Questions related to power management, particularly power saving measures.

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1
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0answers
8 views

Ubuntu showing incorrect battery percentage on MacBook Air (2011). Is it a bug?

I am running Ubuntu 16.04 on a 2011 MacBook Air (directly, not using virtualization), and the battery percentage seems off. I left the charger plugged in until the LED turned green, and yet the Ubuntu ...
4
votes
3answers
876 views

Is there any way to make Ubuntu not to suspend while a download in progress?

Is there any way? How to script in /usr/lib/pm-utils/sleep.d to check ${downspeed eth0}, ${upspeed wlan0}, ${upspeed eth0} and ${downspeed wlan0} and to set the system not to suspend while a ...
1
vote
0answers
6 views

Battery drains fast in Ubuntu14.04LTS. Screen goes out when switched to NVidia proprietary driver

I am facing power issues on my HP Pavilion 15 - p073tx laptop running on Ubuntu 14.04LTS. The battery drains much faster as compared to when I run Windows(I have a dual boot). One solution I found is ...
0
votes
0answers
5 views

How to disable USB3 LPM (hardware-controlled power management)?

I have some issues with USB3 flash drives in Ubuntu 16.04. They keep going into U1/U2 mode (see here for more information), occasionally resulting in I/O errors. I already disabled traditional (...
2
votes
2answers
2k views

Ubuntu 14.04 does not recognize my battery

For the last 3 years I've been using a Samsung notebook. I was using Ubuntu 13.10 until 2 weeks ago. Then I decided to format and install Ubuntu 14.04 LTS. Everything was working great, until the ...
1
vote
4answers
1k views

Why is my system not waking up from suspend?

I freshly installed Ubuntu 15.04 sharing a preexisting home partition (Mint 17.1). However, in neither Mint or Ubuntu the computer is waking up from suspend mode. The status LED keeps blinking and the ...
0
votes
1answer
14 views

I need to make a usb port to be dumb to any devices newly connected

Could anyone help me with my trouble with usb? It sounds ridiculous probably but I need to make one of usb ports do not answer to any devices programmatically. But I need the port to continue provide ...
0
votes
0answers
17 views

How do I configure power & sleep settings on Ubuntu Server 16.04?

I'm trying to run a LEMP web server on a spare laptop (HP 2000), but don't want the display to always be on, nor do I want it to sleep. I have the basic server part done. Thank you!
0
votes
0answers
10 views

Energy activity monitor [duplicate]

I’ve seen some graphical programs that show the current energy consumption of running programs. Is there anything that will display the average energy consumption of any programs that have been ...
148
votes
12answers
145k views

How can I tell Ubuntu to do nothing when I close my laptop lid?

I would like closing the laptop lid to be a no-op. How can I do that?
-1
votes
1answer
60 views

CPU Governor Not 'Idling' After Kernel Update

Last night, my laptop running Ubuntu 14.04 asked to update the kernel to 3.16.0-43. I noticed this morning that Conky is now reporting that my CPU is running around max all the time now. Before ...
5
votes
1answer
47 views

Are there any power consumption indicators?

I would love to see how much power my notebook is consuming all the time. Therefore I want an indicator that constantly (interval of 1 second maybe) monitors the current power consumption (measured ...
0
votes
2answers
32 views

Why does Toshiba C50-C stay hot while suspended

I have installed Ubuntu 16.04 64 bit along side Windows 10 on a Toshiba C50-C. Intel I7 gen 6, 8GB RAM, Nvidia Geforce 930M, Intel Dual Band Wifi 3165 Everything works perfectly except Suspend. The ...
0
votes
0answers
23 views

Power saving mode in ubuntu [on hold]

Is there any built in power saver mode in Ubuntu? If not, why is it so?I wish to do a project on it.
0
votes
0answers
60 views

Ubuntu 16.04 doesn't suspend and shut down properly

I installed Ubuntu 16.04 alongside with Windows 10 a month ago. All this time I've noticed that after some time working, when I close laptop's lid and after open it, Ubuntu won't run. And I hear that ...
0
votes
0answers
3 views

