The fix just hit Linus's tree, and quantal will get it in the rebase to 3.5-rc3. Attaching backport for precise.
** Description changed: + == SRU Justification == + + Impact: Macbook Pro models with BCM4331 wireless will be unable to + transmit wireless data following S3 if resumed without external power + attached. + + Fix: Add workaround to BCMA to reinitialize the ext_pa pin muxings after + S3. + + Test case: Suspend an affected machine, then resume it without A/C + power. Observe that without this patch the wireless fails to work + afterwards, whereas with the patch the wireless does work. + + --- + When the machine is suspended without external power attached, after being resumed the wireless is unable to associate. Analysis with wireshark shows that no frames are being transmitted by the laptop when this happens, although it is able to receive frames as it can successfully scan. The problem can be fixed by unloading both the b43 and bcma modules and reloading them; unloading and reloading b43 by itself is not enough to fix the issue. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-12-generic 3.2.0-12.21 ProcVersionSignature: Ubuntu 3.2.0-12.21-generic 3.2.2 Uname: Linux 3.2.0-12-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.91-0ubuntu1 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC1: ubuntu 1743 F.... pulseaudio - /dev/snd/controlC0: ubuntu 1743 F.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC1: ubuntu 1743 F.... pulseaudio + /dev/snd/controlC0: ubuntu 1743 F.... pulseaudio Card0.Amixer.info: - Card hw:0 'PCH'/'HDA Intel PCH at 0xb0900000 irq 47' - Mixer name : 'Cirrus Logic CS4206' - Components : 'HDA:10134206,106b1d00,00100302' - Controls : 24 - Simple ctrls : 10 + Card hw:0 'PCH'/'HDA Intel PCH at 0xb0900000 irq 47' + Mixer name : 'Cirrus Logic CS4206' + Components : 'HDA:10134206,106b1d00,00100302' + Controls : 24 + Simple ctrls : 10 Card1.Amixer.info: - Card hw:1 'Generic'/'HD-Audio Generic at 0xb0840000 irq 48' - Mixer name : 'ATI R6xx HDMI' - Components : 'HDA:1002aa01,00aa0100,00100200' - Controls : 6 - Simple ctrls : 1 + Card hw:1 'Generic'/'HD-Audio Generic at 0xb0840000 irq 48' + Mixer name : 'ATI R6xx HDMI' + Components : 'HDA:1002aa01,00aa0100,00100200' + Controls : 6 + Simple ctrls : 1 Card1.Amixer.values: - Simple mixer control 'IEC958',0 - Capabilities: pswitch pswitch-joined penum - Playback channels: Mono - Mono: Playback [on] + Simple mixer control 'IEC958',0 + Capabilities: pswitch pswitch-joined penum + Playback channels: Mono + Mono: Playback [on] Date: Thu Feb 2 10:49:26 2012 HibernationDevice: RESUME=UUID=13594e7c-281a-4c68-afc8-7ef8aae830c9 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64+mac (20111208) MachineType: Apple Inc. MacBookPro8,2 ProcEnviron: - PATH=(custom, no user) - LANG=en_US.UTF-8 - SHELL=/bin/bash + PATH=(custom, no user) + LANG=en_US.UTF-8 + SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-12-generic root=UUID=b914ccd7-a73e-4a8b-97b2-4b23a1d3d39c ro acpi_backlight=vendor quiet splash vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-3.2.0-12-generic N/A - linux-backports-modules-3.2.0-12-generic N/A - linux-firmware 1.68 + linux-restricted-modules-3.2.0-12-generic N/A + linux-backports-modules-3.2.0-12-generic N/A + linux-firmware 1.68 SourcePackage: linux StagingDrivers: mei UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/28/11 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP81.88Z.0047.B22.1109281426 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-94245A3940C91C80 dmi.board.vendor: Apple Inc. dmi.board.version: MacBookPro8,2 dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-94245A3940C91C80 dmi.modalias: dmi:bvnAppleInc.:bvrMBP81.88Z.0047.B22.1109281426:bd09/28/11:svnAppleInc.:pnMacBookPro8,2:pvr1.0:rvnAppleInc.:rnMac-94245A3940C91C80:rvrMacBookPro8,2:cvnAppleInc.:ct10:cvrMac-94245A3940C91C80: dmi.product.name: MacBookPro8,2 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. ** Patch added: "0001-bcma-add-ext-PA-workaround-for-BCM4331-and-BCM43431.patch" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/925577/+attachment/3189844/+files/0001-bcma-add-ext-PA-workaround-for-BCM4331-and-BCM43431.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/925577 Title: [MacBook Pro 8,2] Wireless cannot associate after s3 with no external power (BCM4331) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/925577/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
