Ubuntu Networking :: 4965AGN Crashes On Battery Power
Nov 17, 2010
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".
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Nov 18, 2010
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
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Feb 11, 2010
Anyone have solutions for this problem: Can not establish or re-establish wireless connectivity while on battery power. Below are specifications
[Code]....
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Jan 29, 2011
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.
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Mar 31, 2011
I've got a Toshiba Satellite with the Realtek rtl8188ce network card. I've successfully downloaded, compiled and installed the driver and it works great except when running the machine on battery power when it constantly disconnects, like every minute or two.
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Sep 1, 2011
I am running Ubuntu 11.04 32Bit on an ASUS Eee PC 1015PX. I have found a strange anomaly concerning wireless connection when running on battery power. I have been experiencing very slow performance when connecting to my home NAS and also the internet through a wireless connection when using my netbooks internal wireless card (Broadcom Corporation BCM4313 802.11b/g/n (rev 01)) when running on battery power. The card works fine and connects at full speed when running on mains power but as soon as I switch to battery power the card connects to the internet/network fine but the connection speed is very slow indeed. I am using the Broadcom 802.11 Linux STA propriety wireless driver.
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Dec 18, 2010
I'm running Ubuntu 10.10 netbook edition on a Dell Mini 9 - worked around a few wireless issues on setup and connectivity has been fine, but now I'm suddenly losing wifi when I unplug my AC adapter. It still shows me as connected, but when I try to view web pages in Chromium, it will load pages for a few seconds, and then suddenly cuts out - though it still looks like it's trying to load the page.
It's the same if I boot on battery power - it will keep trying to connect to wifi but won't until I plug in the adapter. I'm assuming this probably has something to do with my power management preferences in battery mode, but I'm still pretty new to Ubuntu, and I'm not sure how to fix this. I've played with the options in power management, but I have a feeling there has to be more. Can anyone help me? This has been really frustrating.
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Mar 21, 2011
I have a problem with my wireless where when running the laptop from the battery the connection is very slow. When the laptop is connected to the power supply everything is fine, but the moment it's disconnected and run on the battery the speed drops when browsing the Internet or accessing files on other computers on my network.
The laptop is a Samsung SF310
Wireless chipset is BCM4313
Code:
02:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g LP-PHY (rev 01)
Subsystem: Wistron NeWeb Corp. Device 051a
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at f4c00000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: wl
Kernel modules: wl
In attempt to fix this I installed the latest drivers from the Broadcom site using this guide. When I enabled these drivers everything worked well. I did speed test and got the same speeds I get when connected via Ethernet:
Ping 51ms
DL 4.31
UL 0.65
So I set the drivers to load at boot using this forum post as a guide as the steps in the Broadcom guide didn't work and rebooted the laptop on battery power. The wireless connected fine, but the slow speed problem had returned. Running a speed test got the following results
Ping 235
DL 0.54
UL 0.30
So I ran iwconfig when running from battery and then from power supply.
Code:
xxxx@xxxx ~ $ iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
eth1 IEEE 802.11 Access Point: Not-Associated
Link Quality:5 Signal level:215 Noise level:160
Rx invalid nwid:0 invalid crypt:0 invalid misc:0
As can be seen the signal quality is 5 and signal level 215
Code:
xxxx@xxxx ~ $ iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
eth1 IEEE 802.11 Access Point: Not-Associated
Link Quality:5 Signal level:214 Noise level:164
Rx invalid nwid:0 invalid crypt:0 invalid misc:0
And when connected via the power supply the signal level is 5 and signal level 214. There may be some kind of power saving issue, although there are no relevant setting in the BIOS and I can't see anything in the various wireless control pannels. I have other wireless drivers and there are no problem with those.
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Sep 15, 2010
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.
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Dec 17, 2010
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?
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Jan 19, 2011
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%
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May 30, 2011
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.
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Jul 17, 2011
I am running 10.04 on an Acer Aspire One
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;
1 hour
Blank Screen
Hibernate
Yes
10 MIns
Yes
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Mar 18, 2010
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).
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May 2, 2010
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.
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Jun 12, 2010
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?
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Aug 17, 2010
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?
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Oct 23, 2010
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.
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Nov 4, 2010
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.
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May 21, 2011
My problem is that my sony vaio E-series (VPCEA36FA intel i5-560 4gb ram). The battery should stay at least 4 or 5 hours as i checked in windows platform but on ubuntu 10.10 it stayed only 3 hours now on 11.04 it stays only 2 hours !!! which really pisses me off, so is there any things i should know?? also the fan sometimes get so high i feel that the processor works on highest performance although am not using it that much.
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Jul 11, 2011
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.
Here it is: [URL]
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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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Dec 27, 2010
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.
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Jan 8, 2010
I've just installed Ubuntu 9.10 on an old PowerBook G4 I have, and when I go to Power Management, it doesn't provide the tab for battery-related settings (nor do I get the little battery/charge icon in the upper-right panel). I'm comparing this to the version of Ubuntu 9.10 I installed on my EeePC netbook, where those things are present. Is there anything I can do to get the Power Management preferences to recognize that the machine has a battery?
If it helps: the PowerBook had Ubuntu installed on it using the 9.10 "alternate" .iso, as I was having trouble burning the "desktop" .iso to a CD.
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Apr 22, 2010
I have a new Lenovo (thinkpad) x100e laptop. I've recently installed the new Ubuntu 10.02 distro and have found the oddest bug. If my power cord is disconnected (i.e. if I'm running off battery power) then the login window locks up. Conversely, if the power cord _is_ connected then things work as usually. (Also, trying to adjust brightness causes a crash --- but I suspect that this is not odd). Where I should put this information.
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Dec 7, 2010
I'm using a notebook with Intel 4965AGN and connecting to a Linksys WRT320N router. I can connect most of the time but after a while (sometimes a few minutes, sometimes a few hours) I lose connection. The notification icon would not change. I would only find out when I browse or click on a link and it would just get stuck at "Looking for <url>..." My wife's notebook would still be connected to the router even after mine has mysteriously disconnected. But she uses another os.
[Code]....
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Apr 14, 2011
I'm trying to set up ubuntu on my netbook, the brand and make is obscure, essentially, this is a no-name brandless build from china, but a pretty decent lappy. Atom N270 Intel 945GSE based. initially it was equipped with a 3DSP wifi/bluetooth mPCIe combo card, which is proprietary and didn't work on ubuntu (didn't even show up as a device), so I got an intel 4965agn based on compatibility list somewhere in the wiki.
The problem I have is that I see networks, but can't connect at home or at work or anywhere, it just hangs in the connecting status and then throws the authentication popup at me again (pw is all correct). I tried looking around at similar problems, some have wpa_supplicant related issues, but doesn't seem to be the same as mine.
I tried creating an unsecured network using my macbook's airport, and same thing happened with ubuntu... hangs in connecting status then drops, so it doesn't seem to be WPA. I don't have the device on me to do all the iflist iwlist checks for you, but if you could give me some clues, I'll post back when I get home.
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Jan 31, 2011
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
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Jul 20, 2009
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.
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Mar 26, 2010
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.
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