Is there a way I can specify at what percentage i can make my battery to start charging? I guess the default it 95% which ends up wasting a lot of battery cycles.And my second question being can i have different modes like power saver,performance?
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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.
Can't get my battery to charge, it reads that it may be broken (about 20%).It reads that it is charged but when I go to details it reads charged but no watts.Also the time and menu commands at the top of the screen are not readable.they seem to be black on black text. This may be something stupid I have done...Toshiba Satellite pro L300 running natty
View 3 Replies View RelatedI have a dell inspiron 2200 that has a pentium dual core and have been running Fedora 13 flawlessly I just noticed recently that my battery wasn't charging. It says battery fully charged at 0.0? And some days can't really recall it charges is there a way to fix this? I am running 2.6.34.7-56.fc13.i686
View 6 Replies View RelatedI 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%
View 5 Replies View RelatedI have a strange problem with the ACPI in my laptop, the problem start some days ago, I don't remember exactly the day.
The first symptom is with de Gnome Power Manager, only show me when I disconnect de AC power, but when connect it again the Power Manager icon disappear and the energy battery stay in the same value.
After search for a while, all the post I read talking about the /proc/acpi/battery directory, but this directory not exist on my laptop.
I have a laptop Lenovo G460. My OS is Squeeze. My Kernel is 2.6.38-bpo.2-amd64, because the 2.6.32 version of the kernel don't recognize well my audio card.
I can't attach the dmesg and the lsmod output because I receive a message "Sorry, the board attachment quota has been reached.", both file are compressed.
the default battery indicator does not show percentage of how much battery left, is there a way to make it show or another indicator that does that? (using lenovo thinkpad sl500, lucid x64)
View 2 Replies View RelatedI'm running Windows 7 Enterprise and noticed something new. The system icon for battery life is showing "plugged in, not charging." Does this oddity occur in Fedora too?
View 6 Replies View RelatedI have just bought a new netbook and now it runs ARCH linux.To connect to the internet I am using an Alcatel x220 USB 3G modem dongle and wvdial (with pywvdial) and here is wvdial.conf
Code:
[Dialer Defaults]
Init1 = ATZ
[code]...
The battery icon on the top panel is really small and ugly. woud assume I just gotta change the size of the icon file, but I have no idea where to find that
View 4 Replies View RelatedI have a Samsung R510 laptop, with a short-life battery (holds up to 1.5 hours) Is there any way to make my laptop work longer by using some tweaks? Maybe it is possible to change the CPU according to the load?
View 3 Replies View RelatedHardware: Vostro 3500, BCM4353Ubuntu 10.10Today I decided to test uptime on battery. But when I started using battery I noticed that internet connection is very slow(around 1-4 KB/s, normally ~128KB/s).I used Code:iwpriv eth1 set_pm 0(pm = power mode? And what means this parameter 0, 1 and 2?)and everything seems to be ok now.And my question is - where can I edit which power mode settings for wifi are used on battery?
View 1 Replies View RelatedIn Jessie I would change the "critically low battery value". So from dconf-editor I followed this path:
Code: Select all/org/gnome/settings-daemon/plugins/power/
as suggested here [URL] ....
and here [URL] ....
The problem is that I haven't none of the following fields:
time-action
time-critical
time-low
or
use-time-for-policy
percentage-action
percentage-critical
percentage-low
How can I overcome this problem? Why the dconf-editor seems to be incomplete?
I have a wireless headset that I'm trying to charge through USB. When I connect it, it just doesn't charge. Looking at dmesg, the device isn't recognised, which is not surprising, since I think the USB port is only for charging, and it won't communicate over USB. lsusb also tells me that (apart from other things that are connected to the USB bus, that all of the 'MaxPower' variables are set to 0mA. So what I think is happening is I connect the headset ubuntu queries it, receives no reply, and so doesn't let the port draw any current. As far as I'm aware, there usually is some kind of OS handshaking like this, but it may vary from model of computer to model, so there's no point in saying "my <INSERT USB DEVICE HERE> charges". I am able to charge my MP3 player from the same port (because it's recognised), and I can charge the headset if I use a dumb mains->USB/5V transformer, but it should also work with my laptop. What I think I need is some way of manually setting the 'MaxPower' on the USB ports.
View 4 Replies View RelatedI have a dual boot with Windows XP and Ubuntu 10.10. I connected my Amazon Kindle to an USB interface in XP and in Ubuntu. From XP everything works with no flaw. In Ubuntu the data exchange is perfect, but the device does not charge.
View 2 Replies View RelatedI didn't know that charging via usb for my sony ericsson mobile, w880i actually needs the SE PC Suite to be installed, cos, I used to charge it via usb cable, as mentioned, on my workstation, which is window based, it's kinda insignificant to me that the software has to be installed first.
However, I'm currently on the move, with my newly installed "netbook", I installed Ubuntu 9.10 on my twinhead efio 121A (which is good, no compatibility issue) and now, I just figured that, SE PC Suite does not have any linux version, but my mobile is already out of battery, and I desperately need to charge it,
I did run a lsusb, it doesn't seem to detect the phone, neither as usb storage, or as a phone, cos, I saw other people lsusb output, it's an item with "sony ericsson", but my output does not have such item. However, when I plug in the usb cable, it did prompt to ask me to choose between "file transfer" or "phone mode".
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?
