Public bug reported:
If started in hotspot mode, WiFi is not visible to mobile device.
dmesg near the start of ad-hoc (hotspot) mode:
[ 8433.456955] wlan0: Creating new IBSS network, BSSID 46:d7:d8:59:f3:53
[ 8433.496119] iwlwifi 0000:03:00.0: Unable to find TIM Element in beacon
[ 8433.497087] iwlwifi 0000:03:00.0: Unable to find TIM Element in beacon
[ 8444.156435] wlan0: no IPv6 routers present
[ 8474.939854] wlan0: No active IBSS STAs - trying to scan for other IBSS
networks with same SSID (merge)
[ 8510.543150] wlan0: No active IBSS STAs - trying to scan for other IBSS
networks with same SSID (merge)
[... ad infinitum...]
Similar bug has been reported as #786697
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-58-generic 3.2.0-58.88
ProcVersionSignature: Ubuntu 3.2.0-58.88-generic 3.2.53
Uname: Linux 3.2.0-58-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path',
'/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/hwC1D1', '/dev/snd/hwC1D2',
'/dev/snd/hwC1D3', '/dev/snd/pcmC1D3p', '/dev/snd/pcmC1D7p',
'/dev/snd/pcmC1D8p', '/dev/snd/pcmC1D9p', '/dev/snd/controlC0',
'/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xe9660000 irq 48'
Mixer name : 'IDT 92HD81B1C5'
Components : 'HDA:111d76d5,1028040b,00100104'
Controls : 20
Simple ctrls : 11
Card1.Amixer.info:
Card hw:1 'NVidia'/'HDA NVidia at 0xe3080000 irq 17'
Mixer name : 'Nvidia GPU 0b HDMI/DP'
Components : 'HDA:10de000b,10de0101,00100200'
Controls : 24
Simple ctrls : 4
Date: Thu Feb 6 14:48:28 2014
HibernationDevice: RESUME=UUID=fd6f0604-83fa-45c1-a56e-80bb322e9699
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: Dell Inc. Latitude E6510
MarkForUpload: True
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcEnviron:
LANGUAGE=it:en
TERM=xterm
PATH=(custom, no user)
LANG=it_IT.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-58-generic
root=UUID=38ffdbfc-d172-4cea-a5dd-71533e6d9e74 ro quiet splash
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.2.0-58-generic N/A
linux-backports-modules-3.2.0-58-generic N/A
linux-firmware 1.79.9
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: Upgraded to precise on 2012-05-02 (645 days ago)
dmi.bios.date: 11/20/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.name: 0N5KHN
dmi.board.vendor: Dell Inc.
dmi.board.version: A03
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA06:bd11/20/2010:svnDellInc.:pnLatitudeE6510:pvr0001:rvnDellInc.:rn0N5KHN:rvrA03:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E6510
dmi.product.version: 0001
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug precise running-unity staging
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https://bugs.launchpad.net/bugs/1277087
Title:
Cannot start wifi as hotspot: Unable to find TIM Element in beacon
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