Linux - Wireless NetworkingThis forum is for the discussion of wireless networking in Linux.
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
The wireless card in my Acer netbook locks up the entire system when attempting to connect to a wireless network (or at other seemingly random times in the boot process, or during normal use). I have tried several different distributions/kernels and two different wireless cards. The stock card is a Broadcom BCM4313, and my new card is an Intel 6200.
I'm currently using Lubuntu 11.10 with kernel 3.0.0-12. Running modprobe shows Intel's iwlagn.ko module (or the Broadcom module when that card is in). In one instance last night I was able to boot, view the available wireless networks, connect to a wireless network, disconnect from ethernet, and ping Google (successfully) for about fifteen seconds before the system locked up. No combination of antenna connections inside the netbook (the black and white connections to the MAIN/AUX ports) results in any significant difference.
Other posts on Google show many users with similar issues, along with some scattered recommendations -- disabling power saving mode, installing netcfg, and leaving eth0 connected while using the wireless card. None of these workarounds accurately address the problem.
What other options do I have for identifying the actual cause of the freezes and finding a proper solution?
P.S. Unfortunately, the wireless on this netbook works just fine (with either card) in Redmond's latest offering.
Last edited by willroberts; 11-04-2011 at 08:49 AM.
This may sound silly, but a fix I found on the archlinux boards was to press F2 while booting and change your boot priority to make network booting the first option, and then your usb or hard drive, whichever you want. Then, for reasons unknown to me, wireless should not cause the whole machine to freeze up.
I'm actually having the same problem, and I just got mine yesterday. It doesn't appear to effect Windows 7 though...
Anyway, Have you tried updating the BIOS? If a workaround is editing the BIOS, it just may be a BIOS bug. I haven't tried it yet, as I've never flashed a BIOS before.
So, I'm running BIOS v1.06. The current version of as of this writing is 1.07. Turns out Acer does NOT have any real changelog to their BIOS updates. However, I did find a workaround. You have to go into the BIOS and ENABLE network booting and set it FIRST in the boot order. I also have USB HDD 2nd the boot order followed by my HDD. I know this works because I'm writing this post from Lubuntu 11.10 connected through my home wireless network on my AO722 netbook. My best guess is either a BIOS bug, or a bad ethernet controllers/firmware from Astheros. Either way, it's beyond me from here.
I still have no idea whether or not the new BIOS will render this workaround irrelevant, but somehow I doubt it. Hope this helps out anyone else who is having this problem.
I'm likely to be getting a half-sized mini PCIe card with better driver support to replace this one, and in the meantime using a working full-size mini PCIe card taped down so it doesn't slip out of the spot. If a BIOS upgrade does indeed fix the issue, I'd be interested to hear about it.
Just wanted to let everybody know that this bug still persists on the Acer Aspire One 722 with current BIOS firmware version 1.08 and Slackware running Kernel 3.2.23. However, the workaround with activating network boot and putting it first in bootup list still applies and wifi will work after that.