From: Blaine <fr...@gm...> - 2011-12-16 17:05:40
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In short: Does anyone have a known working overo image that does not have wifi time out? I really feel dirty running a "ping -i 60 google.com" in the background just to keep wifi working. Specifically this image has the following property: 1. Does not turn off wifi after 2-3 minutes of inactivity. I've tried three images, so far. The latest development image (console) from the gumstix website (Oct 2011), (from here: http://cumulus.gumstix.org/images/angstrom/developer/2011-10-17-1015/), the stock image (Oct. 2010), and an older 'known' working image that I found online from a blogger who had the same problem but he said that his image fixed the problem (September 2010). Blaine On Wed, Dec 14, 2011 at 12:52 PM, Blaine <fr...@gm...> wrote: > Kishan, > this happens regardless of the /etc/network/interfaces configuration. > From what I understand that file only specifies what the default behavior > of the card is. But I do have it set to the default recommended > configuration for an open access point. > > We plan on using the gumstix in a data streaming situation so having the > wifi go off for 2-3 seconds is unacceptable anyway :( Either way, it > doesn't come back on after 2-3 seconds. It stays off. > > As of now I have a ping script running in the background every 30 seconds. > A huge hack but that's all I can figure out for now. > > Thanks for your help. I'm not sure what else to try. > Blaine > > > > On Wed, Dec 14, 2011 at 1:48 AM, Kishan Kant <kka...@gm...> wrote: > >> >> Power Management is "on" for me too, so that certainly isn't the problem. >> >> And I too get the message "Calling CRDA to update world regulatory >> domain". When I get this message, I think the overo wi-fi goes down briefly >> because when I try to ping it immediately, I can't. But then within 2-3 >> seconds the Wi-Fi is up again; I get ping responses from the gumstix. >> >> I'm not sure what the problem is. Is your /etc/network/interfaces set up >> problem? >> >> >> -kk >> >> >> >> On Dec 13, 2011, at 5:32 PM, Blaine wrote: >> >> > I've noticed that "power management" is now ON with this new build. I >> tried to disable it, got a bad message: >> > root@overo:~# iwconfig wlan0 power off >> > Error for wireless request "Set Power Management" (8B2C) : >> > SET failed on device wlan0 ; Operation not supported. >> > >> > Crap. >> > Blaine >> > >> > >> > On Tue, Dec 13, 2011 at 5:23 PM, Blaine <fr...@gm...> wrote: >> > This appeared to have worked at first, because the wifi stayed on for >> more than 2-3 minutes... but then this flashed on my console: >> > >> > cfg80211: Calling CRDA for country: US >> > >> > and then the blue wifi LED turned off. Still have IP, iwconfig says not >> connected to any access point. >> > >> > any thoughts? the CRDA message is new to me. >> > >> > Using the development image: >> > Linux overo 3.0.0 #1 Tue Oct 11 11:37:21 PDT 2011 armv7l GNU/Linux >> > >> > Blaine >> > >> > >> > >> > On Tue, Dec 13, 2011 at 4:34 PM, Blaine <fr...@gm...> wrote: >> > Thank you kishan. I'm currently using the stock image that came on the >> overo, built October 20 2010. I'll try a new image and see what it does. >> Thanks! >> > Blaine >> > >> > >> > >> > On Tue, Dec 13, 2011 at 4:30 PM, Kishan Kant <kka...@gm...> >> wrote: >> > Are you using one of the pre-built development images (if yes, which >> one) or your own? >> > >> > I had WiFi issues when I was using the factory pre-built development >> image. But when I used the latest development pre-built image, the WiFi >> worked fine. >> > >> > On Dec 12, 2011, at 6:43 PM, Blaine wrote: >> > >> > > Hi everyone. I solved the "why won't the ESSID" connect due to "user >> error". One of the letters in our ESSID was capitalized... hah. >> > > >> > > Still no solution on why wifi appears turns off after 3 minutes. For >> now I have to ping in the background. >> > > >> > > Blaine >> > > >> > > >> > > On Mon, Dec 12, 2011 at 5:20 PM, Blaine <fr...@gm...