Questions related to power management, particularly power saving measures.
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37 views
Hibernation in Ubuntu [duplicate]
Possible Duplicate:
How to enable hibernation in 12.04?
It's pretty well known that hibernation doesn't work in 12.04 by default. However I have installed some of the power management ...
0
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0answers
50 views
KDE remains in critical battery mode although plugged in
I have KDE set up that it does not switch off the screen when plugged in, but shuts the screen off in battery mode. In critical battery mode, it switched it off pretty quickly.
But when I have the ...
0
votes
1answer
94 views
Can an insufficient power supply freezes Ubuntu?
Several months ago my ubuntu (10.04) started to freeze some minutes after boot. I didn't reboot, just get stuck (mouse, keyboard, etc.)
One day it didn't boot at all. It was dead. I tested the power ...
0
votes
2answers
452 views
Reducing power consumption of second HDD
I'm getting a laptop tomorrow with an SSD as the primary (operating system) drive, and I will be putting my old laptop's HDD into it as a secondary drive for holding music etc.
Since HDDs use power ...
2
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0answers
1k views
How to keep battery charge at 80% to increase its lifespan
Lithium-based Batteries are not supposed to constantly sit a maximum charge. This damages them and reduces their lifespan. This is why some people take the battery out when using the laptop plugged ...
3
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1answer
1k views
How to turn off screen (DPMS) together with locking session in KDE?
First of all, I'm aware a similar question for GNOME is asked here: "Switch off laptop backlight when locking screen".
Objective
I would like to turn off my screen on locking the session for power ...
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0answers
132 views
HP311 laptop fails to Suspend nor Hibernate on Lid Close
Machine->
HP311 NetBook
Dual Booting Windows 7 and 12.04
Problem->
Under System Settings - Power, I have attempted to set:
When the lid is closed:
On Battery -> Hibernate
When Plugged in -> Suspend
...
1
vote
1answer
436 views
Why can't I hibernate my Ubuntu 12.04? [duplicate]
Possible Duplicate:
How to enable hibernation in 12.04?
I use Ubuntu 12.04 and don't have the hibernate button anywhere. Isn't there any way by which I can set up the hibernate button ...
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0answers
70 views
Laptop battery fails to change unless power level very low, and then dicharges quickly
I've had my laptop for about 5-6 weeks. Its a DELL Alienware M15x and I have never replaced the battery,such as http://www.pcbatteria.com/dell-alienware-m15x-series.html.
The past 3 weeks or so the ...
1
vote
1answer
449 views
How to add “shutdown” to the list of “when the lid is closed” in power settings? [duplicate]
Possible Duplicate:
How do I modify the power options?
I'd like to shutdown my laptop by closing the lid; but in Power Settings there's no option to do that.
Is there any way to add ...
0
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0answers
23 views
Ubuntu can't shut down correctly [duplicate]
Possible Duplicate:
Problem with ubuntu 12.04
I am new to Ubuntu. I've installed 12.04 version of Ubuntu. It works fine but sometimes when i shutdown my PC from Ubuntu and when I try to ...
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0answers
29 views
Overheat Error when shutdown from ubuntu os [duplicate]
Possible Duplicate:
HP Pavilion g6 1190sm laptop has overheat/hibernation/graphics issues
I am running Windows 7 OS and Ubuntu OS on the same machine my machine have the following ...
3
votes
1answer
537 views
How do make my screen brightness not change when i charge my laptop
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 ...
1
vote
1answer
1k views
How can I disable usb-autosuspend for a specific device?
This is related to the issue discussed in this question.
Summary: the mouse freezes when operating on battery since it is autosuspended after a certain time and needs more time to wake up.
Disabling ...
0
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1answer
106 views
Removing AC power when laptop lid is closed doesn't suspend
While the laptop lid is closed, when I remove external power, the laptop does not suspend so i have to open the lid and close to make it suspend.
When the laptop lid is open, then I remove power, ...
0
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0answers
94 views
Acer randomly shuts down
I just bought an Acer Aspire One 756 in Romania with Ubuntu pre-installed, and i choose to reinstall ubuntu for english language and my correct keyboard layout. but now it randomly shuts down.
I ...
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0answers
11 views
How mich W on myPSU should I have for my graphic card? [closed]
Will my 1yr old 500w PSU be adequate for the XFX Radeon HD 7950 and a AMD Phenom x4 @ 3,4GHz?
