Questions related to power management, particularly power saving measures.

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2answers
48 views

How to shutdown system if not charging

I am using Ubuntu 14.04 LTS. My battery is not working, i.e. it provides backup for around 5 minutes. Now when I download stuff, it sometimes takes around 5 - 6 hours. And I can't just hang around the ...
0
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0answers
32 views

putting a battery status icon into my stalone

I'm running Trusty-tahr using fvwm, so I don't automatically get access to the battery status icon that's available in the standard ubuntu desktop manager. I'd like to put the standard icon into my ...
0
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0answers
256 views

Ubuntu 16.04 battery percentage shutdown not working

I installed Ubuntu 16.04 on my Dell Inspiron and got an issue that my laptop is not shutdown even after battery is critical low and even after percentage action. My dconf setting are as follow: ...
0
votes
1answer
71 views

Does pm-powersave start automatically when running on battery?

So I just learned a bit more about pm-powersave, but couldn't find if it automatically kicks in if you're running battery power. Does somebody know if it does this? And if not, is there a way to make ...
1
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1answer
186 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
412 views

Upgraded Ubuntu 16.04 sometimes fails to sleep

I upgraded my system from 15.10 (Ubuntu + xfce = XUbuntu) to 16.04 and afterwards it happens 50% that when I send system to Sleep through "start menu > turn off > sleep" that screens go blank and ...
1
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1answer
176 views

16.04 wont suspend when lid is closed

I have a HP Pavilion x360 I was able to get suspend and hibernation to work however it only works my the menu. When I close my lid it it just turns off the display. It seems that any option I select ...
0
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2answers
395 views

Since 16.04, I don't have 'when the lid is closed' options in power settings

Old OS/kernels: Ubuntu 15.10 with 4.4 kernels manually installed. New OS/kernels: Ubuntu 16.04 (no custom kernels, so 4.4 in place). Since upgrading to 16.04 it doesn't suspend correctly. when I open ...
2
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0answers
211 views

Problem shutting down or restarting after suspend.16.04

Yesterday I noticed when I went to restart my laptop, it wouldn't. The computer is a brand new Dell XPS 13 9350. After looking into some things I noticed that it would only happen (Not shutting down) ...
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0answers
329 views

Battery life reduced after upgrade to kernel 4.4.8 (16.04 LTS)

UPDATE: I have elaborated more on the problem in another post. Read it here. EDIT: Upgrading to 4.5.2 stable does the same thing. Is it the AMDGPU using more resources? How can I disable, I care more ...
0
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0answers
62 views

Screen re activated imidiatlly after idle

After upgrading to Ubuntu Gnome 16.04 LTS, the screen power saver started to malfunction. When the desktop is idle, it turn off the screen as usual, but a second later it turns the screen back on. ...
7
votes
4answers
5k views

With Ubuntu 16.04 laptop doesn't suspend when lid is closed

I have a Dell 7737 laptop, and with Ubuntu 16.04 it no longer suspends when the laptop lid is closed. With 14.04 closing the lid put the laptop to suspend as expected. However, I reloaded the system ...
3
votes
1answer
109 views

Auto dimming laptop keyboard backlit when idle

On Windows 10, my laptop's keyboard backlit automatically turned off after a minute or so of inactivity. As soon as any activity occurred, they turned back on. On ubuntu, if I run the following echo ...
0
votes
1answer
89 views

How do I configure the low battery notifications?

My laptop routinely runs between full and critical charge a few times over the course of a day (yes, it's old). Before I updated to 16.04, Cinnamon used to notify me at: 20%, then again at 10%, then ...
3
votes
1answer
2k views

Ubuntu 16.04 is not providing working suspend or hibernate feature

I previously used 14.04 and i used to suspend when ever i am done and need to resume my task later . That shuts my machine down(except the LED indicator) which didn't consume power and no heating so i ...
0
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0answers
14 views

laptop screen suspends after unplugging charging cable, also disables wi-fi connection : ubuntu 14.04

Whenever I unplug the charging cable cord from my laptop(Lenovo G580), the screen temporarily suspends, after blinking 1-2 time(s). Then I press spacebar (or maybe any key can work) and screen ...
0
votes
2answers
91 views

Can I have a countdown window show the time until next suspend?