Screen flickering when battery low in Kubuntu 16.04

some days ago I tried to install nVidia drivers but nothing came up, so I reverted (or I guess so) to the "original" situation. Everything works fine (actually I don't neet my card, integrated ...
0
votes
1answer
22 views

battery from laptop does only work when power cord is plugged in

I'm using a Asus laptop, about three years old and since I Switched to Ubuntu (16.04) it shows that the battery is fully charched, but when I disconnect the power cord, the laptop turns off. I can't ...
2
votes
2answers
4k views

Lubuntu 14.04 Tired about suspend e hibernation “power manager not authorized”

Below the post, last configuration I used, it seems works well. I've Lubuntu 14.04 installed on my netbook (aspire one ao-532h). I am using it like a desktop with external display and input devices. ...
0
votes
0answers
17 views

mate panel power button doesnt work any more

So a friend of mine deleted his power button, and I was about to tell him, hey, reset it with the command: mate-panel --reset (I ran it to verify that it would work, before I would tell him to do it) ...
0
votes
0answers
26 views

Totally disabling shutdown?

I have a few systems running 14.04 LTS that my employees keep shutting down. I don't really have any need to shut the systems down ever, as long as I can reboot if it ever crashes. How can I totally ...
34
votes
2answers
15k 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 ...
0
votes
1answer
61 views

[16.04]Laptop behaves awkwardly when I'm running ubuntu

This may seem strange. But last month I bought a new laptop from HP and I installed Ubuntu 16.04 along side windows 10. From a month now, I'm observing quite unnecessary things going on and a bit ...
1
vote
0answers
261 views

Failed to bring machien into sleep via pm-suspend

When execute pm-suspend, I got I/O error. And after checking other similar posts, didn't found a solution that fix the issue. The OS on pc: The pc has dual operating system: win8.1 mint mate 17.2 ...
0
votes
0answers
20 views

Computer shuts down when I close the lid

I'm using a dell inspiron laptop with dual booted ubuntu and windows10. Ever since I dual booted ubuntu, every time I close my lid for more than a few hours, my laptop shuts down. The settings are set ...
0
votes
0answers
46 views

Ubuntu 16.04 LTS - Poor battery life on Intel HD Graphic

I just switched from Windows 10 to Ubuntu 16.04 LTS and I am quite satisfied with it after installing and configuring Gnome Shell. However, like everyone, I encounter a significant drop in terms of ...
1
vote
1answer
27 views

Screensaver/black screen doesn't start on its own

Running 16.04, 5 minute inactivity timeout, sometimes the screensaver (or blank screen, to be accurate) won't start until I hit Super+L and lock the session. Suggestions? Running Nvidia 367 drivers, ...
1
vote
1answer
185 views

PowerTOP issue with fresh 16.04 install on ThinkPad E555

Here's what happened when I tried to set optimum settings after installing PowerTOP: Reading package lists ... Done Dependency tree. Status information can be read .... Done Suggested packages:   ...
0
votes
1answer
69 views

Intel 7260 bluetooth device (usb-device-8087-07dc) at 100% usage

My Intel 7260 bluetooth device is constanly draining battery. As per powertop: 13.9 W 100.0% Device USB device: usb-device-8087-07dc I have both bluetooth and NFC ...
0
votes
0answers
8 views

How to replace Suspend with Hibernate on a laptop with kubuntu16.04 [duplicate]

I dont have any option for hybernation. sudo pm-hibernate works so its a supported function. How to do it when my lid is closing instead of Suspending?
2
votes
5answers
3k views

Laptop Battery Draining Too Fast. Laptop is too hot

I have HP ProBook 4540s with CPU Intel(R) Core(TM) i3-3110M and GPU AMD Radeon HD 7650M and Intel(R) HD Graphics 4000. (Intel® Ivybridge Mobile also.) OK, the problem is that the laptop is getting ...
14
votes
11answers
49k views

How to stop screen going black after 10 min

My OS is Lubuntu 13.04. After 10 mins of inactivity the screen goes black. What I did to stop it without effect: uninstalled xscreensaver completely in power setting I set to never blank the screen ...
0
votes
2answers
561 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
0answers
67 views

Is there any GUI for Intel P-state fine-tuning?

