Ubuntu :: Laptop Turns Off When Battery Is Not Empty?
May 2, 2010
Since I had updated to Lucid, I'm having some trouble with running my laptop on battery. It usually turns off when the battery notifier is still at 13%~18% (it is not shutting down, it is like when your battery runs out of energy). First I had thought that was a problem with the notifier and I was missing when the battery had no charge, but I kept looking at the notifier and suddenly when it had reached 15% my laptop just went down, without saving any job.
I've just upgraded to Lucid Lynx, running on a HP Pavilion dv4-1123us with 2.00 GHz Intel Core2 Duo T5800, 4GB RAM.
The battery is a 6-cell Lithium-Ion that came with the laptop.
I'd bought it about 1 year ago.
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May 1, 2010
Just installed 9.10 followed by a 10.04 upgrade (wouldn't work as a 10.04 clean install). The install and upgrade all seemed to go well.
But now when booting I get a message saying "checking battery state" and then it boots no further. This is a laptop without a battery installed, running permanently from the mains through the charger.
How can I disable this check so that the laptop will still boot without a battery fitted?
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Mar 2, 2010
getting back to our laptop, the stability window is ~3.2V. Meaning that when you operate the battery above this the electrolyte is oxidized on the positive electrode and reduced on the negative electrode. Remember that we only want to oxidize and reduce the active materials and don't want to do anything else. All these reactions other than the ones we want are called side reactions and these are really bad for the battery. The nominal voltage of a laptop battery is 3.7 V which means that something bad wants to happen as we use the battery.So long story short, stuff (e.g., passive layers and poor kinetics of reactions) happens and things are not as bad as they seem and you can increase the voltage up to 4.2V without bad things really happening. All chargers for Li-ion cells today cut the battery off when it reaches 4.2V. What you have to realize is that at 4.2V, these side reactions are present in finite amounts and start to chemically kill the battery, but its not that dramatic.
Operating to 4.1V makes things better and extends the life, 4.0 V is even better and so on. So why don't battery manufacturers cut the voltage off at, say, 4 V to get better battery life? Because every time you cut this voltage down you decrease the capacity of the battery and its run time. The 4.2V cutoff is a compromise between good run time and decent (read "not pathetic) life.On the other hand, if you charge the battery and then pull the plug (so to speak), the battery discharges some, the voltage drops, and these reactions become less of a problem and your battery life goes up. So the best things you can do is to charge the laptop (or cell phone, camera etc.) and once its charged, pull the plug. Your battery will thank you for it.As a matter of fact, if you own a Lenovo Thinkpad, you can actually change the state of charge to which you charge the battery using the Battery Maintenance utility. You can change this from charging to 100% state (where the voltage is 4.2V) to 90% so that your voltage is less. You lose some energy is doing that, but atleast you can change it to 100% when you need battery power and put it back down to 90% when you can plug in. I wish my Mac has the same feature.
I typically use the battery for a while (say 1/2 hour to 1 hour), then plug it in and wait to fully charge it, then I pull the plug and use it again for 1/2 hour to 1h and then I repeat this. Takes some getting used to and I forget to do this, but I try.
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Apr 15, 2011
I have installed Ubuntu (both 10.10 and 11.04 pre-release) on my laptop but my battery is not recognized and it is detected as a desktop system rather than a laptop. I have tried the cat /proc/acpi/battery/BAT1/state method but the directory doesn't exist. I have tried another guide to paste the battery info into this directory but it doesn't allow me to do that and says that the directory doesn't exist, even though I'm trying to make it. I tried it in root nautilus and even on an install of Lubuntu (with a root file manager) but it still failed to budge. I really don't know what to do as I have tried all the guides on the internet that I could find.
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Feb 4, 2016
I am having a rather odd issue, this week I installed Debian latest on to an old Acer Aspire 3810TZ; everything runs smoothly enough and I spent a good number of hours using the laptop on battery (about two or three, the battery is checked and in good enough condition given its age) then as the desktop widget reported the battery as being 22% or so full I decided to plug in the charger at which point the os reported the battery as being 0% and issued an immediate hibernation.
