Comment 0 for bug 1387221

Revision history for this message
Michael Zanetti (mzanetti) wrote : bcmwl-kernel-source >= fails to see 5GHz networks and is unstable on 2.5GHz

Hardware: Broadcom Corporation BCM4331 802.11a/b/g/n (rev 02)

This chip is working perfectly fine on 2.5GHz and 5GHz using version of the driver.

After upgrading to saucy or any newer version and installing version >= it fails to find any 5GHz networks and connections on 2.5GHz are unstable.

Downgrading the machine to kernel 3.8.x and bcmwl-kernel-source (both from raring) makes the chip work again.
UPDATE: Up to kernel 3.13.0-23 a patched working package of bcmwl-kernel-source can be found in the comments of this bug report:
Currently there is no way to have utopic with an up to date kernel and properly working BCM4331 chip at the same time.

Looking at the changelog its most likely caused by the update to the new upstream release in version

As of utopic unicorn this is still broken.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: bcmwl-kernel-source
ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
Uname: Linux 3.16.0-23-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Oct 29 15:26:09 2014
InstallationDate: Installed on 2012-11-10 (717 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Beta amd64+mac (20120926)
SourcePackage: bcmwl
UpgradeStatus: Upgraded to utopic on 2013-10-22 (372 days ago)