Simple question (I hope). What does the dot at the end mean?drwxrwxr-x
View 3 Replies View RelatedJust installed Ubuntu 10.04 via Wubi on my laptop. It's looking good so far but to cut to the chase, I only have 2 display modes. This is 640x480 and 800x600. Is there anyway to 'trick' the system into getting a 1200x800 display mode as I have found that graphic drivers for the SIS Mirage 3 are non-existent.
View 6 Replies View Relatedhow do you enter into different modes of vmstat e.g-disk mode,disk partition mode and slab mode.going through man pages i figured out using "vmstat -p <partition> is for 'disk partition mode'.there is no info regarding diskmode and slab mode
View 1 Replies View RelatedI have a 3 year old laptop with the original battery and its drained pretty bad. The "Battery may be broken" popup was driving me insane and this is how you disable it, in case you are in the same situation as me. Open terminal
Code:
gconf-editor
Drill down to...
apps --> gnome-power-manager --> notify
uncheck the low_capacity checkbox. This should disable the popup for you if your battery has little life left in it. Now, if any knows how to disable the Avahi popup, let me know.
My old PC has new life thanks to Ubuntu 9.1. However, a few small problems still remain:
1. D-Link wireless adapter: My wireless connection percentage never seems to get higher than 70%, even though the wireless router is right outside the door. And to top it off, I can see other neighbor's networks and the signal strength is higher! I am running ndiswrapper if that helps, and the connection is WPA/WPA2, speed of 130 Mb/s which is great, but can I improve the signal?
2. If I leave the computer on and come back after a while, the monitor is black, and I can see that the wireless connection is still going, but I can't seem to "wake up" the computer. I have messed with the settings, but have not attempted anything in the terminal. Can someone provide a simple fix? I would like to Suspend or Hibernate, but they don't work (meaning, I can wake up the computer). So I have resorted to simply logging off each time, which works.
3. Watching streaming video using RealPlayer, many times the screen freezes, and I am unable to navigate to anywhere else on the computer. Meaning, the mouse moves, but cannot open, close, change, do anything on the computer. Ctrl-Alt-Dlt doesn't even work to pop up anything. Is there a less abrupt way to Force Quit than holding down the power button on my computer and restarting the whole thing? I am sure that is not too good for the computer.
I'm using Ubuntu 10.10. How can I switch between text-based splash and GUI splash? My computer is currently showing a purple text based splash screen when booting Ubuntu. How can I switch it to GUI mode?
View 4 Replies View RelatedI am running a mainframe emulator on an old HP server in runlevel 3 text only. I have googled a bit but found no information on controlling the text video mode in runlevel 3. When I boot my Fedora 12 system chooses the highest resolution it can meaning my c3270 terminal emulator program (80x25) is in tiny font occupying a fraction of the upper left corner of the screen. I have looked everywhere but can find no mode setting commands for runlevel 3 text only.
View 7 Replies View RelatedMy configuration is as Follows:
Intel Pentium Dual core 2.6 Ghz
4 GB DDR2 Apacar 800 Mhz RAM
Gigabyte ATI Radeon 5450 HD GPU
I'm using Fedora 14 KDE but on startup it uses 40% of my processor. I'm using the proprietary 10.12 AMD ATI Linux Driver. I'm only using blur and woobly windows effect and I'm using OpenGL. Kubuntu/Suse never gave me this trouble. Even GNOME doesn't only KDE and fedora 14 is troubling me.
Does anyone know of a trick or tool that will show me ther directory?Example:neatcmd.bash /dir1/dir2/file1 /dir1/dir2/file1 permissions are 0640Or does anyone know of a tool or command what would convert, for example rwxr-x--- to 0750 suppose it could be scripted, but I was trying to make sure I did not have to re-invent the wheel if something was already out there.
View 3 Replies View RelatedI'm on Debian Squeeze, my PC has a Radeon HD4770 card. I honestly don't know if it's currently running on OS or proprietary fglrx drivers; I installed fglrx, but the control panel app insists the driver isn't loaded. I'm following these instructions to try to get my screen running at 1280x960x85. It's currently at 1280x1024x85, but it's an old CRT that, for some reason, works fine at 1280x960 but gets unfocused at 1280x1024. I'm following the step "adding undetected resolutions", and here's the result:
Code:
fallingwater@longcat:~$ xrandr
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 2048 x 2048
DVI-1 disconnected (normal left inverted right x axis y axis)
[code].....
I wanted to log some messages on Apache. So I added in VirtualHost definition
Code:
CustomLog /var/log/apache2/site-resp_log resp
LogFormat "%{X-Forwarded-For} %D %t %T %v %O %b %A %B" resp
and restarted apache2.
I got following error
Code:
* Restarting web server apache2
Syntax error on line 33 of /etc/apache2/sites-enabled/site.com:
Unrecognized LogFormat directive % [fail]
root@server:/var/log/apache2# vi /etc/apache2/sites-available/sites.com
Here is a page I referred to. I am not able to understand the syntax error.
I see the Wifi Signal Strength icon on the top bar, but where's the label that shows the signal strength percentage? Is there a way to re-enable the label or did Canonical deemed it to be unnecessary?
View 3 Replies View RelatedIs there any USB mouse battery indicators for Ubuntu that can tell me the battery level of my Logitech USB mouse? (something like a laptop battery one) I want to add it the panel.
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