I have done a fair bit of searching for others whom have had the same problem, as I am sure its not a new one. But the majority of what I have read revolves around batteries not charging and mine certainly does, I just have to have the laptop switched off while I do so (unless its booted into windows, in which case its fine.)
Below is the output of acpi and upower.
Code: Select allsimon@DLC:~$ acpi -b
Battery 0: Discharging, 96%, 05:47:01 remaining
simon@DLC:~$ upower -d
Device: /org/freedesktop/UPower/devices/line_power_ADP1
native-path: ADP1
power supply: yes
[Code] ....
I am using the Cinnamon desktop environment ...
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Jan 10, 2011
My IBM Thinkpad T42 laptop fan is constantly running when the laptop is open.I only use AC power.Fan turns off when laptop is closed, which I did by selecting Suspend in Power Management.
cpufreqd and cpufrequtils are installed. cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor' is 'ondemand'
Constant fan was not a problem in XP Pro; I just installed Debian one month ago.
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Oct 31, 2010
I have an issue running the openSUSE 11.2 liveCD KDE on a Dell Vostro 3500. It boots fine to command line. It seems to boot fine to KDE (I assume it doesn't hang cause the power button turns the laptop off without holding it). However the only thing I can see is a black screen. I've checked the CD with the tool included to the CD. The hardware of the laptop seems to be fine as well
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Jul 28, 2011
The screen of my years-old HP laptop (running Natty) freezes and eventually turns black. Ctrl-Alt-F# works to switch to the terminals. My fan is even louder than usual. I spend some time fooling around with ps and kill and shut down some of the most resource-consuming processes, which quiets the fan a bit, but tty7 still shows a black screen except for my mouse pointer.
I finally decide to shut it down altogether, but then I think to myself, "Self, you've used the power switch to shut down before in this situation, but shouldn't there be a more proper way to do it in the terminal?" So I try shutdown, I have trouble with it, it proceeds to get hopelessly tangled up, and it looks like it's frozen up in mid-restart when I throw up my hands and decide to go for the old power-switch-for-five-seconds method after all. Now when I start the computer and select Ubuntu from GRUB, I get this:
[Code].....
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Aug 10, 2011
suspend has always worked fine with 11.04 and now it stopped working a few days ago. How can I figure out what is going on? The display turns off but the computer never turns off and the only way to bring it back is to hold the power button down and then start it back up.
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Nov 24, 2010
My battery Icon dosn't showup.
I did
Code:
I recieve back
Code:
Traceback:
And I also did
Code:
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May 28, 2010
my laptop battery capacity has gone low due to constant charging or whatsoever reason. previously it was at 62% and within 2 months its gone down to 32%. I use the laptop atleast for 18hrs every day. so is ther any solution to prevent my battery from losing the capicity.
i use dell studio 15 laptop, with 3 gigs of ram, lithium ion battery(56Wh), ati card, using compiz, p8600 processor. i use this for app development and for listening to music and videos.
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Aug 22, 2010
Over the past few weeks I've noticed that my laptop battery is dieing VERY fast. I have no idea what is causing this, and I haven't changed anything.
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Aug 29, 2010
I would like to display my battery into conky for my laptop, do you have /proc/acpi/battery/BAT0 ? - I cant find it
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Feb 24, 2011
So I've been using Ubuntu on a Toshiba L645d, and after a few hiccups with the sound and wireless, it's finally working well now. However, the battery is still a bit less when compared to Windows 7 (2:00 vs 2:35, but it came with optimizations on W7 so that might be the reason. A comparison of power used: 25w of power on Ubuntu vs 17.5 on W7.
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Feb 20, 2010
whenever i restart my laptop my battery icon disappears from the panel.
compaq c785tu
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Oct 16, 2010
When I'm running the laptop on battery the desktop freezes. It doesn't matter what program I use, it also happens when I just boot the system login and do nothing. I then have no mouse, no keyboard - so no key combination works. The only thing I can do is turn the laptop off using the power button and turn it back on. Usually the desktop freezes with in 5 min after login, but I also had one case were I was able to work for about 2 hours. When I plug in the power supply everything works fine.
