0
votes
0answers
12 views

Laptop intermittently detecting power supply

My laptop is an Acer Aspire 6930, very old, running Ubuntu 12.04 or 12.10. It ran fine (Albeit only for five minutes) on battery, but when plugged in it seemed to barely detect that it was receiving ...
0
votes
0answers
28 views

Slow performance on ubuntu 12.04 when laptop is UNplugged from charging

I've seen most of the threads on askubuntu about laptops being slow when plugged in but my laptop goes other way around. I'm still getting used to ubuntu settings and I'm not sure how to fix this but ...
0
votes
0answers
58 views

My Laptop Not Charging And Brightness Keys Not Working After Installing Ubuntu 12.04.3 LTS

I have Lenovo(G-505s) Laptop with per-installed windows 8. Recently I'm installed Ubuntu 12.04 through CD. But after installing my laptop battery not charging and my brightness keys not working in ...
1
vote
0answers
7 views

unable to edit settings for dirty memory

Ive been reading for quite some time on trying to edit the dirty memory settings and for some reason i cant save changes to any of the files even when I use sudo. The biggest reason I want to change ...
1
vote
0answers
45 views

Ubuntu 12.04, asus f550c : it do not go in power save mode

If I remove the charger from my laptop asus f550c, it do not go in power save mode, as I can see from the applet CPU frequency scaling indicator Indeed, usually if I suspend the laptop, it has very ...
1
vote
1answer
76 views

Suspend on lid close, even with the option OFF

I've set up a friends laptop with Ubuntu 12.04LTS with the Cinnamon desktop, and I'm having a few issues with the power settings. As far as I can tell I've got every setting to "Do Nothing" when the ...
2
votes
1answer
41 views

WOL - Ubuntu 12.04 LTS Power computer off, computer turns back on

I have an GA-B75M-D3H Gigabyte motherboard with an i3 processor that I'm using WOL from a windows machine to start the computer. The WOL is working fine but the issue is when I power the computer off, ...
0
votes
0answers
42 views

After pm-suspend /WOL the (usb) file system is read only

Ubuntu Server 12.04 for low-power home server (NAS mainly). System boots from USB pen-drive (to keep all IDE/SATA ports available for RAID, etc.). System will suspend when idle for time. pm-suspend ...
0
votes
0answers
44 views

Ubuntu 12.04 LTS - Will not boot on laptop using just A/C power

I have installed Ubuntu 12.04 LTS on my Acer Aspire 5741 alongside Windows 7 (Dual boot). The battery is on it's last legs and doesn't charge properly most of the time as it is relatively old. When ...
0
votes
0answers
87 views

Ubuntu 12.04 Samsung HD204UI Spin-Up-Time Fail after Suspend

Samsung's HD204UI 2 Tbyte EcoDrives are known for their slow Spin-Up-Time, so I didn't really wonder about a recent SMART failure, after suspend, in the Spin-Up-Time category. Now there is a ...
2
votes
1answer
41 views

Battery meter shows 6 minutes left immediately after unplugging power, and hibernates sometimes

I have a Lenovo y400. Whenever I unplug the laptop, the battery meter shows 0:06 or less and the Laptop battery critically low message pops up. It hibernates once in a while, the rest of the time it ...
1
vote
1answer
77 views

How to manage USB powering for sleep mode?

How to disable USB powering for sleep mode while on AC? Settings for each controller or each device would be nice, but I'm glad to see even a global setting. If on AC, after my Ubuntu turns asleep it ...
0
votes
1answer
77 views

Samsung series 3 runnint ubuntu 12.04, battery indicator does not recognize when I unplug my charger

I have a Samsung series 3 (NP305E5A-S01CA) running 12.04, everything has been running great except for the battery and power management programs. Even when my AC charger is unplugged and it is running ...
0
votes
0answers
459 views

Keep External HDMI Monitor ON

I am running XBMC (Frodo) on an Asus U47A laptop (Intel Sandybridge graphics) with Ubuntu 12.04. The laptop is connected to an older Phillips 27" tube HDTV via HDMI. What I would like is for XBMC to ...
0
votes
2answers
139 views

Asus laptop power management

I have a couple of symptoms that make me think Ubuntu has some problems identifying all the components of my laptop (Asus N56VJ-S4051H). When starting the computer from the OFF status, the fan goes ...
0
votes
0answers
48 views

uhci_hcd is draining my battery?