4
votes
1answer
133 views
Limiting what resumes computer from suspend
I'm having a ton of trouble getting Suspend to work with my laptop. I want to start using Ubuntu but this is a pretty important aspect since I take my laptop with me everywhere. Anyways, I wanted to ...
3
votes
2answers
190 views
Which one consume less battery in Ubuntu (generally Linux) Ethernet cable or Wireless?
I am wondering when i want to connect to network, it is better use my wireless adapter or using cable (ethernet adapter), Which one consume less battery?
Sometimes i saw that my battery life was more ...
3
votes
1answer
189 views
How do I detect when my system wakes up from suspend via DBus or similar in a python app?
In a background Python script I need to detect, when the system just woke up from suspend. What is a good way that does not rely on a root script but rather on python modules such as DBus?
I'm new to ...
1
vote
2answers
956 views
reduce Screen brightness in battery mode automatically
KDE and XFCE4 has a program to adjust the screen brightness automatically in battery mode to a preset value.
How can i set the same with Unity ( or Gnome3 )?
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0answers
589 views
Lowering GPU temperature on Radeon 6850 with open source driver
I read and tried this and it doesn't work for me!
when I type
echo "mid" > /sys/class/drm/card0/device/power_profile
I see what this value really changed (needs the chmod was applied before, ...
4
votes
1answer
351 views
Is there a program that can adjust display brightness according to battery percentage?
When i work in Kubuntu, KDE power management has a section that lets you automatically adjust display brightness according to battery percentage.
I want to know if there is a tool like that in Ubuntu ...
0
votes
1answer
287 views
Can i install “jupiter-support-eee” package on non eee laptop?
I have installed "Jupiter" on my Sony VAIO VPCZ2 laptop. it is very useful for me. I want to know what is the functionality of "jupiter-support-eee" package? is it only for eee netbook? can i install ...
1
vote
2answers
129 views
Where can I locate the file that handles power configurations and HDD parameters?
I'm trying to compare the differences between how power management is handled on battery and when plugged in. As a result I want to look at the config files for the two instances. Thanks in advance.
2
votes
2answers
692 views
What is the command for sleep/hibernate? [duplicate]
Possible Duplicate:
How can I suspend/hibernate from command line?
I have an Acre Aspire One and this netbook does not have a sleep function on the key board and with the removal of the ...
0
votes
0answers
15 views
Freezing after suspense [duplicate]
Possible Duplicate:
There's an issue with an Alpha/Beta Release of Ubuntu, what should I do?
I have Dell D630 laptop with almost fresh Ubuntu 12.10.
Default power settings say that ...
2
votes
0answers
105 views
Getting the external hard-drive faster into standby
Currently, my external hard-drive is going into standby after 15 minutes of inactivity. How can I reduce this period to e.g. 5 minutes?
Using Ubuntu 12.04 64-bit with Gnome Shell.
Thanks in advance!
...
0
votes
2answers
403 views
Is there any equivalent for Jupiter for Kubuntu?
I am looking for a software like Jupiter for my Kubuntu 12.04 to reduce my battery usage.
I want to know, Is there any equivalent for Jupiter for Kubuntu ? or how can i run Jupiter on Kubuntu?
...
1
vote
2answers
1k views
Unity won't suspend on inactivity
Running 12.04. I can manually suspend the system and wake it up again, but I can't get it to suspend on inactivity automatically.
I have it set to "Suspend when inactive for" 10 minutes in ...
1
vote
1answer
267 views
How to configure an Ubuntu virtual server and VMWare ESXi5 the way VMWare would be able to shut it down properly?
I run an Ubuntu 12.04 server as a virtual machine on a VMWare ESXi 5 server.
I've configured VMWare to shut the quest machines down the sane way (with an ACPI (if I understand it righ) shutdown ...
1
vote
1answer
134 views
Automatic Power On After Suspend
With every laptop I've had which had Ubuntu installed on it, first my Acer Aspire One and then my Dell Inspiron 15R, when I close it, it goes into suspend mode. When I open it, it attempts to power ...
3
votes
1answer
421 views
How do I make brightness settings persist across rebooting?
I'm using 12.04 with up to date packages running on a Dell Inspiron N4030 laptop with an ATI Radeon HD 5400 graphics card. I'm using the new Catalyst 12.6 graphics driver (this version already fixed ...
1
vote
1answer
3k views
USB hub not working properly Ubuntu 12.04
USB hub acting strange on Ubuntu 12.04 LTS.
