Questions related to power management, particularly power saving measures.

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5
votes
2answers
1k views

Ubuntu 12.04 LTS fails to recognize my laptop as laptop [closed]

This is probably going to sound like a rookie question, but I have never ever experienced such issue. I had Ubuntu 11.10 without Unity installed on my old laptop Thinkpad Z60m. Few days ago, I got ...
13
votes
1answer
10k views

How can I workaround the XFCE4 power manager being broken?

I just did a clean install of 12.04 on my netbook, then installed xubuntu-desktop. (The reason for that is the showstopper bugs in 11.10 Unity -- like menus not working, or the launch bar capturing ...
1
vote
0answers
580 views

Is wake up from standby possible via script or schedule? [duplicate]

Is it possible to cause Ubuntu to resume from standby or sleep mode to run a scheduled task like at job/crontab? (hibernation seems to be ruled out in another question) Can a script be written that: ...
0
votes
2answers
755 views

Screen goes blank/corrupted/garbled when pressed brightness buttons on dell inspiron 14r in 13.04

When i press brightness key little faster the screen turns black(when graphic driver is not installed) or corrupted(when ati driver is used) and i have to forcefully restart again.This happens even ...
1
vote
1answer
1k views

How to permanently switch of KDE Power Management warning about battery recall

I have Kubuntu 12.04 installed. Each time I boot I receive a notification that the battery I am using has been recalled. This is not actually the case, as the recall doesn't apply to T61 model of ...
0
votes
3answers
1k views

Toshiba Satellite l755 overheats

I really want to use the new unity and the integration options, i'm running a toshiba satellite l755-s5349, but, it keeps my laptop on a very high temperature, with very high peaks specially when i ...
3
votes
1answer
919 views

pm-powersave is called on each boot

On my Ubuntu (server) installation I'm tweaking some power parameters. But most of these parameters such as /sys/class/scsi_host/host0/link_power_management_policy keep getting reset. I have inspected ...
3
votes
1answer
1k views

Battery time decreased on an HP ProBook 4530s

I have HP ProBook 4530s. In Windows 7 after installing all HP drivers the 6-Cell battery works perfectly for 2+ hours but in Ubuntu 11.10 and now in 12.04 the battery time is not sufficient. It works ...
0
votes
1answer
2k views

Fan working non-stop on a Dell Inspiron 5110

First of all i'm new at ubuntu. I've only tried 11.10 before 12.04. Since then my notebook's(Dell Insprion 5110) fan was working non-stop. And also battery lasts in 2 hours. So i made a research. Some ...
0
votes
1answer
784 views

Poor battery life on an Asus U45J

I have a question about ubuntu working on my laptop. After I installed ubuntu 11.10 on my laptop I noticed that my laptop battery life time reduced to 2.5h when it is full, while its life time in ...
0
votes
1answer
499 views

Am I using all the power of my PC in Ubuntu? How can I find this out?

My computer has a CPU with 4 cores and 4GB RAM. What I want is to find out, if I am using all the available power that my PC offers to me? How can I do this?
2
votes
3answers
3k views

Suspend and resume not working on an HP dv7 [closed]

this one is driving me nuts. My HP dv7 laptop isn't resuming from suspend and hybernate. On suspend - resume it leaves me with a black screen. On hibernate it succesfully loads the images and then it ...
1
vote
2answers
7k views

NVidia Doesn't Show Up in Additional Driver + Power Regression Issue in Ubuntu 12.04

Thank you for reading. I am still having issue with power regression on my Asus K53SV after doing a fresh install of Ubuntu 12.04 (I have this issue with Ubuntu 11.10 as well). Thus a helpful guy told ...
40
votes
4answers
108k views

Shutdown does not power off computer

I recently upgraded from Ubuntu 11.10 to 12.04. If it makes any difference, my system is a Dell Inspiron 1520. I encounter a problem whenever I shutdown or restart; it kills all running processes ...
0
votes
1answer
1k views

Ubuntu 11.10 not suspending automatically

New: After digging around a bit more, I found out the problem is much more that the system is not suspending on its own, although suspending manually (shutdown->suspend) works well. I used the suspend ...
2
votes
0answers
1k views

Battery power indicator bug and high power consumption on 12.04 [duplicate]

Possible Duplicate: Battery drain on ubuntu is fast I have a Samsung NP530U3B-A01: - intel core i5 2467M - 4gb ram - intel hd 3000 - 500gb hard drive It's dual boot with windows 7. ...
2
votes
2answers
1k views