I'm an Ubuntu user for about a year. So far, I've tried Linux Mint (Nadia & Olivia) and Ubuntu 12.04 and 13.10. Currently I'm on 12.04 LTS. On all of the operations system I used, I experienced ...
1
vote
0answers
94 views

How to find CPU shutdown temperature? (Think it's called TJMax, maybe not though…)

In Windows there is a program called CPU Temp which shows various CPU temperatures, one which being the temperature at which point the computer will shut down to prevent damage to the CPU. I have a ...
0
votes
2answers
119 views

How do I Manually Limit CPU Usage? [duplicate]

I have an old laptop prone to overheating and a good solution I found was limiting it's CPU usage to below 50%. On Windows, I can do this by changing the power plan I am currently using, and altering ...
0
votes
0answers
49 views

Just got a new battery for my laptop, getting some weird readouts. Ubuntu 12.04

I have a Dell Inspiron N5010 and my old battery got old and could only hold maybe 30minutes worth of power at a time, so I got this: http://amzn.com/B0060KKW3O And I popped it in, no problem, I ...
1
vote
0answers
35 views

a step away from hibernate! [duplicate]

I'm having trouble enabling my hibernate feature. I have installed Ubuntu 12.04 LTS 64bit using Wubi on my Asus N53SN hybrid laptop ( Intel + Nvidia). After Updating through ubuntu Update manager AND ...
0
votes
0answers
360 views

Standby Mode (suspend) not working on my computer

When trying to turn the state suspend state the screen goes black, and after one second computer returns to the desktop. My motherboard is Asus P5N-MX Log from /var/log/pm-suspend.log: Initial ...
0
votes
3answers
64 views

Cronjob for specific hours

I need a cronjob with criteria to power on/off a TV on the basis: Mon-Fri, power on the screen at 07.00 and power off the screen 17.00. Friday after 17.00 to Monday morning to be powered off. I'm ...
0
votes
0answers
24 views

Ubuntu screen blinks and turns off

I'm using ubuntu 10.10,sometime screen just blinks and turns off system,after about 5 seconds log-in screen appears results in loosing everything I was working previously. Can any one helpme out...? ...
0
votes
0answers
687 views

Ubuntu 12.04 with LXDE shows no energy options

I am using Ubuntu 12.04 on which I installed LXDE by running sudo apt-get install lxde. I am currently using the lxde desktop. The problem is, that I can't find the energy settings. I need to ...
0
votes
0answers
82 views

manually changing power script to never shut off monitor

After a recent update my Ubuntu 12.04 LTS now powers off the monitor after 10 minutes of idle time. The power setting are set to "never" shut down. This update was sent out today also mess other ...
4
votes
3answers
13k views

How to enable hibernate on Ubuntu 13.10? [duplicate]

Something I usually do after installing Ubuntu is reactivate the hibernation function. I find it quite useful to function for the more energy concious. Typically, I'd complete the instructions in ...
1
vote
0answers
296 views

Battery Not Present XPS 15z U13.10

So I recently reopened my old laptop which was running ubuntu 12.04 lts. When I opened it, i noticed the battery was stated has ''Not Present'' in the top menu bar. When I click on that label, it ...
0
votes
1answer
78 views

Laptop “do nothing” does not work

I've just installed 12.04 on my laptop. At home, I use an external monitor and keyboard and would like to close the lid on my laptop. In settings under Power, I've selected "Do nothing" for when the ...
2
votes
1answer
62 views

Grub Power Down If Idle

So, I have reign over 200 PCs at my work place, which are all dual boot Win 7 and Ubuntu. We want to encourage usage of both OSes, so there is no timeout to the GRUB screen. GRUB will remain on screen ...
2
votes
0answers
285 views

How to count battery cycles?

