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?
So I've come across several tips to optimize battery life on Linux. [URLs]. In addition to undervolting, I would like to underclock. Is there a way to control CPU speed outside of the BIOS via some software control in Linux... or some sort of boot manager? I would like to boot to linux using underclocked speeds and have Windows running full blast. Is there a way to run Linux completely in RAM? I have read that saves on power consumption from the hard drive.
I'm running 11.04 on my Dell SXPS 1645. Today I unplugged my laptop from AC power a few times and after about 10 minutes, Ubuntu would hang, not responding to anything. Frozen mouse, frozen keys. The ONLY thing I could do to get it out was to do a hard hardware restart by holding down the power button.
It happened twice on Skype (and I thought it was just the buggy 2.2 beta that was hanging my beautiful OS), once while installing a printer, and once while I was just futzin around on firefox.
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.
I have a Lenovo Thinkpad T520 laptop with Nvidia NVS 4200m Graphics card. I installed Ubuntu 11.04.
Before I installed Ubuntu 11.04 I had went to my bios and disabled Nvidia Optiums and changed the graphics to Discrete Graphics. Then inserted my Ubuntu 11.04 CD and installed.
With this I had gotten unity to work. However when I pull the power cable from the laptop my screen freezes. Also if press "FN"+ Home or END to change the brightness of the screen my screen freezes and no longer able to move the mouse or press anything on keyboard.
Did anyone ever run into this problem and or fix this issue? I can get the graphics working properly with Ubuntu 11.04 with Unity with a Nvidia NVS 4200m graphics card.
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.
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?
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.
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.
I am using Fedora 12. Prior to this I was using Ubuntu 9.10. In Fedora 12, I am facing a problem with battery power. Sometimes when it is fully charged I remove the power cord, battery power comes down to 40%-41%. It never happened with Ubuntu, which gave quite a good battery performance. My question is when it is showing Laptop Battery 100% i.e. fully charged, if I remove the cord why it comes down to 40%-41% (and always in this range).
I am running a cli only based laptop for a special project; however, is there any terminal based simple text or GUI applications that will give me power remaining and other information about the battery? Looking for: power remaining, total power, WATTS, AMPS, etc.just the basic items and some other items, nothing to fancy.
I have a starling netbook, but I have the regular ubuntu interface on it. I normally have it plugged into a power source, but now it is unplugged. As I remember, at one time there was an icon on the top bar that showed you how much battery life you have left, but now I don't see it. How do I get info on the percent of power I have left?
I know how to set and have set my net-book gz5 running on lucid to stay on at all times.however unlike in xubuntu I don't have the option to change when the computer is critically low. I don't have the room to install xubuntu with my preferred gnome desktop wondered if anyone out thee knows where if there is a .config file that I can dictate the percentage of battery life before being considered critically low. ei now it seems to consider itself low at 15% which robs me of about 2 hours of usage id like to set it around 1%
based distros but never tried it in others. I am wondering if I can complete this guide in Fedora 15. In order for Linux to be my primary OS (Which I'd really like it to be) I need to be able to see how much battery power I have. If all the packages are available how I can download them and what not so that I can get my battery power back up.
I have no Wifi on Battery Power?My wifi quits when power cord is pulled? I plug in the power cord and wifi works again?Dell XPS 16 1645 Ubuntu 10.10Much appreciated for a link to solve the problem or instructions
Since my upgrade from Lucid my battery icon displays permanent full charge even when running without AC power. When the battery runs out, this leads to an immediate violent shut down, everything dies at once.
My power management settings for running on battery are as follows;
I'm running the latest slackware64-current on my Dell laptop (Inspiron 1420). I rarely run it on battery power, so I don't know when this behavior started, but now it seems when I'm on battery power the hard drive likes to spin down and then spin up. This is not after 5 minutes or so of inactivity. This is 30 seconds of inactivity because I'm reading a web page or something. There is a noticable delay in the response of the system as a whole when the drive is having to spin back up. I'm also using xfce-4.6.2 with the xfce power manager. I've checked the settings, and I don't see anything about spinning down the hard drives. I've also looked through some ACPI rules, but I'm coming up empty.
