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[Dmitry Antonov <dantonov@xxxxxxxxx>]

Ubuntu 13.10 and laptop HP Compaq nx6310 (
$ lspci -vvnn | grep 14e4
02:0e.0 Ethernet controller [0200]: Broadcom Corporation BCM4401-B0 100Base-TX [14e4:170c] (rev 02)
08:00.0 Network controller [0280]: Broadcom Corporation BCM4311 802.11b/g WLAN [14e4:4311] (rev 01)
) 
I use:

sudo apt-get remove bcmwl-kernel-source
sudo apt-get install firmware-b43-installer

Of cause "install" needs internet connection, I use cheap usb-wifi-mini-
stick (RTL8188CUS 802.11n WLAN Adapter).

-- 
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https://bugs.launchpad.net/bugs/1113779

Title:
  14e4:170c Broadcom bcm4401-b0 network card no longer functional

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  This actually happedned when I did an upgrade to 3.2.0-36-generic
  about a week ago.  The network card was working fine until I rebooted
  after the update.  Now to get internet access on this machine I have
  had to use a pcmcia network card.  It appears though I have been
  unable to confirm this, that the bcmlw update blacklisted all broadcom
  drivers.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-37-generic 3.2.0-37.58
  ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35
  Uname: Linux 3.2.0-37-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.1
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  tom        9780 F.... pulseaudio
   /dev/snd/pcmC0D0p:   tom        9780 F...m pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xefebc000 irq 42'
     Mixer name	: 'SigmaTel STAC9200'
     Components	: 'HDA:83847690,102801d4,00102201 HDA:14f12bfa,14f100c3,00090000'
     Controls      : 14
     Simple ctrls  : 7
  Date: Sat Feb  2 13:17:39 2013
  HibernationDevice: RESUME=UUID=bb8dbb09-d641-48d1-a1ca-e4f9296956e5
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  MachineType: Dell Inc. Latitude D520
  MarkForUpload: True
  PccardctlStatus:
   Socket 0:
     5.0V
    16-bit
    PC Card
     Subdevice 0 (function 0) bound to driver "axnet_cs"
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic root=UUID=98c0e985-6278-48f4-832d-b54216f77312 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-37-generic N/A
   linux-backports-modules-3.2.0-37-generic  N/A
   linux-firmware                            1.79.1
  SourcePackage: linux
  UpgradeStatus: Upgraded to precise on 2013-01-30 (2 days ago)
  dmi.bios.date: 10/13/2006
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A02
  dmi.board.name: 0NF743
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA02:bd10/13/2006:svnDellInc.:pnLatitudeD520:pvr:rvnDellInc.:rn0NF743:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Latitude D520
  dmi.sys.vendor: Dell Inc.

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