Questions related to power management, particularly power saving measures.
0
votes
1answer
167 views
How do you control how hybrid suspend works?
I would like hybrid suspend to act a certain way.
If I add the code
# Always use suspend_hybrid instead of suspend
if [ "$METHOD" = "suspend" ]; then
METHOD=suspend_hybrid
fi
PM_HIBERNATE_DELAY=XX
...
0
votes
1answer
112 views
Alarm clock from suspended mode
I want my laptop to wake up from suspended mode in the morning and alarm me to wake up using my mp3 file.
How do I do it?
I tried apmsleep, but it doesn't work cause my PC doesnt have "suspend to ...
1
vote
0answers
268 views
screen does not wake up after suspend/ brightness will not adjust
My computer is one of these:
http://www.newegg.com/Product/Product.aspx?Item=N82E16834230467
Asus Zenbook UX32A-DB51
Just bought it yesterday.
Set to "suspend" when I close the lid, but when I open it ...
1
vote
1answer
189 views
no power notifications with i3wm
I use Ubuntu 12.10, but changed to the i3 window manger. It works great, but I do not get the normal "low power" notification. Notify OSD works as expected (I tested it per notify-send).
How can I ...
2
votes
2answers
870 views
Stop/start battery charging through software?
If a laptop is powered on and connected to AC power, is there a way to issue a command that tells it not to charge the battery?
EDITED:
Perhaps charging of the battery may be stopped if there were a ...
1
vote
0answers
159 views
Home Server Power Consumption Reduction
I am running Ubuntu Server 12.04 on an HP Mini 311. It has an Atom 270, 3GB ram, NVIDIA ION graphics. When running windows 7 with the screen off and no programs running the power consumtion from the ...
0
votes
1answer
159 views
Why does Ubuntu (and other ubuntu based distros like lubuntu and linux mint) randomly shutdown on my laptop?
I have a lenovo g555 laptop and whenever I try and boot a ubuntu based distro off a usb, it randomly shuts off my PC (Not like a normal shutdown with shutdown loading screen but a like a sudden hard ...
8
votes
2answers
9k views
Ubuntu 12.10 “Turn screen off when inactive for: Never” still turns off
After a fresh install of Ubuntu 12.10, my screen still goes off after about ten minutes. I've been to the Brightness and Lock control panel. The Turn screen off when inactive for: setting is set for ...
1
vote
2answers
326 views
Bluetooth mouse disconnects but only when on battery
I use a Lenovo Thinkpad Bluetooth Laser Mouse with my Thinkpad x130e and Quantal. It works without problems as long as the notebook is on AC-Power. When it runs on battery the mouse works for some ...
1
vote
2answers
209 views
How reliable is the battery data in ubuntu the power statistics?
Right now the power statistics show that:
Energy when full: 25.5 Wh
Energy (design): 93.2 Wh
And indeed the battery doesn't seem to be lasting as long as it used too.
My question:
Is this data ...
1
vote
1answer
215 views
Toshiba “eco mode” equivalent
I have a Toshiba Satellite R830 dual-boot Ubuntu 12.10 and Windows 7.
On Windows, when I turn "eco mode" on, the fan is much more silent and temperatures are considerably lower. On Ubuntu, eco mode ...
2
votes
1answer
2k views
Screen turns off after inactivity
My screen turns off if I'm inactive for some time, even though I disabled the setting. It happens on battery as well as on AC power.
My Brightness and Lock Settings:
My Power Settings:
Does ...
3
votes
4answers
831 views
Brightness control doesn't seem to work on a Toshiba Satellite M115 laptop
I have Ubuntu 12.04 LTS on a Toshiba Satellite M115 laptop. The brightness control doesn't seem to work with the "brightness and lock" setting or fn+f6 and fn+f7 (which usually works in Windows). How ...
1
vote
1answer
1k views
Power & Sleep Management
I'm running 12.10 with xmonad.
Trying to ensure that the right things happen when I close laptop lid, etc. I see Internet search results for similar issues that mostly point towards ...
0
votes
0answers
277 views
How to disable KDE suspend/screen lock notifications?
Every time I close the lid on my laptop it plays a sound. Similarly, I'm getting a notification that the screen has been locked when I wake it up again. I've looked under KDE power management system ...