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Aug 1, 2011
I have a problem when I boot up my laptop and my battery is not connected. You can not hear audio from your headset. But when the battery is connected when you start up the system, the headset works.ACER ASPIRE 4750gi have followed this instruction:
Code:
wget[URL]-O alsa-info.sh && bash alsa-info.sh
and here is my
Uploaded Data.
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Feb 17, 2011
When I am working with Windows OS on the DELL-Vostro-1014 laptop the battery is working. If however I switch to Debian Squeeze OS the battery does not work. Running #hardinfo & shows that there is no battery. Am I right in assuming that the driver for the battery?
/sys/class/power_supply/BAT0 gives
model_name DELL X612G0
Serial No. 18069
manufacturer LG
What driver is needed, where to search for it and how to incorporate in the kernel 2.26.32-5-686 ?
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Jul 16, 2011
I need a way to kill my battery in my Ubuntu laptop. Is there any mind numbing tasks I can Ubuntu do that will eat up the battery? I have already shut off the power management options. The battery is giving my issues and and someone said I should discharge it fully an recharge it from 0.
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Jun 1, 2011
I've got a problem with my laptop and I finally decided to try to solve it. My computer sometimes (not everytime) freezes. It's just when I'm using battery power. I figured out that this is not connected with some specific action (e.g. some app crash), it can freeze 1 minute after start or 10 minutes, I think it's random. I've checked my /var/log/messages.log file and these are the last messages before freeze (exactly at 9:16:15):
Code:
Jun 1 07:16:09 localhost rtkit-daemon[2170]: Successfully made thread 3472 of process 3472 (/usr/bin/pulseaudio) owned by '120' high priori$
Jun 1 07:16:09 localhost rtkit-daemon[2170]: Successfully made thread 3473 of process 3472 (/usr/bin/pulseaudio) owned by '120' RT at prior$
Jun 1 07:16:09 localhost rtkit-daemon[2170]: Successfully made thread 3474 of process 3472 (/usr/bin/pulseaudio) owned by '120' RT at prior$
Jun 1 07:16:09 localhost rtkit-daemon[2170]: Successfully made thread 3475 of process 3472 (/usr/bin/pulseaudio) owned by '120' RT at prior$
Jun 1 09:16:09 localhost gdm-simple-greeter[3481]: Gtk-WARNING: gtkwidget.c:6794: widget not within a GtkWindow
Jun 1 09:16:09 localhost gdm-simple-greeter[3481]: WARNING: Unable to read from file /etc/arch-release
Jun 1 09:16:09 localhost gdm-simple-greeter[3481]: Gtk-WARNING: gtk_widget_size_allocate(): attempt to allocate widget with width -47 and h$
Jun 1 09:16:11 localhost logger: ACPI action undefined: BAT1
I'm using Arch Linux x64, Gnome Shell and have the newest updates.
What's wrong with my laptop? Where should I look for errors?
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Apr 19, 2011
I have installed Ubuntu (both 10.10 and 11.04 pre-release) on my laptop but my battery is not recognized and it is detected as a desktop system rather than a laptop. I have tried the cat /proc/acpi/battery/BAT1/state method but the directory doesn't exist. I have tried another guide to paste the battery info into this directory but it doesn't allow me to do that and says that the directory doesn't exist, even though I'm trying to make it. I tried it in root nautilus and even on an install of Lubuntu (with a root file manager) but it still failed to budge. I really don't know what to do as I have tried all the guides on the Internet that I could find.
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Feb 24, 2010
I am using a Fujitsu Amilo pi3560 with a Realtek rtl8172 wireless card, and running the latest driver (rtl8192se_linux_2.6.0014.0115.2010). The OS is Ubuntu 9.10.
Everything runs perfectly - when my laptop is connected with the power cord. But when I go battery the wireless disconnects after a few minutes. It then asks for the wpa password, searches for the router, asks again, and so on indefinitely, until I reboot and it all replays once more.
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Jan 10, 2011
Running Ubuntu 10.04. Networking won't work at all. Used to work flawlessly. Problem is not hardware, because booting windows (vista) on the same machine I can still use networking.
