I'm having the same issue. My laptop is Dell XPS 13 (9343) with Ubuntu
16.04 and a kernel version 4.4.0-31. lshw -c network would give me the
output "*-network UNCLAIMED".

You received this bug notification because you are a member of Kernel
Packages, which is subscribed to bcmwl in Ubuntu.

  bcmwl driver does not work with kernel 4.4.0-21 when secure boot

Status in bcmwl package in Ubuntu:

Bug description:
  After updating ubuntu 16.04 to latest kernel 4.4.0-21, bcmwl driver
  (package bcmwl-kernel-source) does not load and wifi not work.

  sudo modprobe wl
  modprobe: ERROR: could not insert 'wl': Required key not available

  If I boot with kernel 4.4.0-18 - bcmwl loads normally and wifi works.

  If secure boot disabled - bcmwl loads normally with kernel 4.4.0-21
  and wifi works.

  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 16.04
  InstallationDate: Installed on 2015-12-02 (140 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  NonfreeKernelModules: wl
  Package: bcmwl-kernel-source
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Tags:  xenial
  Uname: Linux 4.4.0-18-generic x86_64
  UpgradeStatus: Upgraded to xenial on 2016-03-03 (47 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True

To manage notifications about this bug go to:

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

Reply via email to