14e4:432b Ubuntu 10.10 - Wireless packet loss using Broadcom STA driver on Macbook Pro 5,2

[Mitch Lin]

I recently installed Ubuntu 10.10 (alt install) as a second partition on my Macbook Pro (5,2). After installation, I went to System->Adminstration->Additional Drivers and activated my NVIDIA accelerated graphics driver (version current) as well as the Broadcom STA wireless driver.

Rebooted, both worked, but I noticed that my connection was intermittent at best. Web pages were timing out, SSH sessions were spotty, and updating Ubuntu (the download portion) took over an hour ( ~ 100 packages).

I pinged google for a while:

--- google.com ping statistics ---
216 packets transmitted, 173 received, 19% packet loss, time 240438ms
rtt min/avg/max/mdev = 20.316/68.300/205.230/49.727 ms

Here's yahoo:

--- yahoo.com ping statistics ---
246 packets transmitted, 224 received, 8% packet loss, time 385430ms
rtt min/avg/max/mdev = 33.256/59.871/334.379/48.785 ms

All other wireless devices do not have this issue, and when I boot into OSX, the wireless card works perfectly (transfer speeds are useful/reliable with no packet loss).

Let me know if you need more information.

Thanks!
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: paku 1847 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'NVidia'/'HDA NVidia at 0xdf480000 irq 21'
   Mixer name : 'Realtek ALC889A'
   Components : 'HDA:10ec0885,106b4600,00100103'
   Controls : 36
   Simple ctrls : 20
DistroRelease: Ubuntu 10.10
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=4c27303f-0e48-4756-8b18-71b792823a58
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: Apple Inc. MacBookPro5,2
NonfreeKernelModules: nvidia wl
Package: linux (not installed)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=7e713b3d-9e70-460a-9e2a-59dde79f2ab3 ro quiet splash
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.utf8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4
Regression: No
RelatedPackageVersions: linux-firmware 1.38
Reproducible: Yes
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
Tags: maverick kernel-net needs-upstream-testing
Uname: Linux 2.6.35-22-generic i686
UserGroups:

dmi.bios.date: 05/04/09
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP52.88Z.008E.B05.0905042202
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-F2268EC8
dmi.board.vendor: Apple Inc.
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 8
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F2268EC8
dmi.modalias: dmi:bvnAppleInc.:bvrMBP52.88Z.008E.B05.0905042202:bd05/04/09:svnAppleInc.:pnMacBookPro5,2:pvr1.0:rvnAppleInc.:rnMac-F2268EC8:rvr:cvnAppleInc.:ct8:cvrMac-F2268EC8:
dmi.product.name: MacBookPro5,2
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

[Fabio Marconi (fabiomarconi)]

Hello Paku
can you please run in a terminal
apport collect -p linux
Thanks
Fabio

[Mitch Lin (mitchthelin)]

apport information

[Mitch Lin (mitchthelin)]

apport information

[Mitch Lin (mitchthelin)]

apport information

[Mitch Lin (mitchthelin)]

apport information

[Mitch Lin (mitchthelin)]

apport information

[Mitch Lin (mitchthelin)]

apport information

[Mitch Lin (mitchthelin)]

apport information

[Mitch Lin (mitchthelin)]

apport information

[Mitch Lin (mitchthelin)]

apport information

[Mitch Lin (mitchthelin)]

apport information

[Fabio Marconi (fabiomarconi)]

Hello paku
Thanks for the support
Fabio

[Mitch Lin (mitchthelin)]

Is there anything else I can provide that would help debug this issue?

[Mitch Lin (mitchthelin)]

Another note:

When the machine is suspended, or if I unplug the laptop while the screen is locked, eight times out of ten I will have to reboot to get the wireless card to connect to my network.

[penalvch (penalvch)]

Mitch Lin, thank you for reporting this and helping make Ubuntu better. Maverick reached EOL on April 10, 2012.
Please see this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We were wondering if this is still an issue in a supported release? If so, can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command in a supported release from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux <replace-with-bug-number>

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please do not test the kernel in the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. As well, please comment on which kernel version specifically you tested.

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', and comment as to why specifically you were unable to test it.

Please let us know your results. Thanks in advance.

Helpful Bug Reporting Links:
https://help.ubuntu.com/community/ReportingBugs#Bug_Reporting_Etiquette
https://help.ubuntu.com/community/ReportingBugs#A3._Make_sure_the_bug_hasn.27t_already_been_reported
https://help.ubuntu.com/community/ReportingBugs#Adding_Apport_Debug_Information_to_an_Existing_Launchpad_Bug
https://help.ubuntu.com/community/ReportingBugs#Adding_Additional_Attachments_to_an_Existing_Launchpad_Bug

[Launchpad Janitor (janitor)]

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