Fresh new installation of squeeze on an MSI Wind U100 netbook.Everything works fine, except resuming from hibernate when on battery power. The netbook starts loading the hibernate info after grub booting, then the screen goes blank and the netbook reboots.The unusual thing is that resuming from hibernate works when on AC power.Could not find anything interesting in /var/log/messages
I have gnome-screensaver on fedora 10 on an intel mac (laptop) under power, screensaver works fine. On battery, the screensaver never activates, it will eventually go to sleep though. I'm kind of new to fedora.
How does the Battery Power Meter works.As I know that the APCI is control by software.so my question is the battery connected also to other place on the board and send signal for how much power left.or every motherboard that have APCI "Enabled" can recognize only from the DC power connector how much left. if yes, in what why it recognized.
I recently bought a 12-cell (extended-life) battery for my HP dv8000 AMD Turion64 laptop. While the extra battery life is spectacular, the machine is virtually unusable when not plugged in. Either the hardware or the OS (I'm not sure which) seems to view each of the 12 cells as a separate battery, so whenever a cell nears depletion and the machine prepares to transition to the next cell, the computer slows to a standstill, as though it were shifting into an extreme version of Powersave mode. This can last for several minutes at a time, during which period all I can do is stare helplessly at my screen.
I have all but disabled Powersave features in the Power Management applet, setting the laptop to Performance mode on both AC and battery power, with Powersave only kicking in below 10%. So that isn't the source of the problem. I have also disabled Compositing and all desktop effects, except the mouse pointer application-icon animations that appear when I open an application, which I can't figure out how to disable. All this to no avail.
Plug the machine back in and it zips along at a merry Linux pace. I don't want to keep it plugged in all the time, though, because a) this is a laptop and therefore should be mobile; and b) keeping a charged battery plugged in drastically shortens its battery life. Besides, this is a brand-new battery; it should still be working fine.
I am having several problems with what i believe to be gnome-power-management. Power management will randomly say that either i do, or don't have a battery. This means that the icon in the notification area does not appear, and I can not access the settings for on battery power. also, when i tell Ubuntu to suspend, it just goes to the screensaver and nothing happens. conky is still able to read the battery just fine, its power management thats having problems.
For example if my netbook runs on AC i would like it to start emesene, Skype etc. on system startup, but if it runs on Battery i want different startup programs - less of the same programs basically -.Is there some script i could use for this purpose?
Under "Power Management Preferences" > "On Battery Power" > "When battery power is critically low" : We have several options : Suspend, Hibernate, Shutdown; but we don't have the do nothing option.Does any one know if i can disable all these actions so the computer will do nothing when the battery power is critically low? May be by a terminal command?
I'm having a huge performance decrease when I'm on Battery Power. Plugged in this thing runs AMAZING, HDMI with HD video, I can run compiz 3d, full desktop advanced effects, HD video from ....., you name it. Just when I pull the cable out it slows down. I tried disabling ATI powerplay but that didnt help.
Is there a way I can toggle the performance, so that I can get "plugged in level performance" even when i'm on battery power? I'm not too bothered about how long the battery lasts. I'm usually always near an outlet.
I have an Acer aspire notebook.graded from lucid and now I have a really big problem:every time i disconnect the ac-adapter from the pc, the system freeze completely, became unresponsive to commands and to sysrq. i need to phisically turn off the machine and then back on.
I have a Dell 1501 Inspiron laptop and have swapped out the broadcom network card for an intel 4965AGN so I can use n-speed with my new router.Everything works sweet except my laptop now crashes if I try to run on battery power.It boots up to the login screen, but once I enter password and login it crashes, just get grey screen and everything locks up. Everything works fine on mains ?It's not a major problem for me as I don't use the laptop "out in the wild".
just installed Ubuntu on my Macbook Pro and im loving it right now, but whenever I disconnect from the power source and run from battery, my wifi Internet slows down to a crawl. As soon as i plug the power back in, the internet is back to normal.
