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[Vincenzo Costa <cvincenzo16@xxxxxxxx>]

Here is the requested information

Ouput from the following commands:
--------------------------------------------------------------
lspci -vvnn | grep -A 9 Network

02:00.0 Network controller [0280]: Broadcom Corporation BCM43228 802.11a/b/g/n [14e4:4359]
        Subsystem: Dell Device [1028:0014]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 32 bytes
        Interrupt: pin A routed to IRQ 3
        Region 0: Memory at f7e00000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>

0b:00.0 SD Host controller [0805]: O2 Micro, Inc. Device [1217:8221] (rev 05) (prog-if 01)
--------------------------------------------------------------
lsb_release -rd

Description:    Ubuntu 14.04.1 LTS
Release:        14.04
--------------------------------------------------------------
uname -a

Linux leonardo 3.16.0-25-generic #33-Ubuntu SMP Fri Nov 7 01:53:40 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
--------------------------------------------------------------
sudo dmidecode -s bios-version

A10
--------------------------------------------------------------
sudo dmidecode -s bios-release-date

02/06/2013
--------------------------------------------------------------

Let me know if anything else is necessary to identify the problem cause.

-- 
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Packages, which is subscribed to bcmwl in Ubuntu.
https://bugs.launchpad.net/bugs/1397383

Title:
  Wireless interface Broadcom BCM43228 in Dell Latitude 5530 is not
  recognised with linux-generic-lts-utopic 3.16.0-25

Status in bcmwl package in Ubuntu:
  Incomplete

Bug description:
  I have a Dell latitude 5530 laptop with the Broadcom BCM43228 wireless card, and I currently run Kubuntu 14.04.1 LTS.
  It works ok with the 3.13.0-40 original linux kernel, but after installing the linux-generic-lts-utopic kernel (version 3.16-25) the wireless interface does not appear any more.

  - The command:  dmesg  |grep 'BCM' doesn't give any output concerning
  the wireless interface wlan0 or the BCM43228

  - The commands: iwconfig and ifconfig don't give output for wlan0

  - The kubuntu applet for network connections does not allow to switch
  the wireless network on

  It seems that the wireless network simply doesn't exist with the 3.16 kernel.
  Booting back with 3.13 kernel can fix the issue, so it's not a hardware problem.

  Here is my lspci output:

  00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
  00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
  00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
  00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
  00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
  00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
  00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
  00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
  00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4)
  00:1c.3 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 4 (rev c4)
  00:1c.5 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 6 (rev c4)
  00:1c.6 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 7 (rev c4)
  00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
  00:1f.0 ISA bridge: Intel Corporation HM77 Express Chipset LPC Controller (rev 04)
  00:1f.2 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 04)
  00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
  02:00.0 Network controller: Broadcom Corporation BCM43228 802.11a/b/g/n
  0b:00.0 SD Host controller: O2 Micro, Inc. Device 8221 (rev 05)
  0c:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5761 Gigabit Ethernet PCIe (rev 10)

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-generic-lts-utopic 3.16.0.25.19
  ProcVersionSignature: Ubuntu 3.13.0-40.69-generic 3.13.11.10
  Uname: Linux 3.13.0-40-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Fri Nov 28 17:35:37 2014
  InstallationDate: Installed on 2013-04-25 (581 days ago)
  InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423.1)
  SourcePackage: linux-meta-lts-utopic
  UpgradeStatus: Upgraded to trusty on 2014-04-18 (224 days ago)

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