I like using indicator-cpufreq, but I'd also like to use Intel P-state, as it sound like promising. The problem is, you can't really control it's behavior. I've tested it a lot and came to conclusion ...
0
votes
0answers
77 views

Ubuntu 16.04 - Black screen on Suspend, system doesn't suspend

When I suspend my system (desktop with only Ubuntu on it), the screen goes black but the fan is still running. The only way to get out of this state is to power cycle the computer, repair packages and ...
0
votes
1answer
23 views

Why does my laptop's screen remain black when I try to unlock it?

After locking my laptop, every so often, when trying to unlock it, the screen remains black. I see no cursor, and I can't switch to any of the other TTYs either. I end up having to hard reset it. I'...
1
vote
0answers
48 views

Battery capacity below 100% in Dell laptop and battery misbehaving

I just bought a Dell Inspiron 15 5000 laptop with a AMD A10-8700P CPU. I removed Windows 10 and installed Ubuntu 16.04. When plugged in, at random times, the battery icon will appear showing that the ...
80
votes
19answers
82k views

How to prevent my screen from either dimming or the screen-lock starting when watching YouTube?

My screen brightness used to dim after a few seconds to preserve battery. This is default in Ubuntu 12.04. However when watching video it should not dim. This works correctly when I watch videos ...
5
votes
2answers
3k 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 ...
3
votes
0answers
23 views

Battery Use Grouped By Application

Is there a way (other than powertop) I can see how much of my laptop battery's charge was used for each application over the current discharge cycle similar to how Android Marshmallow does?
1
vote
2answers
1k views

How can I restart unity after I resume from suspend?

This may sound like a stupid idea but I like to have a transparent top-panel which can be configured in Compiz Config Settings Manager, but when I resume from a suspend it's no longer transparent and ...
4
votes
1answer
81 views

Cooling fan never reaches high speed, even if clearly needed

CPU consumption goes very high (which obviously shouldn't) when watching video on Chrome. This is due to some regression that has appeared recently (it wouldn't happen before), but that is not the ...
1
vote
0answers
67 views

Suspend problem on Ubuntu 16.04

I installed Ubuntu 16.04. When I run the terminal command sudo pm-suspend my computer suspends, and pressing any key brings it out of suspend. But when I press the "Suspend" key on the keyboard or ...
3
votes
0answers
39 views

Ubuntu 16.04 failing to suspend and opening applications by itself

I have a very strange problem. After installing stock Ubuntu 16.04, I noticed that whenever I close the lip on my laptop and come back a few hours later, every application (on the launcher) is running ...
368
votes
8answers
310k 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?
4
votes
1answer
87 views

How to shut down the computer safely by pressing the power button?

So this is pretty simple: when I press the power button whilst the machine is on, it comes up with a menu (of which one of the options is to shutdown) However, I just want it to just start shutting ...
0
votes
2answers
64 views

Help for suspending session or hibernating

I installed Ubuntu 16.04 LTS. I want to put the system in suspend or hibernate mode and I have activated hibernation. When I do sudo pm-suspend or sudo pm-hibernate, the system apparently obeys, but ...
0
votes
1answer
4k views

Disable automatic screen dimming

I currently have three computers running Ubuntu. With two of them, If I don't touch the mouse or keyboard... nothing happens. However, with the third, the screen gets dimmer after about 60 seconds of ...
1
vote
3answers
2k views

Bad battery life on Xubuntu 16.04 Lenovo T460s

The battery life of my new Lenovo T460s is very bad (about 4,5h with a little bit browsing and half display contrast). Xubuntu 16.04 shows two batteries (SANYO 00HW022 and SANYO 01AV405). They were ...
0
votes
0answers
13 views

Power issue in Ubuntu 14.04

I am running Ubuntu 14.04 on my laptop. After recent system updates, I encountered a problem with my battery. My laptop battery from 40% directly start showing 2% and after that laptop hibernates ...
7
votes
4answers
36k views

How to make my screen brightness not change when I plug my laptop in

I do not want my laptop to change brightness when my laptop power is plugged in or unplugged. I set my brightness based on how bright my surroundings are. If I am in a dark room, I set my brightness ...