I'm having problems trying to turn on the power saving on my intel 3945ABG wireless chip with the iwl3945 module. if i remember correctly, i used to be able to have the power levels adjusted before with previous releases / kernel (i started caring about power savings back again after getting a new battery).
keying 'iwconfig wlan0 power on' returns Error for wireless request "Set Power Management" (8B2C): SET failed on device wlan0 ; Operation not supported.
And 'iwpriv wlan0 power' returns wlan0 no private ioctls
Is there something i'm missing or does the chip/module doesnt support power saving features?
I am running a version of Ubuntu 10.4 with XFCE loaded (actually Qimo, a distribution for kids). I am using a pci wireless card with a broadcom 43XX chipset and WPA2 authentication using the Broadcom STA driver. In an account with privileges I set the auto eth1 (which is what my wireless card comes up as) to connect automatically, and make available to other users.
When I switch to the kid's account, the wireless connects just fine. Then, if the computer is not used for a period of time, the powersavings mode kicks in. When the computer is woken up, the wireless connection does not attempt to reconnect. If you right click on the networking icon it doesn't even show any available connections, even though it can be found by clicking edit connections. The only way I can get it to reconnect is to restart the machine (I will admit that I did not try to restart the networking service, I will try that tonight).
Any ideas? This has been driving me nuts for a few days now. The users during the day are non technical and can't deal with these kind of issues. I can post more details about the setup (as recommended by the sticky post) tonight. I am at work at the moment and can't get to the machine from here - because it has removed itself from the network again.
We just had daylight savings change (the clocks went back one hour at 2am). he machine that was on at 2am adjusted it's time on it's own. All the other machines (5 of them) were off at 2am are still on the 'old' time.Wwhat's the best way to ensure I don't have to adjust these manually next time daylight savings change? Maybe "ntpdate -s time.nist.gov &" in rc.local?
I recently set up some new cron jobs under Ubuntu 10.04 64-bit (all the latest patches as of Nov. 11th) and just happened to check right after one was supposed to run and it hadn't run yet. Checking the logs I found the previous cron job ran exactly one hour later than it was supposed to. Is there something going on with Ubuntu 10.04, cron, and daylight savings where cron pretends daylight savings never happened or something?
Is there a way to force the Intel 3945ABG card w/ driver iwl3945 into a specific modulation mode? 802.11G for instance? Instead of the auto a/b/g I tried
Code: sudo iwconfig wlan0 modu 11g And got an error like the following: SET failed on device wlan0 ; Operation not supported.
My system was powered down at daylight savings changeover. Like many Linux users, I keep my RTC on local time so that I can still boot XP on the odd occasion. With my older Linux distros, ntpd would correct the system time during the next boot, and the altered system time would be copied to the RTC on shutdown (by hwclock). This no longer seems to happen. During boot, ntpd corrects the system-time, and the users sees the right time, but the corrected time is never copied to the RTC. The issue only becomes a problem if the system is booted without access to any ntp servers - in which case the system time is visible uncorrected.
I was under the impression that the kernel's 11-minute save-RTC mode should preserved any NTP corrected system-time to the RTC. And failing that, a shutdown triggered hwclock --systohc should have also corrected the RTC. How come neither work for openSUSE (11.2)? Another issue is that having initially booted without an internet connection, ntpd refuses to re-resolve the the ntp servers and has to be manually restarted. Shouldn't ntpd have a roadwarrior option to retry resolving hosts? - this would save having to manually kick it via the command line or cron.
I seem to have run into the bug where my system was suspended when the DST change occurred (Not off so it didn't do it on reboot, not on so it couldn't do it then). I can't seem to find any way to do it manually. Is there any?
until yesterday night wireless was working fine on openSUSE 11.2 After a reboot, suddenly wireless is not even shown as a possible network medium. In the network manager, the tab with "wireless" is greyed out.After going through many forum posts, here is what all I have tried.Output from various commands:
I guess that driver is not getting loaded since modprobe is giving an error which I mentioned earlier. What could be reason? Did driver crashed? Since this issue cropped up only after I rebooted the machine.
Installed openSUSE 11.3 over an existing 'very stable' 11.2 installation and started experiencing wireless connectivity issues immediately. Network Manager would show connected 100% - 92% but I would lose connectivity to mail, browser and messenger(s). This disconnect would last less than 30 secs but would occur every 2 to 4 minutes.
dmesg reported:
[ 3663.672098] iwl3945 0000:03:00.0: Failed to get channel info for channel 3 [1] [ 3664.101085] iwl3945 0000:03:00.0: Failed to get channel info for channel 3 [1] [ 3664.529050] iwl3945 0000:03:00.0: Failed to get channel info for channel 3 [1]
BTW Channel 3 is the channel my wifi is broadcasting on. I've tried other channels and other computers and it is only openSUSE 11.3 having an issue. I am also using WPA2. Modifying the Global Options in Network Settings from User Controlled with NetworkManager to Traditional Method with ifup seemed to stabilize most of the issues, but I do notice occasional drops. I've also switched from Network Manager to wicd to provide some UI while dealing with this issue. Since iwl3945 drivers are now in the kernel I don't know if I should try to revert to an older driver or if there is another issue.
m using redhat 5.3 i have installed a driver for wifi as per my wireless card... i checkd my kernel version , nd it is as per the requirements... but i hve a file name iwl3945.ucode how to install the driver using this file...?