Occasionally I leave my computer unsuspended when I need to go somewhere but I am leaving it with people I absolutely trust and I will be back shortly so no real need to suspend (like if it's family ...
4
votes
1answer
5k views

Why isn't Hibernate in Ubuntu 16.04 working and how to fix it?

I have Kubuntu 16.04 64-bit installed on my HP Pavilion 17-f000 Notebook. I've tried the steps from the ubuntu 16.04 wiki, but the sudo pm-hibernate terminal command did nothing and creating the /etc/...
0
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1answer
29 views

Power management dies after suspend in Kubuntu 15.10

Ever since I upgraded to Kubuntu 15.10 from 14.10 power management dies after waking up from suspend (to disk or ram). The only thing that still works is dim display but it won't even un-dim. Screen ...
0
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0answers
23 views

Save battery by setting apps in inactive workspaces into a state like minimized

I'm interested if it's possible to make GUI applications on inactive workspaces (Unity) to behave like minimized GUI applications (is it the idle state?) in order to save battery life. What I mean ...
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 ...
-1
votes
2answers
125 views

Is there a 'Power Monitor' for Ubuntu GNOME?

I am running Ubuntu GNOME 15.10 with GNOME 3.18, and there is one thing lacking, a power monitor tool which will display the status, the one in Ubuntu MATE looks like this: Ubuntu (Unity) also ...
0
votes
1answer
17 views

Playing video prevents sleep on low battery

When a video instance is displayed (firefox/chromium html5 video, openshot video editor etc.), the computer does not go to sleep under any circumstances, and it is even forced to stay until the ...
1
vote
0answers
128 views

Can't resume after suspend and power off issues with ubuntu 14.04

I installed a fresh copy of Ubuntu on my desktop computer and now I face several power related issues: Can't resume after I suspend the system: When I suspend the system, it screen goes blank and ...
0
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0answers
58 views

Can't power off the computer running Ubuntu 14.04 LTS

I know this question has been asked so many times. For 2 days I keep trying to figure out how to shut down and power off my computer but it just wont power off. When I click "Shut Down..." from the ...
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0answers
53 views

Ubuntu 14.04 panel shows battery level as arithmetic mean of laptop and bluetooth mouse levels

I have two notebooks (Asus Zenbook and Lenovo Thinkpad) with Ubuntu 14.04 installed and both show the same behaviour: The battery level indicator in the Unity panel shows the exact arithmetic mean of ...
0
votes
0answers
47 views

How to force enable Turbo Core (AMD) on Ubuntu 15.10?

I'm running a Samsung Ativ Book 9 lite with Ubuntu 15.10 installed. The processor is supposedly equivalent to an A6-1450 Temash 1.0 GHz (1.4GHz boost) The problem I'm having is that turbo mode only ...
1
vote
1answer
105 views

Lenovo b50-10. unclaimed hardware

Since installing linux mint 17.3 the following is not working: wifi (stops after a few minutes), bluetooth, shutdown or hibernate, DVD not mounted. I have tried all the solutions I've found on ...
0
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0answers
28 views

How configure Ubuntu to suspend after inactivity based on time of day?

I know we can configure Ubuntu to go to sleep after being inactive for "x" amount of time. But I want that to be based on time of day. Say, suspend computer if it has been inactive for 1 hour and it ...
0
votes
1answer
48 views

Laptop battery high/low alarm

My laptop battery didn't last half as long as I had hoped and it is an internal one. That is, it is very inconvenient to replace. I would like my replacement battery to last as long as possible, and ...
1
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0answers
79 views

Laptop not resuming after suspend

Today, I got a couple updates to my laptop running Ubuntu 15.10. Now when I suspend my laptop either with the suspend button or by closing the lid, it doesn't resume after I open the lid or touch ...
0
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1answer
69 views

Laptop not properly suspending after I close lid

Dell Inspiron 3542. When I close my laptop lid and put it in my bag, I often take it out later to find it extremely hot and with the battery drained. I also often find that my monitor turns on ...
0
votes
2answers
243 views

Ubuntu doesn't look like sending power to an usb port used by a device that uses 2 usb ports to function

Update since the latest release of displaylink drivers this issue was solved - it was a driver issue I'm connecting a Lenovo Thinkvision Displaylink USB external monitor to a Lenovo Thinkpad T450s....
1
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0answers
71 views

