Comment 0 for bug 1415880

The bcmwl package as of now misses one patch for a bug that occurs with BCM43142 and possibly other broadcom chipsets that will look like random disconnects, poor wifi signal and kernel warnings, See also #1379524.

Adding the patch is a fairly simple process:

* put the patch file in /usr/src/bcmwl-6.30.223.248+bdcom/patches
* add the following line to /usr/src/bcmwl-6.30.223.248+bdcom/dkms.conf
PATCH[7]="0014-null-pointer-crash.patch"
* run: /usr/lib/dkms/common.postinst bcmwl 6.30.223.248+bdcom /usr/share/bcmwl x86_64 $(uname -r)

This has fixed the issue for me.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu1 [modified: usr/src/bcmwl-6.30.223.248+bdcom/dkms.conf]
ProcVersionSignature: Ubuntu 3.16.0-29.39-generic 3.16.7-ckt2
Uname: Linux 3.16.0-29-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.7-0ubuntu8.1
Architecture: amd64
CurrentDesktop: LXDE
Date: Thu Jan 29 13:15:17 2015
InstallationDate: Installed on 2015-01-26 (3 days ago)
InstallationMedia: Lubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
SourcePackage: bcmwl
UpgradeStatus: No upgrade log present (probably fresh install)