Like most user that have searched about knows, Manufacturers ACPI implementation is a mess. And for most of our laptops, battery infos are unavailable or wrong (on a dell inspiron 15z, the rate is ...
3
votes
0answers
403 views

Periodic clicking sound from PC speaker, revisited

I've read several posts around the web about this issue of random clicking sounds coming through people's speakers in Ubuntu. The most helpful reply for my circumstances seems to be Periodic clicking ...
0
votes
0answers
78 views

Force battery power settings when plugged in

I recently bought a new laptop that tends to get quite hot. Today I used it for the first time on battery power, without plugging in the power supply, and I noticed that it didn't get nearly as hot. ...
0
votes
1answer
945 views

Disable hibernation

As simple as it sounds I cannot disable hibernation. I have disabled any GUI option to disable hibernation but my acer aspire one has decided to start hibernating after an hour. When I first ...
0
votes
0answers
70 views

ACPI events not registering

After upgrading to linux-generic-lts-raring, the ACPI events on my laptop don't seem to firing the associated scripts. For example, closing the lid does not turn off the screen and suspend the ...
0
votes
0answers
134 views

Sudden shutoff with no warnings on ubuntu 12.04

I have been experiencing sudden shuts with 12.04 LTS. I am running a Acer M5 581t(G) with 6 gigs ram laptop. I have been experiencing this for more then two weeks. Its shuts off all a sudden with ...
2
votes
1answer
201 views

Devices by 100% usage - How can I solve this problem?

I have a Lenovo thinkpad e530 laptop. some device have 100% usage in it. The results of powertop are in below: Usage Device name 10.8% CPU use **100.0% Audio codec ...
0
votes
1answer
268 views

Turn off Bluetooth on wakeup from sleep and boot automatically

so I'm running Ubuntu 12.04 on a Samsung Series 7 Chronos Laptop. It has i7 cores and Nvidia Optimus Graphics and, needless to say being Samsung, a number of bugs to go along with it. Basically every ...
3
votes
2answers
164 views

Causes of and how to minimize damage from forced shut downs?

Backstory: Since running 12.04 LTS, my computer has experienced two sudden losses of power; one due to my ham-fisted attempt to reboot and one due to a battery-less power cable disconnection. Both ...
1
vote
1answer
4k views

How can I improve the battery life under 12.04 on my Inspiron 14z? [duplicate]

How do I improve the battery life of my Inspiron 14z under Ubuntu 12.04? This laptop gets 4-5 hours of battery life using Windows (e.g. here). I've removed Windows, installed Ubuntu 12.04 and the ...
3
votes
0answers
346 views

System won't shutdown unless I stop networking init script [closed]

I speculate it's networking related since I could only shut down my system if I do /etc/init.d/networking stop first. If I tried to put the system to sleep, it disconnect the network then reconnect it ...
0
votes
0answers
276 views

Unusually high power consumption with Xubuntu 12.04, but not Ubuntu 12.04

About 8 months ago I installed Ubuntu 12.04 LTS on my wife's Dell Mini 9, and it was running reasonably well, apart from sometimes freezing when waking up from suspend. In an effort to speed it up a ...
0
votes
2answers
1k views

What linux distribution is less power hungry than ubuntu 12.04? [closed]

My notebook is a Compaq Pressario CQ71. The battery life is like 1:45 h. When Win Vista was installed on it, it was like 3 h. Now I like Linux more, but this distribution (ubuntu 12.04) is consumes ...
2
votes
1answer
2k views

My fan is always on but not in MSWindows (HP elitebook 8460p)

Problem: My laptop(new) fan is ALWAYS on. Question: What can I do to solve this issue? Situation: HP Elitebook 8460p Ubuntu 12.04 LTS (clean install, no mod, nothing... really clean... no ...
0
votes
0answers
105 views

Change brightness automatically depending on power source in 12.04

I'm running Ubuntu 12.04 on a HP G61. When I used to use Windows in this machine, my screen to autodimmed when unplugging AC (i.e. running on battery), and brightness was restored when plugged again. ...
0
votes
0answers
118 views

Laptop running Ubuntu battery management issues

I am a newbie to Ubuntu (after dumping 3 other distros) and have seen a terrible battery management from Ubuntu. I use a HP DV7 17" 8 gb ram beast with about 30 minutes of battery power since I ...
2
votes
2answers
1k views

Ubuntu not is hibernating when lid is closed

I use Ubuntu 12.04 in my laptop. I'm trying to configure to hibernate when lid is closed. However, not is working. I did the following steps to solve the problem: I enable in ...
2
votes
1answer
767 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 ...
1
vote
1answer
143 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 ...
12
votes
2answers
2k 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
2k 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 ...