How to fix high power consumption on a hybrid-graphics laptop

I have a hybrid Radeon 6600M/Intel laptop, and I've installed the Ubuntu beta 2, hoping that I'd get a better battery life but I still seem to be getting high power consumption. With radeon ...
-1
votes
1answer
813 views

Why Won't my computer turn on? [closed]

Yes, as dumb of a question as it is. This is the only place I knew of to get a fast answer. Pressing the power button does nothing. Power cord connected and circuit is getting power. If I flip the ...
3
votes
0answers
5k views

Screen stays black after Waking Up from Suspend [closed]

I installed Ubuntu 12.04 on HP DM4 Beats Edition and the suspend and wake up were working perfectly, but after an update I can't see 'Caps Lock' light, Wireless light etc, the fan is running but the ...
7
votes
3answers
4k views

Has the Ubuntu overheating problem for Sony Vaio solved? [closed]

I used Sony Vaio VPCEA23en with graphics card ATI Radeon HD 5145 and have been using Ubuntu 11.10 and recently upgraded to 12.04 beta, however the problem of overheating (60-70) still persists. I have ...
3
votes
6answers
2k views

Battery life low on notebook using ubuntu 11.10 vs. windows 7

Im using a brand new Dell XPS notebook (bought mar 2012) which has 4.5 hrs battery life using a 6 cell battery-when i use windows 7. The machine uses an Intel core 17 2670qm processor, and a 64 bit ...
1
vote
1answer
180 views

How can I assign a command to a key?

I want to assign a special command to be executed when I press the F15 keyboard on a MAC keyboard under Ubuntu. This is the key on top of the PgUp key on the aluminium keyboard for Macs. I use that ...
1
vote
2answers
176 views

Why does waking from hibernate take nearly ten minutes on a Dell XPS 15 L502x laptop?

Im running 11.10 64bit on a Dell XPS 15 L502x laptop. It uses an i5 proc and has 16Gb ram. Whenever I close the lid on the laptop I have it set to hibernate as I want to continue whatever I was ...
0
votes
3answers
556 views

Precise Beta 2: Screen won't power down

I am running Precise beta 2 on a Dell Latitude E6410 with nVidia graphics. I have set up the power management to turn the screen off after 10 mins of inactivity. Instead of it turning off, it simply ...
0
votes
2answers
449 views

Laptop goes off (not shutdown), which log file should i check?

I have problem with my Lenovo x121e - goes off and i can't start it immediately again. I must wait 3-5 min and then works again. CPU Temperature was okay, about 65°, HDD Temp too - 37°. Badblocks ...
25
votes
3answers
10k views

How do I disable the sleep button on my keyboard?

I have a "power button" on my keyboard that enables standby or hibernate. I can't find the mapping of this key anywhere in "sytem settings>Keyboard", "system>power management", "compiz config> or ...
1
vote
1answer
537 views

Shutting down with power button without x11-session

When pressing the power-button inside a (gnome-)session, ubuntu asks me what to do and shuts down after 60 seconds anyway. No problem so far. But if i'm not logged in in a gnome-session (for example ...
0
votes
1answer
140 views

worth installing Jupiter on Acer Apire Revo?

Would it be worth installing Jupiter (power and device control) on my Acer Aspire Revo net-top ? Would it help my system any or make a difference ?
3
votes
2answers
690 views

Is there any need to install nvidia graphics drivers if I am running Ubuntu Server?

I have googled this question and arrived at no answer, so here I am. If I am going to be running Ubuntu Server, (as before I was running 10.04 Desktop) is there any need to install the Nvidia drivers ...
0
votes
1answer
574 views

How to keep SSH server running with laptop lid closed

I've changed the power management settings on my Ubuntu 10.10 server laptop to keep running with the lid closed but I loose any attempts to connect to it by ssh. Is there a way to change this so that ...
9
votes
2answers
2k views

Where does gnome-power-statistics get its data from?

Gnome-power-statistics is run when you click on the battery icon in the top panel of a laptop. It shows battery history such as charge and rate, as well as statistics such as discharge profile and ...
0
votes
3answers
370 views

Compile new kernel for ubuntu 11.10

My laptop is hp dv6 6080 with sandy bridge cpu. Linux has power issue and use more battery but i see in sites that new kernel doesn't has this problem. Is this true? if i compile this kernel for ...
0
votes
3answers
5k views

Automatic Reboot After Power Failure

I want a machine that loses power to automatically reboot when power is available. I've looked around and haven't found a solution that works for 11.04. Purportedly at one point you could do: echo ...
2
votes
1answer
668 views

How can I improve the power usage of my home Ubuntu server?

