouse to sleep after a while? When using windows if I don't touch the mouse for something like 5 min it is turned off automatically and when I touch it again ...
0
votes
1answer
220 views

Battery not fully charged (it shows 100%)

Ever since I upgraded from ubuntu 12.04 to 14.04 I've been noticing that the battery does not last as much as it used to. The bar indicator shows that it is fully charged but I ran tlp-stat and I got ...
-1
votes
0answers
48 views

Recently installed ubuntu 15.04 replacing windows 7, on thinkpad edge e430. unresolved battery issue?

tlp stat result: tp-smapi = inactive tpacpi = active i have tried (Lenovo ThinkPad Edge E430 Battery Problem), but this battery works fine on windows with think power manager. let me know if ...
0
votes
0answers
63 views

Issues with upgrade 12.04 to 14.04 (battery drain, freezes…)

I've been using ubuntu 12.04 for over a year without any issues with my laptop (MSI GT70.) It has an integrated intel graphics card and an nvidia GTX 870M. Therefore, I have been using the bumblebee ...
0
votes
0answers
21 views

Preformance profiles? How? 15.04

I'm experiencing a problem when using Linux (Ubuntu gnome 15.04 for now, but it does not matter what distro or DE to use). If i launch several applications my laptop stops charging, and starts to use ...
0
votes
1answer
72 views

Fan Periodically Overspeeds When On AC Power

My laptop is a Dell Inspiron 15R 5520 and for a while I have noticed that when it is on AC power, its fans will temporarily run at max for several minutes before returning to normal operation, and ...
3
votes
0answers
161 views

Laptop doesn't suspend when lid is closed - No state change

I have a problem about my laptop that doesn't suspend when i close lid. First the story. I bought a new Acer e3-112. It camed with win8.1 and i upgraded it to win10. Then i shrinked the hdd and ...
0
votes
0answers
15 views

Screen Switches Off And Also Kills Downloads

Im using Ubuntu 14.04 on most of the default settings. By default the screen switches off after 5min and "dims to save power". I have unchecked the lock checkbox so when I return to my computer I dont ...
1
vote
1answer
83 views

Ubuntu Aquaris 4.5 battery sometimes runs down quickly when not in use?

Checking the battery use for the Ubuntu phone Aquaris4.5 it shows an almost flat line when not used (wifi enabled, otherwise all the battery saving settings used) Occasionally (3times in the last ...
0
votes
1answer
64 views

Why does ubuntu freeze sometimes when I shut my laptop screen

I own a Lenovo Y50 running Ubuntu 15.04 64-bit and sometimes when Ii shut the screen the login screen is displayed after I open it back up again, but it is unresponsive and I can't do anything from ...
1
vote
0answers
18 views

fan off + system slowdown in battery mode

If my laptop runs on the battery, its fan is off/silent and the system sometimes slows down till complete freeze. I believe it's somehow related with power management. For comparison, when I run an ...
1
vote
1answer
55 views

How to down tune power consumption on laptop home server

I recently got a new laptop, so I decided to use my old one as a home server. The problem is that it's rather power-hungry and I would like to make it more energy-efficient. Would it be a good idea ...
0
votes
0answers
76 views

Ubuntu 14.04 with Asus Q550LF sleep mode issues

I recently installed Ubuntu 14.04 on my Asus Q550LF and for some reason I have issues with sleep mode. When I put my computer in "suspend mode" or when I shut it sometimes the screen won't work again ...
1
vote
1answer
49 views

Software Updater removed laptop-mode-tools after upgrading

After upgrading today to 14.04.3 via terminal, the Software Updater removed laptop-mode-tools saying it was an old package. Has laptop-mode-tools become obsolete in 14.04.3 or should I just ...
-1
votes
2answers
98 views

when i close my laptop lid my secund screen requiers password when set to do nothing

I'm new to Linux using Ubuntu 14.04.2 LTS 64-bit and using a Fujitsu lifebook a series. When I close my laptop lid while trying to watch a movie on my TV with the HDMI cable. the screen requires my ...
0
votes
0answers
63 views

Suspend to disk on ASUS eee pc 1005 HA under kubuntu 15.04

I just switched from openSuSE to kubuntu last week. I have only one problem with it on my eee-pc 1005HA: When I suspend to disk, it does not switch off by itself as it should. Waiting, until the ...
0
votes
0answers
20 views

How to detect the method which woke the computer?

I'm hoping to write a script that will, in the middle of the night, turn a suspended computer on and cause it to immediately hibernate. I'm well aware of the "hybrid suspend" options available, but I ...