Public bug reported:
When connected to a 11n network the connection sometimes stops transmitting
data even though the LED still shows activity (11g seems to work fine). Looking
at dmesg, I was connected to the network at [28608.093704], shortly after that
the connection stopped working. Pining the router during that time shows:
$ ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
>From 192.168.1.100 icmp_seq=2 Destination Host Unreachable
>From 192.168.1.100 icmp_seq=3 Destination Host Unreachable
>From 192.168.1.100 icmp_seq=6 Destination Host Unreachable
>From 192.168.1.100 icmp_seq=9 Destination Host Unreachable
>From 192.168.1.100 icmp_seq=12 Destination Host Unreachable
>From 192.168.1.100 icmp_seq=15 Destination Host Unreachable
>From 192.168.1.100 icmp_seq=17 Destination Host Unreachable
>From 192.168.1.100 icmp_seq=18 Destination Host Unreachable
>From 192.168.1.100 icmp_seq=21 Destination Host Unreachable
>From 192.168.1.100 icmp_seq=24 Destination Host Unreachable
>From 192.168.1.100 icmp_seq=29 Destination Host Unreachable
>From 192.168.1.100 icmp_seq=32 Destination Host Unreachable
^C
--- 192.168.1.1 ping statistics ---
34 packets transmitted, 0 received, +12 errors, 100% packet loss, time 33115ms
at [29186.869478] I reloaded the kernel module and the connection works
again.
Here it happened shortly after waking up from suspend but it happened
already independent of that and happens since the last 2 or 3 kernels.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-23-generic 3.2.0-23.36
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu2
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: yofel 2714 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf2420000 irq 45'
Mixer name : 'Conexant CX20585'
Components : 'HDA:14f15069,17aa218b,00100302'
Controls : 9
Simple ctrls : 6
Card1.Amixer.info:
Card hw:1 'NVidia'/'HDA NVidia at 0xcdefc000 irq 16'
Mixer name : 'Nvidia ID b'
Components : 'HDA:10de000b,10de0101,00100100'
Controls : 0
Simple ctrls : 0
Card1.Amixer.values:
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw
6MHT43WW-1.18'
Mixer name : 'ThinkPad EC 6MHT43WW-1.18'
Components : ''
Controls : 1
Simple ctrls : 1
Card29.Amixer.values:
Simple mixer control 'Console',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Date: Fri Apr 13 23:24:41 2012
HibernationDevice: RESUME=UUID=e1dde51e-11e5-484c-8d86-c9cfdcdbf4c3
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20111007)
MachineType: LENOVO 4349W1R
ProcEnviron:
SHELL=/bin/bash
TERM=screen
PATH=(custom, user)
LANG=en_US.UTF-8
LANGUAGE=en_US.UTF-8
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.2.0-23-generic
root=UUID=238190c9-6304-41fe-892a-28596720e11b ro rootflags=subvol=@ splash
vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-23-generic N/A
linux-backports-modules-3.2.0-23-generic N/A
linux-firmware 1.79
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/26/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6MET81WW (1.41 )
dmi.board.name: 4349W1R
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr6MET81WW(1.41):bd10/26/2010:svnLENOVO:pn4349W1R:pvrThinkPadT510:rvnLENOVO:rn4349W1R:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4349W1R
dmi.product.version: ThinkPad T510
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise staging
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https://bugs.launchpad.net/bugs/981187
Title:
wireless instability on intel Centrino Ultimate-N 6300 (rev 35) using
11n
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