Public bug reported:
Ad Hoc wlan (hotspot) is completely broken for linux-
image-3.2.0-27-generic at least on my particular hardware. The bug
report says -24 because ubuntu-bug didn't allow me to edit that and I'm
running -24 as a workaround. No problem there.
Adapter is 03:00.0 Network controller: Intel Corporation Centrino
Advanced-N 6205 (rev 34)
Snippet of syslog representative of the problem, under -27:
Jul 27 22:47:31 t420s-4 wpa_supplicant[1752]: Trying to associate with SSID
't420s-4'
Jul 27 22:47:31 t420s-4 kernel: [ 92.126605] iwlwifi 0000:03:00.0: L1
Enabled; Disabling L0S
Jul 27 22:47:31 t420s-4 kernel: [ 92.126821] iwlwifi 0000:03:00.0: Radio
type=0x1-0x2-0x0
Jul 27 22:47:31 t420s-4 wpa_supplicant[1752]: nl80211: Failed to set interface
into IBSS mode
Jul 27 22:47:31 t420s-4 wpa_supplicant[1752]: Association request to the driver
failed
Jul 27 22:47:31 t420s-4 kernel: [ 92.250848] ADDRCONF(NETDEV_UP): wlan0: link
is not ready
Jul 27 22:47:41 t420s-4 wpa_supplicant[1752]: Authentication with
00:00:00:00:00:00 timed out.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-24-generic 3.2.0-24.39
ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
Uname: Linux 3.2.0-24-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu11
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: mjrauhal 2794 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf1620000 irq 50'
Mixer name : 'Intel CougarPoint HDMI'
Components : 'HDA:14f1506e,17aa21d2,00100002
HDA:80862805,80860101,00100000'
Controls : 26
Simple ctrls : 8
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw
unknown'
Mixer name : 'ThinkPad EC (unknown)'
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]
CurrentDmesg:
Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg
-'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
dmesg: write failed: Broken pipe
Date: Fri Jul 27 23:31:57 2012
MachineType: LENOVO 4173L7G
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-24-generic
root=/dev/mapper/t420s--4-root ro quiet splash vt.handoff=7
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
dmi.bios.date: 09/14/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 8CET49WW (1.29 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4173L7G
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:bvr8CET49WW(1.29):bd09/14/2011:svnLENOVO:pn4173L7G:pvrThinkPadT420s:rvnLENOVO:rn4173L7G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4173L7G
dmi.product.version: ThinkPad T420s
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise
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https://bugs.launchpad.net/bugs/1030123
Title:
Ad-Hoc wlan broken
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