Questions related to power management, particularly power saving measures.
2
votes
1answer
63 views
Getting powernap's IOMonitor to work with postgresql
I have a 12.04 box running postgresql 9.1.8-0ubuntu12.04, which serves a Java webapp (an Atlassian Confluence wiki). I'm trying to take advantage of powernap's IOMonitor feature. However, if I ...
2
votes
1answer
94 views
How to prevent CPU governor from changing automatically on laptop power?
I noticed when I plug-in or unplug my laptop's AC adapter, the CPU scaling governor changes to ondemand.
Because my laptop gets fairly hot, and I do nothing intensive on it, I prefer powersave at all ...
1
vote
0answers
28 views
after disabling dpms, how to keep dpms disabled after resume from suspend?
Ubuntu 12.10 quantal: On login, I run "xset -dpms s 0 0 s off". This works great until I suspend and resume. For some reason, dpms is re-enabled after resume. Is there an easy way to completely ...
0
votes
0answers
50 views
NIC does not stay on after shutdown (WOL)
I have been trying to enable WOL but no luck so far.. i think the problem is that when i shutdown my laptop, the NIC also shuts down (with AC power plugged in at all time). The light on the NIC does ...
0
votes
0answers
92 views
Battery design capacity lower than actual
Hi i have been having some problems with battery.
It is 48 Wh battery for Lenovo Ideapad and ubuntu is still telling me it design capacity is 38 Wh and also i doesnt charge it more than this value.
...
0
votes
0answers
95 views
What tool to use to log battery status in Ubuntu 12.10
What daemon-like tool use to log battery status (to get real time of work on battery) in Ubuntu 12.10 Quantal Quetzal?
I have tried to use battery-stats-collector but it doesn't work: ...
1
vote
1answer
104 views
Strange behavior with ssh on Ubuntu 12.04 server
Recently I installed Ubuntu server 12.04 on my computer at home with ssh support. I'm using WiFi instead of cable connection for this server. Everything works fine except the fact that for some ...
2
votes
0answers
158 views
Disable HDMI sound out, for decrease power consumption
I have Ubuntu 12.04 on my laptop
I'm looking for a way to decrease power consumption.
This is output of powertop command
Power est. Usage Events/s Category Description
1.30 W ...
0
votes
2answers
111 views
Poor battery life with Intel i7
I have an Asus K55VD laptop (Intel i7-3610QM, Intel HD-4000), and have noticed poor battery life when using Ubuntu: ~3hrs. This runtime is with the screen at minimum brightness, the processor scaled ...
0
votes
0answers
41 views
Screen shutting off when power settings are NOT set to make it turn off
I am running Ubuntu 12.10 on an HP Pavilion dv9000 with the MATE DE. For some reason my screen keeps going to sleep (going blank) after 10 minutes of being idle, but I have the screen saver turned ...
0
votes
1answer
221 views
Power Management Suspend/hibernate/hybrid suspend problem Ubuntu 12.10 64 bit
Hi I am using a Dell inspiron 7520, I've got a i7 2.1ghz CPU with an AMD Radeon HD 7730m working on switchable graphic with an intel HD 4000.
I am using the computer on Linux only so there's no ...
0
votes
1answer
65 views
What does it mean that my GPU is running 0 ops per second
I am currently running an Ubuntu 12.04 laptop built by System76. I fired up powertop, which I do frequently because my battery life on this machine is attrocious, and I noticed a line at the top ...
0
votes
1answer
84 views
Inspiron 7520 Power Management 12.10 after sleep mode
I use an inspiron 7520; i7 3rd generation, AMD Radeon HD 7730m w/ intel 4000hd
I have noticed that my batttery life radically change when I awake my computer from sleep. When I just boot yp my ...
3
votes
1answer
73 views
Is the pm-suspend command equivalent to the GUI suspend option?
I noticed the pm-suspend command and was wondering whether this is the same as selecting the sleep option on the main menu.
If not, how does it differ?
0
votes
0answers
315 views
New battery installed but Ubuntu only recognizes 2.5 hours of life
I'm having an issue in which I have installed a new battery that will not charge to it's full capacity. I'm looking for a manner to change some setting in which Ubuntu will allow a full charge. After ...
2
votes
1answer
106 views
How to prevent battery charging unless dips below 95%? on an Asus U31SD-XH51
I have an Asus U31SD-XH51 laptop running latest Ubuntu 12.04 LTS and I want to know if there is a way to prevent the system from charging the battery unless its charged level dips below 95%?
