Arch Linux

Basomis

Member

Registered: 2013-08-03

Posts: 15

Broadcam BCM4312

After installing archlinux been dealing with wi-fi issues. My card's PCI-ID is 4312 so I have installed b43-firmware and b43-firmware-legacy. On my laptop it shows that wi-fi is detected but I cannot connect to it. How do I resolve it?

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,354

Re: Broadcam BCM4312

Before I send you off to the wiki, let's do a quick sanity check.

Try the command sudo iwconfig
If the command exists. it should show a list of all access points within range.  If the command does not exist, run the command ip link to find the name of your network interfaces.  Then, run the command
sudo iw wlan0 scan    (Assuming your wireless network is called wlan0 -- refer to the output of ip link to discover your wireless network name)  Does the iw command show your Access Point?

What type of security is your AP?  Open? WEP? WPA? WPA2?

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Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
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How to Ask Questions the Smart Way

WonderWoofy

Member

From: Los Gatos, CA

Registered: 2012-05-19

Posts: 8,414

Re: Broadcam BCM4312

Just so you know ewaller, neither the iw package or the wireless_tools package is in base.  So in order for either of those to exist on the OP's machine, they would have to be explicitly installed.

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,354

Re: Broadcam BCM4312

$DEITY, I need to go back and do an install from scratch; it has been a while.  I knew that iwconfig is depricated.  It is too bad as it is a simple command to run.  I never imagined that iw is not in core.  BTW, I'll take your word for it; I'm not in the mood to go do research.  I've been rather captivated for the last couple days learning to write browser extensions.

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Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

Basomis

Member

Registered: 2013-08-03

Posts: 15

Re: Broadcam BCM4312

Before I send you off to the wiki, let's do a quick sanity check.

Try the command sudo iwconfig
If the command exists. it should show a list of all access points within range.  If the command does not exist, run the command ip link to find the name of your network interfaces.  Then, run the command
sudo iw wlan0 scan    (Assuming your wireless network is called wlan0 -- refer to the output of ip link to discover your wireless network name)  Does the iw command show your Access Point?

What type of security is your AP?  Open? WEP? WPA? WPA2?

sudo iwconfig prints:

wlan0     IEEE 802.11bg  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          
lo        no wireless extensions.

enp7s0    no wireless extensions.

Yes, iw shows my Access Point which has WPA security type.

WonderWoofy

Member

From: Los Gatos, CA

Registered: 2012-05-19

Posts: 8,414

Re: Broadcam BCM4312

Ooohhh... what kind of extensions?  What browser?

BTW, it doesn't really take research.  I had a hunch that they weren't, so I just did "pacman -Qi iw wireless_tools" and looked at the "Groups:" line.

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,354

Re: Broadcam BCM4312

Ooohhh... what kind of extensions?  What browser?

At the risk of hijacking the thread (in other words, let's keep this short) I am playing with Chomium creating page_actions to change the behavior of my favorite site, bbs.archlinux.org   I am making the back button work as I expect (things I've read are marked correctly when I use the back button).  I am also putting some BBCode and commonly referenced URLs (Forum Etiquette) links in a drop down from an Icon on the Arch Forum tab.

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Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

sekret

Member

Registered: 2013-07-22

Posts: 291

Re: Broadcam BCM4312

@Basomis, I have a Broadcom BCM4313, so it's not exactly the same card you have. But I suggest, that you DON'T use this b43-firmware and b43-firmware-legacy, but let the kernel load the driver.

How do you make your connection (or try to)? Do you use netctl? What does your profile look like?

Basomis

Member

Registered: 2013-08-03

Posts: 15

Re: Broadcam BCM4312

Finally, it works. However, another issue that I'm facing right now is that available wifi connections dissapear (except the one I'm currently connecting) from nm-applet after 5 minutes of being logged in.