On Windows all devices are working properly, but on Ubuntu there are several issues, so it is not hardware issue.
HDD is not recognised, unless it is the ...
1
vote
0answers
426 views
Shutdown button not working [closed]
I have 12.04 installed on my laptop. It was working perfectly until yesterday. Since then, no matter whether I choose restart shutdown or suspend option from GUI, my computer suspends. Please give ...
1
vote
0answers
122 views
Is There A Way To Measure Total Battery Discharge Time?
Can this be done with multiple sessions even if over a matter of days? This function does not appear to be available in XFCE Power Manager. If you have not already guessed, this question regards ...
7
votes
3answers
290 views
Hard-drive fails to boot if suspend was activated prior to restarting. Booting a live USB/CD fixes the issue (temporarily)
I am running 12.04 64-bit and am dual booting with Win7, for full disclosure, although I suspect that has nothing to do with my problem.
The boot-loader(GRUB) fails to load often and I will be ...
1
vote
1answer
147 views
My Lenovo W500 resumes from suspend prematurely
In both Ubuntu 10.04 and 12.04, a perfectly happy sleeping laptop is woken when moved. Either the HD-shock detection, the trackpad or a sloppy key will wake it when the lid is closed.
To test this I ...
0
votes
0answers
264 views
When the wireless connection is active, Ubuntu 12.04 does not restart or turn off
I performed a clean installation of Ubuntu 12.04 (on a laptop with Intel Core2 Duo CPU T7500 @ 2.20GHz and 2 GB RAM), overwriting the previous version. During the installation I decided to install ...
1
vote
3answers
990 views
Why does battery power drain quicker in Ubuntu compared to WIndows in Dell Inspiron? [duplicate]
Possible Duplicate:
Why does my computer get less battery life with Ubuntu compared to Windows?
When I used Windows 7 with Dell Inspiron, I got a battery life of 2 hours. But ever since I ...
0
votes
1answer
519 views
Extremely short battery life
In Windows, my battery lasts several hours. In Ubuntu 12.04, it's dead before an hour and a half.
I've installed http://linrunner.de/en/tlp/docs/tlp-linux-advanced-power-management.html but it has ...
1
vote
2answers
1k views
Battery not charging beyong a certain percentage
After checking two HP Laptops, one relatively new, only 2 months old and the battery is less than a week old. The other one is about a year old. both have the same issue. The laptop's battery charges ...
2
votes
1answer
382 views
Will computer being shut down due to power failure affect my system files, or speed in any way? [duplicate]
Possible Duplicate:
How resilient is Ubuntu to repeated “power-off” shutdowns?
I've asked before as well but need to confirm again, in my country there are a lot of electricity ...
0
votes
0answers
128 views
Ubuntu Hangs after Disk Goes to Sleep
I installed Ubuntu 12.04 Precise onto a Western Digital 500GB My Passport connected to my laptop through a USB 2.0 connection. (My computer's BIOS supports booting from USB.) If I leave the computer ...
0
votes
1answer
409 views
Will Not Shut Down
My Dell Inspiron 1720 Laptop with 12.04 with latest updates will not shut down when commanded off.
After each upgrade it will probably turn off once, the next time it is commanded off, it will shut ...
1
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0answers
198 views
Ubuntu won't suspend automatically any more [duplicate]
Possible Duplicate:
Unity won't suspend on inactivity
In the last month or so, Ubuntu (12.04) has stopped sleeping automatically. I've gone to System Settings > Power, and verified (and ...
0
votes
1answer
311 views
Can't find “/sys/devices/system/cpu/sched_mc_power_savings”
I'm currently working on Ubuntu 12.04 x64. A lot of manuals about power saving in Linux tells about using parameters /sys/devices/system/cpu/sched_mc_power_savings and ...
23
votes
1answer
9k views
Is “laptop-mode-tools” still relevant for 12.04 and the 3.x kernels?
I'm using Ubuntu 12.04 x64 and trying to choose power management software. Laptop-mode-tools have a lot of features, but the only reason why I'm worry about is that it's manual and config files are ...
18
votes
2answers
5k views
How to prevent my screen from dimming 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 ...
0
votes
0answers
78 views
Best UPS for Ubuntu server [duplicate]
Possible Duplicate:
UPS Compatibility with Ubuntu Server
I am on the market for an UPS which I want to connect to my network server.
On contacting an APC reseller, I was suggested APC ...
