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[Bug 1189611] Re: bcmwl-kernel-source 6.30.223.30+bdcom-0ubuntu1 fails to see 5GHz networks and is unstable on 2.5GHz

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: "Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>
Date: Tue, 28 Oct 2014 02:31:23 -0000
Reply-to: Bug 1189611 <1189611@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Gao Shichao, thank you for your comment. So your hardware and problem may be tracked, could you please file a new report with Ubuntu by executing the following in a terminal while booted into the default Ubuntu kernel (not a mainline one) via:
ubuntu-bug bcmwl

For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

As well, please do not announce in this report you created a new bug
report.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

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https://bugs.launchpad.net/bugs/1189611

Title:
bcmwl-kernel-source 6.30.223.30+bdcom-0ubuntu1 fails to see 5GHz
networks and is unstable on 2.5GHz

Status in “bcmwl” package in Ubuntu:
Invalid

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

This chip is working perfectly fine on 2.5GHz and 5GHz using version
6.20.155.1+bdcom-0ubuntu6 of the driver.

After upgrading to saucy and installing version 6.30.223.30+bdcom-
0ubuntu1 it fails to find any 5GHz networks and connections on 2.5GHz
are unstable.

Downgrading the saucy machine to kernel 3.8.x and bcmwl-kernel-source
6.20.155.1+bdcom-0ubuntu6 (both from raring) makes the chip work
again.

Downgrading just the kernel to 3.8 and keeping bcmwl-kernel-source at
version 6.30.223.30+bdcom-0ubuntu1 does NOT fix the issue.

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

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