Public bug reported:
In the new kernel released today for Ubuntu 10.04, namely linux-
image-2.6.32-33-generic, wireless networking using 03:00.0 Network
controller: Intel Corporation Wireless WiFi Link 5300 on a Thinkpad T400
is broken. I can reliably document this by using the grub menu to boot
-32, which works, and -33 which does not. The wireless never comes on
and is unavailable in -33.
The problem appears to arise because the new kernel toggles the wireless
during startup. The old one does not. Here is an extract from a diff
between the messages output from the two kernels:
9c10
< Linux version 2.6.32-33-generic (buildd@yellow) (gcc version 4.4.3 (Ubuntu
4.4.3-4ubuntu5) ) #65-Ubuntu SMP Sun Jun 5 01:43:58 UTC 2011 (Ubuntu
2.6.32-33.65-generic 2.6.32.41+drm33.18)
This is the new broken version
---
> Linux version 2.6.32-32-generic (buildd@allspice) (gcc version 4.4.3 (Ubuntu
> 4.4.3-4ubuntu5) ) #62-Ubuntu SMP Wed Apr 20 21:52:38 UTC 2011 (Ubuntu
> 2.6.32-32.62-generic 2.6.32.38+drm33.16)
This is the old working version
Many diffs removed as probably irrelevant.
The following appear to pin down the bug.
> iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, 1.3.27k
> iwlagn: Copyright(c) 2003-2009 Intel Corporation
> iwlagn 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
> iwlagn 0000:03:00.0: Detected Intel Wireless WiFi Link 5300AGN REV=0x24
> iwlagn 0000:03:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
643c651,653
< ip6_tables: (C) 2000-2006 Netfilter Core Team
---
< iwlagn 0000:03:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
---
< iwlagn 0000:03:00.0: firmware: requesting iwlwifi-5000-5.ucode
< iwlagn 0000:03:00.0: firmware: requesting iwlwifi-5000-5.ucode
---
> iwlagn 0000:03:00.0: firmware: requesting iwlwifi-5000-2.ucode
> iwlagn 0000:03:00.0: loaded firmware version 8.24.2.12
> Registered led device: iwl-phy0::radio
> Registered led device: iwl-phy0::assoc
> Registered led device: iwl-phy0::RX
> Registered led device: iwl-phy0::TX
> ADDRCONF(NETDEV_UP): wlan0: link is not ready
< iwlagn 0000:03:00.0: RF_KILL bit toggled to disable radio.
< usb 4-2: USB disconnect, address 2
< iwlagn 0000:03:00.0: RF_KILL bit toggled to enable radio.
< iwlagn 0000:03:00.0: firmware: requesting iwlwifi-5000-5.ucode
---
> ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[Obviously I'm running the ubuntu-bug program with the old kernel.]
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-33-generic 2.6.32-33.65
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-32.62-generic 2.6.32.38+drm33.16
Uname: Linux 2.6.32-32-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
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: hutch 1722 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfc020000 irq 17'
Mixer name : 'Conexant CX20561 (Hermosa)'
Components : 'HDA:14f15051,17aa211c,00100000'
Controls : 14
Simple ctrls : 7
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw
7VHT12WW-1.01'
Mixer name : 'ThinkPad EC 7VHT12WW-1.01'
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: Wed Jun 8 22:32:00 2011
HibernationDevice: RESUME=UUID=ad2a231f-ecf5-45e2-bf66-e7d5ca70ffbe
MachineType: LENOVO 6474CTO
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcCmdLine: root=UUID=943edf75-1127-4e47-ae4f-e9ca07e1491f ro quiet splash
ProcEnviron:
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34.10
SourcePackage: linux
WpaSupplicantLog:
dmi.bios.date: 04/22/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7UET66WW (2.16 )
dmi.board.name: 6474CTO
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:bvr7UET66WW(2.16):bd04/22/2009:svnLENOVO:pn6474CTO:pvrThinkPadT400:rvnLENOVO:rn6474CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 6474CTO
dmi.product.version: ThinkPad T400
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug lucid needs-upstream-testing networking
regression-release
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https://bugs.launchpad.net/bugs/794814
Title:
Wireless networking is broken in 2.6.32-33
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