Questions related to power management, particularly power saving measures.

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0answers
309 views

How to find CPU shutdown temperature? (Think it's called TJMax, maybe not though…)

In Windows there is a program called CPU Temp which shows various CPU temperatures, one which being the temperature at which point the computer will shut down to prevent damage to the CPU. I have a ...
0
votes
2answers
616 views

How do I Manually Limit CPU Usage? [duplicate]

I have an old laptop prone to overheating and a good solution I found was limiting it's CPU usage to below 50%. On Windows, I can do this by changing the power plan I am currently using, and altering ...
0
votes
1answer
436 views

How can I enable USB power after pc shutdown?

I'm using Ubuntu 13.10, my motherboard is : Manufacturer: Intel Corporation Product Name: DP965LT Version: AAD41694-206 I need to have a power supply from USB even when my pc is turned off. I've ...
3
votes
1answer
2k views

13.10 Laptop goes to sleep instead of shutting down when lid is closed

Sometimes (but not always), I use my laptop exactly like a desktop computer: I power it on with the lid closed and an external monitor and USB keyboard and mouse connected. When I later want to shut ...
2
votes
2answers
11k views

Ubuntu drains battery very fast compared to Windows [closed]

EDIT/UPDATE: Here is a screenshot of powertop tuning report: Link I'm very new to Ubuntu. Sorry if there are a lot of similar question to this but the answers I found from others differ from one ...
4
votes
1answer
1k views

Lenovo Ideapad battery limit

I have an Ideapad Y400 running Ubuntu 13.10. It previously ran Windows 8, and had a Lenovo utility to limit the battery charge to 60%. Now that I've installed Ubuntu, of course, the utility is gone. ...
1
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0answers
166 views

My system restarts after sleep/suspend

I just replaced windows 7 on my old machine (4 years) with Ubuntu 13.10 and the installation seemed smooth. However, when I do a wake-up call from suspend/sleep, the laptop restarts when I shutdown, ...
2
votes
2answers
893 views

Why is my notebook going to sleep when lid is closed even If I disabled it?

Here is my situation: I installed Xubuntu 13. 10 I added the Cinnamon PPA and installed Cinnamon 2. 0 I removed all the GNOME stuff, that came with Xubuntu Everything went fine so far...but... ...
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0answers
38 views

a step away from hibernate! [duplicate]

I'm having trouble enabling my hibernate feature. I have installed Ubuntu 12.04 LTS 64bit using Wubi on my Asus N53SN hybrid laptop ( Intel + Nvidia). After Updating through ubuntu Update manager AND ...
2
votes
1answer
1k views

Wake-on-lan power on the system but doesnt start Ubuntu?

I have followed these instructions everything worked pretty fine but I have got this problem when I run the wakeonlan mac-adress-of-the-machine it turns the system on but doesnt start the Ubuntu ...
0
votes
1answer
712 views

How to cut off the power supply of the mouse, keyboard and speakers after shut down my computer?

How to cut off the power supply of the mouse, keyboard and speakers after shut down my computer? Although the computer is shut down, the light of mouse, keyboard and speakers are still here. It ...
2
votes
0answers
469 views

Apple aluminium keyboard hub is supplied to little power

I have an Apple aluminium keyboard with an integrated hub. On Mac OS X, I'm able to connect both my mouse and a USB pen drive while on Linux, the power limit is exceeded when connecting more than one ...
20
votes
6answers
7k views

How can I optimize Ubuntu for minimal energy usage?

How can I optimize Ubuntu for minimal energy usage? I use my laptop for development, but also for writing. I have a 9 hour flight coming up and a 6 hour battery life when already using limited ...
3
votes
2answers
3k views

How to avoid shutdown on critical battery?

There exists a well-known bug in gnome-power-manager, which breaks Ubuntu on computers with 2 or more batteries. If one is empty, Ubuntu will shutdown ('critical battery'). As a workaround, it can ...
0
votes
1answer
210 views

How to make resume script wait for ivtv initialization

I have a TV tuner card with an infrared sensor. I have made a script to remove/start ivtv kernel module and shutdown/restart lirc service on suspend/resume. The problem is that the lirc service start ...
2
votes
2answers
869 views

Thinkpad X1 Carbon won't suspend after upgrade to 13.10

I upgraded to 13.10 and have since had problems with suspend when I close the laptop lid. Prior to the upgrade, if you closed the lid it suspended the computer and all was well. After the upgrade ...
0
votes
1answer
164 views

Battery failing on Acer Aspire One 722 when starting

I have been running Ubuntu 13.04 on my Acer about month ago, it has worked perfectly, but some days ago the battery hasnt allowed the computer to start. It starts normally with the computer connected ...
0
votes
3answers
117 views

Cronjob for specific hours

I need a cronjob with criteria to power on/off a TV on the basis: Mon-Fri, power on the screen at 07.00 and power off the screen 17.00. Friday after 17.00 to Monday morning to be powered off. I'm ...
1
vote
1answer
1k views

How to disable powerbutton in 13.10 minimal?