Little story: I Was going into a short trip, then I put my computer to sleep (as usual). Trip took longer than expected and, when I came back, the notebook battery was dead. Charged it, booted the notebook (Dell Inspiron 1525) and now its network won't work at all. After reboot it even ran a filesystem scan, but problem wasn't fixed. The icon on 'taskbar' only says "networking disabled". The ethernet lights won't even light up when I connect a ethernet cable and it won't see any wifi networks. I've tried to fiddle with that little switch which would turn the wifi on and off, but all it seems to do is turn the Bluetooth on and off, as shown by the little Bluetooth icon on 'taskbar' (I've not tested bluetooth, though). I've also tried to plug a external wifi dongle but ubuntu won't even try to install it.
what's happening or what could I do to get my network working? Is there some 'magic' I can type into a terminal window to make this work?
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Apr 28, 2011
vlc is struggling to play movies when laptop is running on bettery.Like the video is streaming like a group of screenshots but the audio is good..happening for all video formats...Am using a dell studio laptop..ubuntu version 10.04...am seriously unable to watch the movies this terrible.
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Apr 17, 2016
I managed to install Jessie on my new Lenovo Ideapad 100 and have been trying to put the finishing touches on it. I downloaded FDPowermonitor and the icon showed up right away. Then after a few minutes it went away and hasn't shown back up.
I think I need to modify /etc/xdg/lxsession/LXDE/autostart to include @fdpowermon but I cannot figure out how to have the permission and use a editor I understand.
I just log into LXDE with root... but there has got to be a better way yes? But that didn't work anyway...
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Nov 2, 2009
Recently I installed FC 11 on my laptop. The OS is not displaying the battery status correctly in the notification area. if I remove the power cord after 100 % charging, the status remains the same even during discharging. It never informs me the correct discharge status or any warning when the battery power is critically low. This is causing unexpected shut downs and data loss to me. Is this a bug ? Do we have a solution for this. My laptop is Compaq CQ40-327TU; dual boot with Vista as alternate OS.
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Jun 24, 2011
I've been tooling around with Fedora with the Fluxbox environment on my old Dell 400SD4 laptop and it works fantastic. I'm still getting a feel for the environment, but one major concern that I had was a battery meter. Being a laptop, it's important to know when I'm almost out of juice. Does anyone have any suggestions for a battery meter for Fluxbox? Preferably one that can be installed through the yum repositories?
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Mar 24, 2011
A couple of days ago, my laptop battery starting discharging at random times. I could rectify this by either pushing the A/C cable in or rotating it slightly. Now the battery discharges unless the A/C cable is pushed in constantly. A few months ago I had a similar problem, though it was accompanied by the computer randomly shutting off. The battery had to be removed and reinserted before I could successfully power the machine back on. Purchasing a new A/C cable fixed this problem quite well. I suspect it may be the battery this time. The gnome battery monitor in LMDE is going completely nuts, announcing I have five minutes of power left and then happily informing me that I have 10 hours 42 minutes only a few moments later.
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May 1, 2011
My linux laptop isn't able to detect the current battery state. I am using slackware64 13.37 xfce with a Toshiba L645 laptop.
This is what I came up with so far.
Code:
lsmod
Module Size Used by
snd_seq_dummy 1479 0
snd_seq_oss 30116 0
[Code].....
I use a program called conky that reports my cpu frequency and most of the time it's always at 0.93GHz instead of 2.53GHz. Sometimes it jumps to 1.20GHz and 2.53GHz but falls back down to 0.93GHz. Is this normal?
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Aug 28, 2010
I'm trying to make my system automatically shutdown once the battery level is low, but still without success. I've tried kpowersave, gnome-power-manager, kpower, klaptop but none of these worked for me. Well, I can't imagine I would be that stupid, but simply it doesn't work. In all cases mentioned above (kpower, klaptop, gnome-power-manager) I've tried to setup the laptop to shutdown once the defined level is reached, but the laptop never actually switched off unless all the battery was drained.
Btw. I think all the above mentioned apps only work once the user is logged in. But I'd like the solution to work also when the PC is on without anyone logged in. I thought I could write a bash script based on parsing of acpitools output and define it as a service, which would monitor the battery level, but I simply don't believe there isn't any functional solution to this.
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