I have a slackware 12.2 server. We had some really rough storms this weekend that took the power out for many hours. The UPS that it was connect to gave up the ghost and the server went down hard. I powered up the unit and it some up fine but with no network. Ifconfig -a shows that it only knows about the lo interface. Both integrated gig ethernet ports are missing. I am not a slackware expert. Need to figure out what is needed to get it back on the network. dmesg | grep eth0 shows nothing. Nor eth1. ifconfig eth0 returns no such device.
I've got a new netbook - Dell Inspiron mini 1011. I have installed slackware 13 on it. According to dell's website its battery should last up to 9 hours:Quote:Mini 10 offers up to 9.5 hours of battery life1 to keep you on the go.I understand that it depends on a variety of factors and these are just testing estimations that will probably never be achieved IRL.For 95% of the time I don't run X on it. Just emacs (gnus), nethack, elinks. If I do run X, it's fluxbox. The average battery time is 2hrs - 2.5hrs. I understand that Slackware 13 is not designed specifically for netbooks, but 2hrs is way off the 9-hour estimation. Either the battery is faulty, or it's the power management issue. Before I deal with the battery, I'd like to ask you for some suggestions on improving the power management. The acpi and acpid are installed on the system. Are there any packages that would improve the battery performance? Or perhaps some config options?I believe that recompiling the kernel would improve it, wouldn't it? What options I'd have to set/unset?P.S.Unfortunately, once I checked the netbook is ok, I removed WinXP that came with it, so can't compare with it.
This is very likely a silly question but .. where is the power management setup in KDE? I have set it up before in Slackware 13.1 but now that I'm running 13.37 I'd like to set it up again but can't seem to recall where to set it up.
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.
I use Slackware 13.0 with the 2.6.33.2 kernel, and I use GnomeSlackbuild.I tried to get help on their discussion group, but I didn't get any.I'm trying to build gnome-power-manager 2.30, because it uses the new upower interface (so it seems). I have GTK+ 2.18.9.
I'm trying to compile a newer version of devicekit-power (currently I have 009) so maybe I can suspend/hibernate my laptop again, after I updated the kernel. I installed every package "./configure" asked, so it made a Makefile. When I use "make", it builds a few files, then I get this error:
How can I set it so that the account can change the settings in power manager? They're all grey'd out and unchangable And when I click on hibernate, it says suspend and hibernate are only supported through HAL, which is unavailable. I'm sure that hald is running.
If, as root, I 'Leave' --> 'Logout', I get the KDE login screen.If, as user rob, I 'Leave' --> 'Logout', I get a black screen from which I must power off to recover, and I use the term very loosely. User rob is a member of the 'power' group.
I noticed that there is a 1.0.1 version of xfce4-power-manager, so I tried it out last night. Note: It requires libxfce4ui >= 4.7. I compiled it using the same SlackBuild script as the one in Slackware 13.1. It compiled and installed just fine. However, when I logged out of XFCE and logged back in, I could only set a few options, and battery options were completely non-existant.
I double-checked, and my user account in in the power group. Has anyone else had a similar problem? In the meantime, I've downgraded back to the 0.8.5 version that Slackware ships with.
I got Slackware 13 installed with GNOME SlackBuild v2.26.3 I am trying to find where the wallpaper of power resuming screen is siting on, I mean, after the power was resuming (after hibernation mode for example), you have the screen where you should type your password to logon back to the system, so does someone one where is it?
I'm using Slackware64 13.37 with Robby's Xfce 4.8 build on a laptop with two batteries. I've noticed that when the charge for one battery is depleted, the empty battery icon for the xfce4-power-manager panel applet is displayed as an "image missing" icon (see the attachments for screenshots of how this progresses).
Is this just down to a missing image, or is it more subtle than that? Has anyone else had the same problem, and if so how did you fix it? So far I've tried clearing the GTK+ icon cache and reinstalling the hicolor icon theme package as suggested in other threads in this forum, but nothing changed.
My power settings is set to put the laptop screen to sleep after some minutes of inactivity. This works fine, however it doesn't want to come back to life if I move the mouse, type etc...
I'm running Slackware64 13.1. When I change the bright of my screen, xfce power manager show a info bar. But now it disappear, when I run xfce4-power-manager from a terminal I get this info:
Quote:
Another thing, Slackware don't have cpu governors?
I use Squeeze with Xfce. My problem is that recently (after the xfce updates) the xfce power manager doesnt react to the power button - it is set to suspend. I dont have gnome-power manager or anything like it running. If i reboot the computer, the power button will work but if i suspend and resume, it doesnt work again. The computer is built on an Asus M3N78-VM mobo (2GB RAM/Athlon3200+ single core).
I am using Ubuntu 10.04 64-bit and I purchased a new ALFA AWUS036H wireless card. I would like to know if this "1Watt" wireless card is configured for full power. iwlist wlan0 txpower results:
wlan0 unknown transmit-power information. Current Tx-Power=27 dBm (501 mW). It appears to me that I should be able to increase the power. "iwpriv wlan0 highpower 1" does not work. Do I need to patch the new default driver that comes with Ubuntu 10.04 64-bit with the aircrack one following these directions:[URL]...? Monitor mode and a injection tests seem to work fine with the driver I have installed.
I'm looking for any power monitoring devices for Linux to allow monitoring power quality, voltage changes, and outages. This would be for North American three phase power system. I want to have this data fed live to my own program. It should be something much better than just jury-rigging a circuit to fee the power waveform into 2 or 3 audio cards.