2
votes
0answers
309 views
12.10 shutdown/power-up issue
I have just upgraded to 12.10 on a Shuttle XPC which I use mainly for XBMC and have a problem with shut down/power up. When I shut down from within XBMC the box seems to shut down correctly, but it ...
0
votes
1answer
230 views
find out which process wakes my hard drive from sleep state
I have an external drive connected to my computer, I want this drive to be in sleep mode unless i'm executing some backup tool.
For some reason, after 14 minutes I think, the hard drive always wakes ...
4
votes
1answer
754 views
Modify actions when battery is critically low?
I am running Ubuntu (not Xubuntu) and am using Xfce4 on my laptop. When my laptop battery is critically low, Ubuntu/Xfce4 performs some action (perhaps hibernate?) which causes my laptop to shut down.
...
0
votes
0answers
358 views
How to control of battery charging/discharging limits?
I'm running HP 530 laptop and Ubuntu 10.04. My old battery is died some times ago, so I have got the new one.
I'd like to get possibility to change the limits when the charger starts to charge ...
0
votes
1answer
1k views
Battery on Ubuntu 12.10 is less compared to win7! [duplicate]
I installed ubuntu 12.10 alongside win7 ultimate on my lenovo ultrabook U410, but the problem is I get 6 hours with win7 while only 3.30 hours on Ubuntu. I installed PowerTop but It does not provide ...
1
vote
1answer
231 views
Reboot only shuts down and doesn't actually boot again
I'm running a fresh install of Ubuntu 12.04 Server on an abmx rack mount server. When I attempt to reboot with sudo shutdown -r now, the machine just shuts down and doesn't come back up without me ...
1
vote
2answers
760 views
Set Idle Time in Ubuntu 12.04 Server
I recently installed Ubuntu 12.04 Server and am looking for away for get the server to suspend after an idle time. When using the desktop version I could use the Gnome powersaving tool to specify the ...
5
votes
3answers
6k views
Poor battery life in Ubuntu 12.10 on Toshiba p755-s5215, how can i manage background applications?
I have a dual-booted laptop, where windows gives a good 3.5 hours on battery, while on Ubuntu 12.10 my laptops runs only for 2 hours.
I heard about powertop and laptop-tools, but after installing ...
0
votes
1answer
720 views
High power consumption on latest versions of Linux distributions
I have a Sony Vaio E series and I installed both Ubuntu 12.04 and 12.10. In every case, my battery life is reduced of almost a half with respect to Windows 7. The power consumption with no program ...
0
votes
0answers
72 views
How do you force the power management (battery icon) to stay in the top bar?
Changing the power options doesn't seem to work - No matter what I change the option to, the power management refuses to show in the top bar.
Using Ubuntu 12.04.1 LTS, upgraded from 11.10.
Is ...
1
vote
2answers
679 views
Brightness resets to maximum after every reboot. Need some help [duplicate]
I have a UX31-E Asus Zenbook running 12.04 until today when I tried 12.10. I've experienced this issue on both versions of ubuntu.
I have tried turning the brightness down manually through the ...
2
votes
1answer
539 views
Battery is drained too quickly
I'm getting really low battery life under ubuntu, not even close to windows. I tried powertop, and I saw that my laptop is consuming in idle nearly 20 watts (a bit more).
I tried to install ...
2
votes
2answers
578 views
ubuntu 12.04: Why my laptop is consuming more power than 11.10?
I had 11.10 X86 on my Asus laptop (sandybridge, Nvidia 520M). I had 8 hours' battery life with Bumblebee and Jupiter. Average battery discharge rate was around 10w.
Later I changed, not upgraded, to ...
0
votes
0answers
133 views
Laptop will not boot on battery power
I cannot start my Toshiba Qosmio G40 without plugging in the power adaptor. After booting Ubuntu, i can unplug the power adaptor and run on battery. I am using Ubuntu 12.04lts, i had the same problem ...
2
votes
0answers
355 views
Suspend on power button when session is locked
It is possible to configure Ubuntu so that pressing the power button causes an immediate suspend (see here, for example). That configuration does not work, however, if the session is locked.
Is it ...