Battery Status not updating

After I installed Ubuntu 14.04 (before I had Ubuntu 13.10), the battery indicator stopped working properly. It always shows the battery level that was at the start up (when I open the laptop and boot ...
0
votes
1answer
87 views

BayTrail CPU and Ubuntu 15.10

I have a machine with an Asrock q1900b-itx mobo and I'm experiencing random freezes of the system. By freeze I mean everything hangs and there is absolutely nothing that can be done except reset. I've ...
0
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0answers
34 views

Suspend Troubles on Ubuntu 15.10 32-bit

I am running Ubuntu 15.10 32-bit on my Acer C720 chromebook. The screen keeps on turning off and the system keeps on suspending even when I set both the "Suspend when inactive for" settings in the ...
0
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0answers
39 views

Radeon driver power levels on RV670

I have just installed Ubuntu 15.10 on an AMD64 box with a Radeon HD 3850 graphics card (RV670, AGP version) and I'm using the radeon driver that comes with Ubuntu. So far, everything is working fine. ...
0
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0answers
20 views

charging capacity while dual booting?

sorry if this has already been answered, I looked around for a while(here/online) and could not find the case of dual booting but just Ubuntu standalone. Say I have a dual boot win7 and Gnome. How ...
1
vote
1answer
141 views

Intel wireless works only when acpi=off on 16.04

I've bought recently brand new ThinkPad X1 Carbon 4th generation, trying to set up Ubuntu 16.04 (beta 2 at moment of writing). Can't get wireless and ACPI working together, they kind of exclude each ...
0
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0answers
39 views

how to make sure ubuntu will suspend after 30 minutes does not matter what program is running

Last night I was running a vlc program and also using flash in firefox. Usually I set the computer to suspend when inactive for 30 minutes, but it did not. I want to suspend my Ubuntu after 30 minutes ...
0
votes
1answer
32 views

xfce4-power-manager closed when Battery is removed

I am Running Lubuntu 15.10. And I remove my Laptop battery during night times to prevent overcharging of my battery. And for some reason xfce4-power-manager is closed when i remove my battery(While ...
0
votes
0answers
41 views

Interpret upower result (laptop battery dead ?)

I recently and sudddenly had my laptop battery which display that it is fully charged but directly switch off when i try to disconnect the power cable. Laptop have less than one month and is seems ...
0
votes
0answers
49 views

Suspension problem

I recently installed Ubuntu 14.04 LTS to dual boot with Windows 8.1. In the past (immediatly after installing Ubuntu) after I suspended my computer the screen went black. But I "corrected" this ...
0
votes
0answers
12 views

Higher Power consuming turned off Display

i have a question about the power consumption of my laptop. I wanna setup my laptop as an small media server, because of that i was checking the power consumption and found out that the laptop need ...
0
votes
1answer
140 views

Ubuntu keeps resetting HDD APM level to 1 on wakeup from suspend

I have a problem with my Ubuntu 15.10 amd64 system on my ASUS R513C laptop. I am setting the APM level on my HDD to 254 by running sudo hdparm -B 254 /dev/sda by hand and this fixes a problem with ...
0
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0answers
45 views

Performance mode in a Desktop enviroment

I'm running Ubuntu Gnome 15.10 x64 in a desktopPC. What really annoying me is that each restart or start begin running in a power-safe mode.. It could be useful with a laptop, but in a desktop ...
1
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0answers
39 views

rtl8723be high power power consume Ubuntu 15 and 16

i am using this driver power-consuming by powertop is: 10.1 W 9.3 pkts/s Device Network interface: wlp4s0 (rtl8723be) i think this driver had some problem and that is cause of this problem. ...
0
votes
0answers
30 views

My laptop doesn't get suspended properly

On Ubuntu 14 it's worked well always. But on Ubuntu 15.10 when I close the lid, it's not going to sleep properly anymore: the display gets "black" but the laptop actually doesn't get suspended because ...
3
votes
1answer
41 views

run script when power mode changes

I wrote myself a bash script and when this script is called it changes my display brightness. Now i want to run this script when my ac-adapter is unplugged or the ac-adapter gets plugged in. Where can ...
0
votes
0answers
26 views

Massive throttling when switch from charger to battery on Ubuntu 15.10

When I watch a 1080p video on youtube, I got easy 60 frames/s. But when I plug out the charger the framerate drops below 20 f/s (even if battery is 100&). The governor is set to performance, but ...