> wrote: >> > > Actually I do have one other incredibly frustrating problem. The >> following works as defined by "the blue wifi LED stays on": >> > > iwconfig wlan0 essid any >> > > >> > > But half the time it picks the wrong network. I can't force it to >> pick our network for the life of me >> > > iwconfig wlan0 essid myhomenet >> > > >> > > never works. Flashes the blue LED but then it ends up staying off. >> > > >> > > When the first command randomly picks our network, everything works >> fine (until it auto-powers off). But it is really frustrating if it picks >> the wrong network, it's like there is nothing i can do to get it to work >> correctly >> > > >> > > (by the way I'm using the wiki wifi tutorial, disabled bluetooth, >> uninstalled the network manager. >> > > Linux overo 2.6.34 #1 Wed Oct 20 10:22:48 PDT 2010 armv7l GNU/Linux >> > > >> > > Blaine >> > > >> > > >> > > >> > > On Mon, Dec 12, 2011 at 5:15 PM, Blaine <fr...@gm...> wrote: >> > > Hi everyone. I'll keep it quick. Unlike most overo issues, when my >> wifi is working it works fine (I think). I can ping google and for now >> that's all that matters. >> > > >> > > I can see the little blue LED on my board. When I connect to an >> access point successfully, it flashes and then stays on. After 2-3 minutes >> it turns off, and I have no network connectivity even though it think I do >> (with iwconfig, etc.). No dmesg statement, nothin'. I have to bring it >> down, bring it back up, and do the "iwconfig wlan0 essid on" to get it back >> up. Light comes back on and I'm good to go. >> > > >> > > If I hold a ping command like "ping google.com" there are no >> problems and it will stay on continuously until 2-3 minutes after stopping >> the ping. >> > > >> > > I remember that the LCD display has a power saving mode that we never >> figured out how to disable. Is this related? All I want is stable wifi that >> doesn't turn off. I can't figure out what is causing this behavior. >> Suggestions are greatly appreciated. >> > > Blaine >> > > >> > > >> > > >> ------------------------------------------------------------------------------ >> > > Learn Windows Azure Live! Tuesday, Dec 13, 2011 >> > > Microsoft is holding a special Learn Windows Azure training event for >> > > developers. It will provide a great way to learn Windows Azure and >> what it >> > > provides. You can attend the event by watching it streamed LIVE >> online. >> > > Learn more at >> http://p.sf.net/sfu/ms-windowsazure_______________________________________________ >> > > gumstix-users mailing list >> > > gum...@li... >> > > https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > >> > >> > >> ------------------------------------------------------------------------------ >> > Systems Optimization Self Assessment >> > Improve efficiency and utilization of IT resources. Drive out cost and >> > improve service delivery. Take 5 minutes to use this Systems >> Optimization >> > Self Assessment. http://www.accelacomm.com/jaw/sdnl/114/51450054/ >> > _______________________________________________ >> > gumstix-users mailing list >> > gum...@li... >> > https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > >> > >> > >> > >> ------------------------------------------------------------------------------ >> > Systems Optimization Self Assessment >> > Improve efficiency and utilization of IT resources. Drive out cost and >> > improve service delivery. Take 5 minutes to use this Systems >> Optimization >> > Self Assessment. >> http://www.accelacomm.com/jaw/sdnl/114/51450054/_______________________________________________ >> > gumstix-users mailing list >> > gum...@li... >> > https://lists.sourceforge.net/lists/listinfo/gumstix-users >> >> >> >> ------------------------------------------------------------------------------ >> Cloud Computing - Latest Buzzword or a Glimpse of the Future? >> This paper surveys cloud computing today: What are the benefits? >> Why are businesses embracing it? What are its payoffs and pitfalls? >> http://www.accelacomm.com/jaw/sdnl/114/51425149/ >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > > |