14e4:4331 Broadcom BCM4331 unusable with Raring kernel 3.8.0-19

[aubergine]

I'm using a MacBookPro 8.1 with BCM4331 and it's linux driver b43.
After upgrading to Ubuntu Raring with kernel 3.8.0-19 my wirless network device is nearly unusable.

List of issues:
- After suspend the wireless network connection doesn't go online again. The known network isn't found without changing the distance to the wireless network router.
- Sometimes after reboot the wireless network connection doesn't go online without changing the distance or place
- iwlist scanning shows only 25% or less of all physical available networks. Wireless network performance is bad.

I'm using the old kernel 3.5.0-27 from Quantal Quetzal again and the wirless network is working fine again. None of the issues above are present.

---
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: username 2282 F.... pulseaudio
DistroRelease: Ubuntu 13.04
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=75279a36-a90a-4c40-9a0e-c440e5080a88
InstallationDate: Installed on 2012-11-26 (154 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MachineType: Apple Inc. MacBookPro8,1
MarkForUpload: True
Package: linux 3.8.0.19.35
PackageArchitecture: amd64
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-19-generic root=/dev/mapper/ubuntu-root ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8
RelatedPackageVersions:
 linux-restricted-modules-3.8.0-19-generic N/A
 linux-backports-modules-3.8.0-19-generic N/A
 linux-firmware 1.106
Tags: raring
Uname: Linux 3.8.0-19-generic x86_64
UpgradeStatus: Upgraded to raring on 2013-04-27 (2 days ago)
UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo video
dmi.bios.date: 01/24/12
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP81.88Z.0047.B27.1201241646
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-94245B3640C91C81
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro8,1
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-94245B3640C91C81
dmi.modalias: dmi:bvnAppleInc.:bvrMBP81.88Z.0047.B27.1201241646:bd01/24/12:svnAppleInc.:pnMacBookPro8,1:pvr1.0:rvnAppleInc.:rnMac-94245B3640C91C81:rvrMacBookPro8,1:cvnAppleInc.:ct10:cvrMac-94245B3640C91C81:
dmi.product.name: MacBookPro8,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1174347

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[aubergine (d-h)]

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[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.9 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.9-rc8-raring/

[aubergine (d-h)]

The upstream kernel doesn't fix this issues.

=> kernel-bug-exists-upstream

[penalvch (penalvch)]

aubergine, could you please test the latest mainline kernel via http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11-rc2-saucy/ and report the results?

[aubergine (d-h)]

Same issues with that kernel.

The latest kernel which works with my MacBook WLAN Card is: https://launchpad.net/ubuntu/precise/+source/linux-lts-quantal or all older kernel releases. This kernel is not affected by the Sandybridge bugs or WLAN bugs.

[penalvch (penalvch)]

aubergine, thank you for testing the newest mainline kernel. The next step would be to bisect from Quantal to Raing, in order to identify the commit that caused this regression. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection ?

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]