I have my IR receiver connected to the physical power button for turning on and there's a separate remote button for turning off. How to disable the power on button from shutting down the computer? ...
2
votes
1answer
54 views

Where can I find the power management settings?

How can I change the energy savings settings? I want the program to turn off the screen after three minutes and go on stand-by after 7 minutes. Thanks
1
vote
1answer
820 views

Kubuntu Energy Saving event on power button pressed not working

My Aspire 1810TZ is running Kubuntu 13.10 on an encrypted drive. I have enabled hibernation in file /etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla [Re-enable hibernate by ...
1
vote
0answers
32 views

Changing suspend timer to more than 1 hour [duplicate]

In Ubuntu 13.10, I want to change my suspend timer to go to sleep after 3 hours, but in System Settings I can not do that. I'm wondering is there any way to set it? I've already tried the ...
0
votes
2answers
985 views

Ubuntu 12.10 loud fan noise hp compaq 615

I am totally new to Linux, i installed it yesterday, since than i my fans are really loud, i did not have this problem on windows. I saw this post on this site How to control fan speed? But i am ...
2
votes
0answers
113 views

How can I make multiple monitors go to standby independently?

I have a two-monitor setup. One monitor I use all the time, the other sometimes. I find myself switching the second monitor on and off quite frequently, so as not to be distracted by its contents. Is ...
0
votes
1answer
785 views

Dell Inspiron 5520 fan always working

I was trying to find a solution for my problem, but without any success. Namely, I decided to move to Ubuntu system (from windows 8) and I installed latest one for my laptop (12.04 LTS). I installed ...
11
votes
2answers
8k views

13.10 hangs on waking from suspend except when suspended from console

I know waking from suspend is an issue, but this looks like a separate bug. When I suspend 13.10 on HP Pavillion dv6 (AMD 6770M/fglrx 13.10.10) from x, it suspends normally but freezes when waking. I ...
2
votes
1answer
105 views

Shutdown incomplete when the lid is closed after pressing shutdown

I press shutdown button and if the lid is closed before the shutdown process end, this one resumes after I reopen the lid
2
votes
1answer
2k views

How to let screen time out on sign in screen [closed]

I have Ubuntu 13.10 set up on an older PC. If I am logged in as a user, then the screen timeout and power saving mode works as expected. However, if nobody is logged in, the screen never times out, ...
0
votes
1answer
217 views

WOL doesn't wake PC (keyboard does). How to fix?

I manage to get my PC to hibernate through pm-hibernate --quirk-s3-bios. Suspend strangely enough doesn't work (PC reboots immediately to a new state and Ubuntu starts a disk check, but that's only as ...
3
votes
1answer
1k views

Does TLP dynamically change according to power source?

I know that TLP automatically starts when the system boots up, but I wonder if it dynamically changes according power source. For example, when I manually type sudo tlp start when I'm running my ...
1
vote
2answers
1k views

Laptop doesn't suspend when lid is closed

I have LTS Ubuntu 12.04 and when I close my lid the screen goes black but doesn't suspend because I can feel it getting warmer as if it was processing something. When I open it back up after an hour, ...
3
votes
1answer
3k views

How do I stop Xubuntu 13.10 from suspending when I close lid?