This is ...
1
vote
0answers
210 views
System crash after update - cannot load lightdm
I've been running 12.10 for ~(two weeks) now and have had my fair share of trouble with it. Of course, this has thought me a great deal of lessons of using ubuntu, the command line and Linux in ...
0
votes
2answers
377 views
How can I increase battery life in Ubuntu?
I really like Ubuntu, and I want to work with it always instead of windows. But the problem I find is that the battery runs out very fast (< 2 hours) when I use Ubuntu. It would have been great if ...
0
votes
1answer
43 views
Xubuntu 12.10 disable Lower Power Beep
How do you disable the lower power beep within Xubuntu 12.10?
9
votes
2answers
497 views
Why does powertop still detect tunable settings on >12.04?
According to this Q&A laptop-mode-tools and powertop are not needed anymore with ubuntu 12.04 as the power savings are now included in the kernel.
So I decided to remove laptop-mode-tools from ...
2
votes
1answer
105 views
Shutdown when laptop lid closed
I want my laptop to shutdown when I close the laptop lid.
But in the power settings I can only choose between:
Suspend
Do nothing
Hibernate (Disabled)
Is there any way to configure it with more ...
0
votes
2answers
254 views
Loud fan and very hot pc
I know, that you don't like when someone ask same question as is answered but I try a lot of solutions and nothing helped...
I installed Ubuntu 12.10, everything is good but fan is very noise and ...
0
votes
0answers
47 views
What are the different power modes in xfce?
I use xubuntu on a small netbook. I want to conserve the maximum amount of battery. I have turned down the brightness, but what is the difference between 'normal' and 'presentation' power modes in the ...
0
votes
0answers
124 views
Battery charging/discharging state Ubuntu 12.04.2
My laptop show that i'm running on battery even when i'm connected to a power outlet. The charger is working fine. Double checked the charger on Windows and on another laptop of same model.
Looking ...
0
votes
0answers
29 views
Ubuntu slows Windows wireless when plugged in
We have a wireless LAN with an Ubuntu 12.04 laptop and a Windows 7 laptop connected. The Ubuntu laptop always gets download speeds of 19-20 Mbps and upload speeds of 1.92 Mbps. The Windows 7 laptop ...
0
votes
1answer
65 views
If not in charge monitor decrease brightness when not active [closed]
On my notebook I've installed Ubuntu 12.10. If not connected to the power supply after few seconds of inactivity the system will decrease the brightness. The problem is that as soon the computer is no ...
0
votes
1answer
62 views
Inefficient power management
I've got a HP Envy M6 1178ea notebook which has a battery life of about 6 hours when running on Windows 8. I recently installed Ubuntu 12.10 (quantal) 64-bit and the indicator shows a battery life of ...
1
vote
1answer
92 views
Integrated webcam on a Dell V131 drains the battery when not used. How to turn it off?
After using the integrated webcam, it never fully turns off and keeps hogging the battery. From powertop:
The battery reports a discharge rate of 22.6 W
The estimated remaining time is 0 hours, 41 ...
0
votes
0answers
45 views
I want to enable the “power beep”
I have recently migrated to Ubuntu from Windows, and I need the "power beep", that beep that plays when the power is plugged or unplugged. I doesn't seem to be here, and I rely on it to know if I am ...
1
vote
1answer
88 views
KDE Power Management not turning Screen Off
This seems to be the opposite problem most people ask with KDE PM. I have a laptop running Ubuntu 12.10 and KDE 4.10. After the last couple of updates (I'm not sure which one), my screen stopped ...
0
votes
0answers
25 views
Low battery life on Toshiba laptop [duplicate]
I have ubuntu 12.1 installed on a toshiba laptop as well as win7. When running ubuntu I get about half the battery life and the fans are always going full blast pumping out a ton of heat. In win7 it ...
3
votes
1answer
93 views
Creating scripts
I'm following advice from LessWatts to lower battery drain with the following commands:
mount -o remount,noatime /
hdparm -B 1 -S 12 /dev/sda
echo 3000 > /proc/sys/vm/dirty_writeback_centisecs
...
0
votes
0answers
8 views
Cannot configure power button “powerbtn.sh” on Ubuntu 11.10 [duplicate]
Iam using Ubuntu 11.10, I am trying to get rid of the Dialogue(5 Power options) that opens whenever you press the Power Button. But I have tried all that I could find on the net... and none seems to ...
