Not detecting any networks

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Not detecting any networks

Postby blenderbug on Sat Sep 21, 2013 5:09 pm

hello, I've searched too many forums and I dont know why this has been such an issue for me.
HP compaq nx7300
I'm using linux mint NAdia with MAte. (I had the same issue with Ubuntu 12.04)
I've already enabled my wireless driver in 'software sources' and still nothing is showing up.
The wireless switch on the laptop does not light up(works in windows) and ethernet port works fine.

Code: Select all
~$ inxi -N
Network:   Card-1: Broadcom BCM4401-B0 100Base-TX driver: b44
           Card-2: Broadcom BCM4311 802.11b/g WLAN driver: b43-pci-bridge
~$ /usr/lib/linuxmint/mintWifi/mintWifi.py
-------------------------
* I. scanning WIFI PCI devices...
  -- Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01)
      ==> PCI ID = 14e4:4311 (rev 01)
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
lo        no wireless extensions.

eth0      no wireless extensions.

-------------------------
* IV. querying ifconfig...
eth0      Link encap:Ethernet  HWaddr 00:17:a4:e1:eb:d0 
          inet addr:172.16.104.27  Bcast:172.16.104.255  Mask:255.255.255.0
          inet6 addr: fe80::217:a4ff:fee1:ebd0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:12793 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8778 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:12767375 (12.7 MB)  TX bytes:1390777 (1.3 MB)
          Interrupt:16

lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:610 errors:0 dropped:0 overruns:0 frame:0
          TX packets:610 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:62553 (62.5 KB)  TX bytes:62553 (62.5 KB)

any help is appreciated let me know if you need more info
blenderbug
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Re: Not detecting any networks

Postby karlchen on Sat Sep 21, 2013 5:44 pm

Hello, blenderbug.

I understand that the wifi adapter does not work: Card-2: Broadcom BCM4311 802.11b/g WLAN driver: b43-pci-bridge.

But what about the wired ethernet adapter: Card-1: Broadcom BCM4401-B0 100Base-TX driver: b44 ? Can you use this ethernet adapter to connect your machine to your DSL router thus connecting the machine to the internet?
This would be very helpful, because it will be necessary to get the appropriate proprietary Broadcom driver software which supports your wifi adapter from the internet.
Which driver exactly, I admit, I will have to look that up, because each Broadcom adapter needs a different driver. But I am dead certain that even in this forum, there are threads which tell which driver is needed for Broadcom BCM4311 802.11b/g and how to download and install it.

How to Install Broadcom Wireless Drivers

Ubuntu WifiDocs/Driver/bcm43xx

Broadcom BCM4311

Kind regards,
Karl
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Re: Not detecting any networks

Postby blenderbug on Sat Sep 21, 2013 7:41 pm

yes I have internet via ethernet port right now.
i've tried this: http://community.linuxmint.com/tutorial/view/379
without avail
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Re: Not detecting any networks

Postby karlchen on Sun Sep 22, 2013 11:05 am

Hello, blenderbug.

Very likely following the tutorial failed for the simple reason
+ that the author of the turorial seems to assume no driver software for the BCM4311 wifi adapter is in use
+ so he does not instruct you to uninstall it first
+ but in your case a driver is in use, b43-pci-bridge, but seems to malfunction
+ as a consequence adding yet another driver does not succeed.

In such cases where wifi adapter cause trouble in the Ubuntu forums users are frequently recommended
+ to download a script named wireless_script
+ run the script
+ upload the resulting logfile wireless_info.txt to ubuntu.pastebin.com
+ post the pastebin link

  • The script wireless_script performs quite a long list of checks and logs them to the logfile wireless_info.txt which help find out why a wifi adpater does not work.
  • Linux Mint brings along mintWifi. mintWifi checks only very few details. Therefore its output is much less enlightening than the logfile generated by wireless_script. Yet, there are 3 or 4 things that mintWifi checks which are not checked by wireless_script.
  • Therefore I merged these 3 or 4 missing queries from mintWifi into wireless_script and named the resulting script wireless_script_xtd.sh - wirless_script extended.


So in order to find out why your BCM4311 does not function properly I suggest to proceed like this:

  • Download the attached little archive file wireless_script_xtd.zip and extract the script wireless_script_xtd.sh from it and save it in your home folder.
  • Check its content in order to verify that no-one is trying to make you run destructive code on your machine. (You do not have to trust me. Check it.)
  • Next make the script executable:
    Code: Select all
    chmod +x ~/wireless_script_xtd.sh
  • Run it:
    Code: Select all
    cd
    ./wireless_script_xtd.sh
    The script will ask for your password once. The reason is that some of the commands need to run using sudo.
    The script may take a few seconds before it tells you it has created the file wireless_info.txt.
  • The file wireless_info.txt will be located in the same folder from which you launched wireless_script_xtd.sh.
    Inspect the file and camouflage any confidential detail which the script may have failed to camouflage.
  • Upload the file wireless_info.txt to http://www.pastebin.com. Once you have uploaded it there. The address bar of your browser will change from http://www.pastebin.com to something like http://pastebin.com/7tEfFaqp. Post the corresponding address in your reply.

Kind regards,
Karl
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