Thanks Christopher, down in the post is the needed information (though to open new bug with ubuntu-bug if it is better?):
apt-cache policy bcmwl-kernel-source bcmwl-kernel-source: Installed: (none) Candidate: 6.30.223.248+bdcom-0ubuntu1 Version table: 6.30.223.248+bdcom-0ubuntu1 0 500 http://bg.archive.ubuntu.com/ubuntu/ utopic/restricted amd64 Packages lspci -vvnn | grep -A 49 Network 10:00.0 Network controller [0280]: Broadcom Corporation BCM4311 802.11b/g WLAN [14e4:4311] (rev 01) Subsystem: Hewlett-Packard Company BCM4311 802.11b/g Wireless LAN Controller [103c:1364] 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: 64 bytes Interrupt: pin A routed to IRQ 17 Region 0: Memory at f4000000 (32-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=2 PME- Capabilities: [58] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Capabilities: [d0] Express (v1) Legacy Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited ExtTag+ AttnBtn- AttnInd- PwrInd- RBE- FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s, Exit Latency L0s <4us, L1 <64us ClockPM- Surprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- Capabilities: [100 v1] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn- Capabilities: [13c v1] Virtual Channel Caps: LPEVC=0 RefClk=100ns PATEntryBits=1 Arb: Fixed- WRR32- WRR64- WRR128- Ctrl: ArbSelect=Fixed Status: InProgress- VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans- Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256- Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01 Status: NegoPending- InProgress- Kernel driver in use: b43-pci-bridge lsb_release -rd Description: Ubuntu 14.10 Release: 14.10 uname -a Linux Beatles 3.16.0-28-generic #38-Ubuntu SMP Fri Dec 12 17:37:40 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux dmidecode -s bios-version 68YGU Ver. F.0A dmidecode -s bios-release-date 12/18/2006 The full manufacturer and model of your computer as noted on the sticker of the computer itself. Compaq nx7400 rh674es#abb -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bcmwl in Ubuntu. https://bugs.launchpad.net/bugs/1407522 Title: bcmwl package was sugested by KDE driver manager but broke the system Status in bcmwl package in Ubuntu: Incomplete Bug description: On fresh 14.10 install on the first GUI run in KDE the KDE Driver Manager suggested installation of bcmwl-kernel-source (see attached screenshot)for my Broadcom Corporation BCM4311. After successful installation of the package and restart, my system got Jan 4 23:32:13 Beatles kernel: [ 19.485177] wl driver 6.30.223.248 (r487574) failed with code 21 Jan 4 23:32:13 Beatles kernel: [ 19.485208] ------------[ cut here ]------------ Jan 4 23:32:13 Beatles kernel: [ 19.485242] kernel BUG at include/net/cfg80211.h:3343! full description of the message in attached file (syslog_extracted.log). For some reason this also affects the driver for my NIC and my laptop got out of any possible network connection. So instead of configuring the wireless card it left me with only "lo" interface :(. I would expect properly configured modules for WAN and LAN.... Luckily apt-get remove --purge bcmwl-kernel-source restores the previous state so I can submit this bug via LAN. Now I'm running Ubuntu 14.10 but the same happened half an year ago when I tried to install 14.04 on this laptop. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: bcmwl-kernel-source (not installed) ProcVersionSignature: Ubuntu 3.16.0-28.38-generic 3.16.7-ckt1 Uname: Linux 3.16.0-28-generic x86_64 ApportVersion: 2.14.7-0ubuntu8 Architecture: amd64 CurrentDesktop: KDE Date: Mon Jan 5 01:00:26 2015 SourcePackage: bcmwl UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1407522/+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