0
votes
0answers
44 views
How do I stop the screen going off when viewing a slideshow in the image viewer?
There is a setting to dim the screen when the computer is idle for a certain duration (link). What is the best way to prevent this behaviour when I am viewing a slideshow of images, using gnome image ...
2
votes
1answer
78 views
Xfce power manager does not follow GUI setting not to shut down the display
I want my laptop not to turn off monitor when on AC power under any circumstance.
And yet it becomes dark after a while - 10 minutes I guess.
I think the Xfce GUI settings involved are these here:
...
2
votes
0answers
121 views
“power off and on” specifc usb port in Ubuntu 12.04
I am trying to power off and power on usb port in Ubuntu 12.04 without success.
I tried the steps listed below:
echo "0" > "/sys/bus/usb/devices/$port/power/autosuspend"
echo "auto" > ...
3
votes
1answer
26 views
powertop color codes
I am running powertop in Ubuntu 10.04. It shows a horizontal bar near the top that displays something like:
Wakeups-from-idle per second : 723.6 interval: 10.0s
My question is, why is the ...
0
votes
0answers
30 views
HP G6 laptop will not suspend when on battery
I have an HP G6 laptop with 12.10 installed. When running on Battery power it never suspends and the screen never dims. When the AC adapter is plugged in it will dim and eventually suspend just fine. ...
0
votes
0answers
80 views
Wireless not available after installing laptop-mode tools on my Toshiba Satellite L650-14E
After installing Laptop mode tools on my computer with Ubuntu 12.10 my wireless adapter has become disabled. Among available connections wireless connection is not appearing at all.
I have tried a ...
1
vote
1answer
162 views
Suspend doesn't happen when laptop lid closes - awesome wm
I've installed awesome as my windows manager.
However, it doesn't seem to respect the power options from lightdm; if I'm at the login screen shutting the lid will trigger suspend.
Once I log into the ...
1
vote
0answers
102 views
selectively deactivate (power off) pcie slot?
the title basicly says what I'd like to do:
my machine has integrated HD4000 graphics and a more powerful PCIe card
HD4000 is enough for everyday use, PCIe should be used only for gaming with ...
1
vote
1answer
71 views
Ubuntu Battery/AC Management
I would like to know if having the AC plugged continues to charge the battery while being 100%.
I don't want my battery to wear out, and I don't want to have to remove it every time I plug the AC in. ...
0
votes
0answers
102 views
12.10 laptop freezes for a few seconds when unplugged [closed]
I'm running a 3-day-old 12.10 installation on an acer laptop. I started getting this problem a few weeks ago on my old installation where my laptop would just freeze up for a second whenever I ...
0
votes
0answers
82 views
Battery Symbol shows no charge when plugged in and charging
I have recently switched out windows for ubuntu 12.10. I am now having an issue where my computer is plugged in and charging and my computer light says it's charging, but the battery symbol at the top ...
0
votes
0answers
58 views
Boot without X, impact on battery?
I am not too happy with my laptop's battery life and my work consists mostly of text editing so I could do it from a command line.
I am considering booting to text mode, as explained in the accepted ...
1
vote
1answer
386 views
Battery life: 90 min on Acer ultrabook / 12.10
i usually work on my Acer M5-481TG with Windows 8 x64 and recently installed Ubuntu 12.10 (x64) alongside with it.
Unfortunately, the battery-life is roughly one and a half hour - which apparently is ...
2
votes
1answer
71 views
E: unable to locate power managment interface
I am very new to Ubuntu
I am running Ubuntu 12.04
I tried to install the power management interface
sudo apt-get install power management interface
and i get
E: unable to locate power ...
0
votes
0answers
96 views
High discharge rate, Ubuntu 13.4 gnome 3.6 [duplicate]
I have Dell Inspiron N5010 Core i5 with ATI Radeon 5xxx and 4 GB RAM
I have installed Ubuntu 12.10 with Windows 7 and updated to gnome 3.6 then updated to Ubuntu 13.4
And I'm using the default driver ...
0
votes
0answers
64 views
How can I find out whether my hard drives ever spin down?
I want to know whether, over the course of a typical week, my hard drives ever spin down. I'd like to know how often this happens, and at what times.
Where can I find this information, or how can I ...
5
votes
1answer
189 views
How can I find out the current drive spin-down time?
I'm interested in manually adjusting my hard drives' spin-down times with hdparm -S to make them quieter at night. The first thing I need to know is what their current spin-down times are, to use as a ...
