In a forum where I partecipate we solved the problem. We found that the problem is caused about a file called "blacklist-bcm43.conf" that put all the broadcom driver in blacklist after the installation (that no happened during live cd session). This is the cause of the issue.
You have to move this file from /etc/modprobe.d and reboot, later network card works fine. This is the content of /etc/modprobe.d/blacklist-bcm43.conf *** paola@paola-Inspiron-1520:/etc/modprobe.d$ cat blacklist-bcm43.conf # Warning: This file is autogenerated by bcmwl. All changes to this file will be lost. blacklist b43 blacklist b43legacy blacklist ssb blacklist bcm43xx blacklist brcm80211 blacklist brcmfmac blacklist brcmsmac blacklist bcma blacklist b44 install wl modprobe -r b43 b44 b43legacy ssb; modprobe --ignore-install wl ; modprobe --ignore-install b44 *** Can see that all broadcom are blacklisted. I solved moving this file to Desktop and after a reboot the network card works fine. >From terminal I used command "mv" to move the file to Desktop: *** paola@paola-Inspiron-1520:~$ sudo mv /etc/modprobe.d/blacklist-bcm43.conf /home/paola/Scrivania *** And after a reboot the network card works. We talk about this problem on this thread: http://www.linux-magazine.it/forum/index.php/topic,15933.msg53955.html#msg53955 but it's only in italian, I'm sorry. I hope that solution works for other people that have this problem. I dont know how this thread works, but if is possible someone report this solution and what is the problem to whom it may concern. Thank you. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1113779/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