0
votes
0answers
95 views
files power_profile and power_method missing on ubuntu 12.04 after clean isntall
OK here is the problem,I am using gnome-shell, ubuntu 12.04, kernel 3.2.0-32-generic-pae and the proprietary drivers for my ati card (Installed via "additional drivers") , the laptops is a hp 4310s ...
0
votes
1answer
939 views
Power Savings and Performance Modes on Ubuntu System
This might be the only thing I miss from windows.
There is no way to tell the system to run in high performance mode or in power saver mode.
May be this feature which is already there and I am ...
0
votes
0answers
112 views
Can't boot laptop on battery
I can't boot my laptop to Ubuntu when not plugged into a power socket. If I do so, it loads for a bit, until my cursor appears (and I can freely move it around) and says:
[code]CPU#: Package power ...
1
vote
1answer
526 views
Reducing power consumption of Intel chipset
I've just installed Xubuntu on my Samsung 530U (SSD version) and everything works find, but the battery life is dramatically lower comparing to Win7. Full battery is able to work about ten hours ...
0
votes
1answer
1k views
ACPI _OSC control
I've noticed an error from dmesg output that ubuntu canot enable ASPM:
[ 0.192722] pci0000:00: ACPI _OSC support notification failed, disabling PCIe ASPM
[ 0.192728] pci0000:00: Unable to ...
1
vote
0answers
58 views
Is text-only mode a saving or a problem for battery savings?
A friend is flying to the US from Europe and asked me a very thought-provoking question, which I am not remotely able to answer with substance so I am asking it here:
How to absolutely maximise ...
1
vote
0answers
32 views
Temporary disable suspend when x command is running?
How do you temporarily disable suspend functionality when a certain command is running? This request is similar to caffeine but caffeine does not offer this functionality.
0
votes
0answers
14 views
Is Ubuntu everything ok on acer v5-431 [duplicate]
Possible Duplicate:
Screen Brightness not adjustable for Acer Aspire S3
I want to use Ubuntu , but I can't control screen back-light and my laptop power is spent more than running window 7 ...
0
votes
0answers
120 views
Enable Mesa Gallium3D power saving [duplicate]
I have an Ati Radeon HD 3650 AGP (Ubuntu 12.10) but it heats too much because power saving is disabled.
I tried:
nastys@NEWNS:~$ echo dynpm > /sys/class/drm/card0/device/power_method
bash: ...
0
votes
0answers
25 views
Can I set the default behaviour of power button to suspend the machine on 12.04? [duplicate]
Possible Duplicate:
How do I modify the power options?
Whenever you press the power button on Ubuntu 12.04 a shutdown dialog appears, but I would like it to simply suspend the machine ...
0
votes
0answers
28 views
Repeated power error, can get to log on screen
I've used Ubuntu for 2 weeks until this error popped up. It goes like this:
failed to set up /tmp/.X11-unix
/etc/acpi/power.sh: 11: etc/acpi/power.sh: pm-power : not found
It keeps repeating this. ...
3
votes
0answers
247 views
How do I prevent immediate wake up from suspend (version II)?
This question covers one reason a computer might immediately wake after suspend:
How do I prevent immediate wake up from suspend?
I seem to have a different one. After a recent security patch update ...
1
vote
0answers
160 views
Oops! it's a desktop not a laptop
My mother has a Desktop PC, I accidentally installed Ubuntu 11.0 Laptop on it, now the power settings are set up for a laptop.
Is there any way I can change this?
0
votes
1answer
349 views
Restore default power settings on Ubuntu 12.04
I've noticed that Ubuntu 12.04 restarts instead of hibernating or when the battery power is below the critical level, and then continues restarting until the battery runs out, and power is lost. Is ...
2
votes
4answers
448 views
How to reduce power consumption in ubuntu?
Why does Ubuntu use more power than Windows? Which is the best energy manager?
2
votes
1answer
413 views
Won't Hibernate when Battery Critical
Ubuntu 12.04 64bit refuses to hibernate when battery is critically low. Instead it does a complete shutdown which is unnecessary and can cause loss of data.
I have enabled Hibernate (pm-hibernate) ...
0
votes
0answers
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
votes
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
447 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 ...