I just upgraded to 13.10 and tried configuring at the Settings Manager, but it doesn't seem to work. So I tried configuring xfce4-power-manager/lid-action-on-ac and it didn't work eiter. Then, at last,...
3
votes
3answers
5k views

How to disable screen and powersaving during Video Playback

So I have noticed, even going back to Ubuntu 11.xx releases the screen for some ungodly reason dims itself while a video is playing. Iv'e even observed the thing go into sleep mode with the audio ...
4
votes
2answers
2k views

Change power button to 'Ask' in Xubuntu 13.10

I have recently installed Xubuntu 13.10 on my Vaio vpcea making me a Linux beginner. The problem is that laptop's power button is right on the edge of the bezel making it far too easy to press ...
0
votes
1answer
210 views

Power Consuming by Power statistics

Does the power axis in power-time curve in 'power statistics' application denotes to watt per hour ?
0
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0answers
22 views

Knowing how much energy my computer consumes per houre [duplicate]

Is there a way to find out how much energy my computer is using? My friend tells me that Ubuntu has a 'power statistics' application to do this. Is this correct and if so how do I use it?
9
votes
2answers
7k views

Closing laptop lid suspends Lubuntu, since upgrade

I recently upgraded my Lubuntu from 13.04 to 13.10. I have my xfce-power-manager set on the lock screen action on lid close, but closing the lid still suspends the laptop in 13.10. How can I set it ...
4
votes
1answer
3k views

Xubuntu 13.10 shuts down without asking when power button pressed

Since I upgraded to Xubuntu 13.10, I can't seem to make the power button bring up the xfce shutdown dialog. I never had this problem on 13.04, but even after a clean install it persists. When I use ...
1
vote
1answer
1k views

Xfce Power Manager on Xubuntu 13.10 doesn't work

The problem is that its actually works, but something works with Xfce Power Manager at the same time. For example, I set that if I pressed Suspend button (on my Lenovo B560 its Fn+F2 hotkey) then ...
4
votes
3answers
17k views

How to enable hibernate on Ubuntu 13.10? [duplicate]

Something I usually do after installing Ubuntu is reactivate the hibernation function. I find it quite useful to function for the more energy concious. Typically, I'd complete the instructions in ...
0
votes
1answer
241 views

power method script not running on startup

I recently made this entry asking about power profile. I followed the instructions which were liked in the answer. It worked. However it is not longer working after I reinstalled grub. This is what I ...
0
votes
1answer
219 views

How can I change my graphics card power profile?

The fan on my card is noticeably louder in ubuntu than in windows. I suspect this is because it's running on a medium / high power profile, how can I change it to low? Video card: Radeon 9670
1
vote
1answer
418 views

Wi-fi goes out after my computer suspends

First off, in 13.10, there is no hibernate option in the power setting. And even then, when I change the setting they don't stay saved like they did in 13.04. But my main problem is when I wake my ...
50
votes
4answers
31k views

Hibernation is still missing from menu in 13.10 after enabling via polkit. How to enable?

I know that since 12.04, we need to add a policykit rule to enable hibernation (see question How to enable hibernation? and the Official Documentation). I can successfully bring my laptop into ...
2
votes
1answer
525 views

Ubuntu Heating Up, Continuos Fan, Hadoop Installation Worries on AMD 64

I have a laptop, Model: Compaq Presario CQ40, RAM: 2.7 GB RAM, Processor: AMD Athlon X2 Dual Core QL - 64*2, Ubuntu 12.04.3 LTS 64 bit and Windows Vista 32 bit (Factory Installed) My laptop gets ...
52
votes
1answer
42k views

Ubuntu Server 13.10 now goes to sleep when closing laptop lid

I recently upgraded to the latest version (13.10). I have it running on an old laptop. Since the upgrade, whenever I close the laptop lid, it goes to sleep mode. Any idea on how to fix? I've ...
2
votes
4answers
18k views

Jupiter in Ubuntu 13.10 (Laptop Overheating)

I was wondering if Jupiter (Interface for display, power and device control) will work in Ubuntu 13.10, because my laptop (Toshiba Satellite C855D, AMD A6-4400M with Radeon HD Graphics running Ubuntu ...
1
vote
2answers
940 views

/etc/pm/power.d scripts not executing after update to 13.10

I recently updated to Ubuntu 13.10 and realized that scripts in /etc/pm/power.d do not fire anymore. Has something changed in the way pm-utils work? Is there any way to make it work. I have a script ...
1
vote
2answers
879 views

Ubuntu 13.10, bumblebee and power management problem

First of all my laptop is asus n55sf with ubuntu 13.10. I've installed bumblebee and it's working quite good (I've tried e.g. optirun firefox and it's working fine). Right now I have problem with ...
1
vote
0answers
435 views

Battery Not Present XPS 15z U13.10

So I recently reopened my old laptop which was running ubuntu 12.04 lts. When I opened it, i noticed the battery was stated has ''Not Present'' in the top menu bar. When I click on that label, it ...