So, I have a home Ubuntu server, that I only use rarely, but sometimes use remotely. I would like to have it minimize the power usage, even if it requires a minute to access remotely, as I only use it ...
1
vote
1answer
260 views

Lost power while upgrading to 12.04, how do I fix the botched install?

I was upgrading from 11.10 to 12.04 just for kicks and lost power to the PC while it was about 3/4 done with the install section of the upgrade. I can login successfully and launch apps from the ...
2
votes
2answers
2k views

Cannot resume from hibernate (s2disk)

I seem to be able to hibernate OK using s2disk, but when I switch the laptop back on, it seems to hang half-way through the "resuming" menu. The splash screen looks healthy, it seems to be trying to ...
0
votes
0answers
120 views

Will Ubuntu 12.04 kernel address the ASPM issue [duplicate]

Possible Duplicate: Will final version of 12.04 use the power management changes found in kernel 3.3 I am asking as ...
3
votes
1answer
154 views

Unplug while lid closed does not result in standby [closed]

Since upgrading to 11.10 from 10.10 (fresh install) my laptop (Thinkpad X60) no longer goes into standby if the power is removed after the lid has been closed. Is there any way I can go about ...
0
votes
2answers
188 views

Why can't I login after a hard reset?

Ubuntu boots normal, and I can even login in terminal at any TTY (tt1 ~ tty6), but not in Graphical mode. This happened after a power-suspend. As I was trying to resume after the system suspended due ...
1
vote
0answers
466 views

How to enable Hibernate in 12.04? (Again) [duplicate]

Possible Duplicate: How to enable Hibernate in 12.04? I just installed the new 12.04 beta on my Lenovo Ideapad U450. According to this thread Whither hybrid suspend? hibernate and suspend ...
2
votes
0answers
259 views

How to enable Hibernate in 12.04? [duplicate]

Possible Duplicate: How to modify policykit to allow hibernation in upower? I just installed the new 12.04 beta on my Lenovo Ideapad U450. According to this thread Whither hybrid suspend? ...
2
votes
1answer
3k views

Access more options via Gnome Power Manager

im running Ubuntu 11.10 & am using the Gnome interface. I have installed the Gnome power manager and I am assuming this is it: This doesn't have that many options. I've seem some screen shots ...
0
votes
1answer
589 views

USB ports at 10Volt

There is a small "driver" from asus, AI Charger, that turns the PC's USB ports into 10V power supplier, which allows me to charge my iPad from my computer. Problem is, this only works on windows. Is ...
2
votes
6answers
5k views

Why is my laptop getting hot using Ubuntu

I switched from Win7 to Ubuntu and found that my laptop is getting too hot. (very hot). When I was using Win7, it was very nice, cool. Why this is happening and how do I fix it. details: Lenovo ...
0
votes
2answers
693 views

Excess power consumption in Dell laptop

I have bought a new Dell laptop, with 6 GB RAM, running 64 bit Ubuntu 11.10. I have both Windows on one partition and Ubuntu on another partition. When I use Windows, battery lasts for more than 2 hrs ...
5
votes
1answer
2k views

Lenovo ThinkPad L520 slows down when AC power adapter is plugged in

I have a new laptop Lenovo ThinkPad L520 (7859-5BG) Core i5-2520M(2.5GHz) with 4GB RAM. Having installed Ubuntu 11.10 32-bit, while browsing with Chrome on GNOME classic (no effects), I noticed 173% ...
1
vote
2answers
5k views

Turn-off WiFi / WLAN & Bluetooth completely (electrically off), how?

In windows, most laptops these days have a hot-key to turn off wireless modules completely (i.e. airline mode), including WLAN and Bluetooth. I am currently on Ubuntu 11.10, and wondering as to what ...
1
vote
1answer
297 views

When plugged in my laptop's CPU load gets higher

When I plug in my laptop (Asus EEE pc with brazos) it can't play a movie without lagging. When I unplug my laptop from the power socket, the lag goes away. I'm a bit baffled by this because I ...
2
votes
1answer
1k views

Why does powertop think I have two displays?

Ok, so in powertop (version 1.97), in both the "overview" and "device stats" sections, I see two devices, each called "display backlight". One shows the correct percentage of use, e.g. if I lower ...
11
votes
2answers
10k views

How do I check if last shutdown was clean?

How can tell that my last shutdown was properly done in Ubuntu 11.10 or if the machine was powered off before shutting down the OS?