Questions related to power management, particularly power saving measures.

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0
votes
1answer
755 views

How to get Jupiter in Ubuntu Gnome [duplicate]

So I switched from ubuntu to gnomebuntu today, and proceeded to try and install all the apps that I had found invaluable with ubuntu. I have run into a road block with jupiter, and was wondering if ...
0
votes
1answer
1k views

How to switch off devices and ports for power saving in Lubuntu? [duplicate]

In Windows Vista I can switch off via power management: PCI Express Modem port Optical DVD drive Via network connection I disable: Blutooth How can I do similar in Lubuntu? Under Power Manager I ...
135
votes
4answers
119k views

Is there a power saving application similar to Jupiter?

I'm trying to install the Jupiter power settings app but, I read it is no longer compatible with the new kernel. Is there a similar program or a way to manage the power settings on 13.04?
2
votes
1answer
1k views

Turning off battery management on desktop

Just installed Ubuntu 12.04 on a Dell Optiplex GX280 desktop computer. When I hook up my bluetooth mouse and keyboard it seems to recognize their batteries as the actual battery of the computer. As if ...
3
votes
2answers
98 views

How do I find out if an external drive is in active use (being read/written to)?

I have some external drives connected to a power outlet. The outlet is USB switchable, i.e. I can run a program on my PC that physically disconnects the external drives from the power grid. I only use ...
0
votes
1answer
750 views

SSH login wakes spun-down storage drives

I'm running 12.04 on a home server/HTPC, and have several storage drives which spin down using values set in /etc/hdparm.conf. Sometimes, logging in via ssh causes some or all of the drives to wake ...
1
vote
1answer
1k views

About powering USB device on Linux: Android camera app recognizes USB camera but Ubuntu doesn't

On my notebook, I have a USB camera, 32-bit Ubuntu 10.04 running on SD Card and Android Jelly Bean on flash memory. Ubuntu doesn't recognize the camera (even the USB port), cause it doesn't offer any ...
0
votes
1answer
1k views

Ubuntu 12.10 is draining my battery really fast [duplicate]

I'm new to Ubuntu and I'm not a developer to know how to write codes. I downloaded it couple of days ago but it is killing my battery, it almost lasts an hour and couple of minutes while it holds for ...
3
votes
1answer
1k views

Increase the disk spindown timeout

When my laptop (running Ubuntu 12.04) is on battery, the disk powers off after a few seconds of inactivity — about 20s. I use lightdm to log in, and have some Gnome components running (I have ...
3
votes
1answer
277 views

Can my settings be customized automatically when I boot on battery power?

Is it possible to tweak settings if and only if the computer starts on battery power? Why? I usually work without battery, but when I use a battery I want it to last as long as possible. For that ...
1
vote
1answer
181 views

UPS beeping on mouse scroll or other events

I have this hardware problem, my UPS battery beeps a lot when using Ubuntu (not so much on windows), so I am thinking that it may be a interrupt problem or a power surge of some sort. The strange ...
1
vote
1answer
158 views

Is there a user-friendly setup to reduce performance and fan thresholds?

My Dell Vostro 4450 with Ubuntu 12.04 started heating (>95°C) when its on heavy load and charging battery (sometimes it freezes in this conditions). When on heavy load but using battery, it stabilize ...
4
votes
4answers
2k views

Much lower battery life on Ubuntu and laptop heating up badly

I have the following config laptop: System model: HP Pavilion g6 Notebook PC Processor: AMD A8-4500 APU with Radeon HD Graphics (Quadcore 1.9Ghz) Memory: 6Gb RAM Graphics:AMD Radeon HD 7640G+7600M ...
0
votes
2answers
2k views

How can one disable Wi-Fi power management when using Jupiter?

Background and Problem My laptop (Lenovo ThinkPad X131e 3372-2VU, running Ubuntu 12.04 LTS) freezes when Ubuntu tries to manage the wireless interface's power. I had to manually disable wireless ...
2
votes
1answer
453 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 ...
3
votes
1answer
866 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 ...
2
votes
1answer
88 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 ...
1
vote
1answer
540 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
1k 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
557 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
1answer
232 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
246 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
225 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?
3
votes
1answer
262 views

Mouse and touchpad freeze without power supply

I have a fresh installed Ubuntu 12.04 LTS on my HP ProBook. My external mouse and touchpad freeze in battery mode, but I can reinitialize them with Ctrl+Alt+1 and back to 7. As long as I move the ...
2
votes
1answer
823 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
votes
3answers
3k 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
99 views

Xubuntu 12.10 disable Lower Power Beep

How do you disable the lower power beep within Xubuntu 12.10?
15
votes
2answers
3k 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
3k 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 ...
1
vote
2answers
720 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
1answer
204 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 ...
2
votes
1answer
412 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 ...
1
vote
1answer
373 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 ...
3
votes
1answer
273 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 ...
1
vote
1answer
1k views

Power manager GUI settings (not to shut down the display) are not followed

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
369 views

“power off and on” specifc usb port [duplicate]

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
65 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 ...
2
votes
2answers
2k 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
1answer
766 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
109 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
1answer
342 views

Ubuntu 12.10 w/ Kernel 3.7.0.7 and Open Source Driver RESUME/BRIGHTNESS CONTROL

I am using an Inspiron 7520. I got a AMD Radeon HD 7730m running in switching with an Intel 4000 HD. I have updated my Open source drivers with xorg edgers and x-swat. I am running on the kernel 3.7 ...
1
vote
1answer
550 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
216 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 ...
7
votes
4answers
11k 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 ...
3
votes
0answers
200 views

How to tell if laptop was woken by rtc?

Say I set my laptop to wake every morning with rtcwake (e.g. echo $(date +%s 'tomorrow 08:00') > /sys/class/rtc/rtc0/wakealarm in a cron job or in /etc/pm/sleep.d/99-set-alarm.sh). Now, I'd like ...
4
votes
1answer
936 views

How do you prevent CPUs from being throttled when battery is taken out of Laptop (aka only on AC power)?

My laptop CPUs are throttled down to .8GHz instead of 2.5GHz whenever I am connected to AC only and not the battery. I tried using cpufreq-set and it allows me to set the speed when the battery is ...
10
votes
6answers
4k views

How can I disable backlight when I lock the screen?

When I lock screen, the display does turn black but the display isn't completely off. There is some light coming out of the display in screen lock mode but it get turned off when inactive for 10 ...
1
vote
0answers
135 views

Laptop refuses to power down or restart from top bar power icon

I am running Ubuntu 12.04 (32-bit) on a Dell Vostro 1700 laptop. When I click 'shut down' option on top bar far right button, it closes Ubuntu but won't shut down. It just goes to a low-power state, ...
2
votes
2answers
4k views

Disable USB keyboard wakeup

With the update from 11.04 to 12.04, my USB keyboard activity will wake Ubuntu from 'suspend'. I'd like to disable this. (My battery went dead due to some unexpected keyboard activity.) This didn't ...
4
votes
2answers
824 views

Suspend problems - Chromebook running 12.04.1 LTS

I've been running Ubuntu 12.04.1 LTS for a few days now on my Acer C7 Chromebook - and in general it's running great. However, I've noticed that when I try to suspend one of various things can ...