Ubuntu
linux package

Wifi silently stops working occasionally

Bug #742621 reported by Michael Terry on 2011-03-25

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	linux (Ubuntu)	Fix Released	Undecided	Unassigned

Bug Description

I'll be connected to my local wifi access point when occasionally (seemingly without visible cause), no network activity gets through. A reboot does not fix it. Only an actual shut down and turn-on will fix it.

NetworkManager still indicates that I'm connected. If I try to reconnect to the access point, NetworkManager will never be able to make a connection.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-7-generic 2.6.38-7.38
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.38-7.38-generic 2.6.38
Uname: Linux 2.6.38-7-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
   Subdevices: 0/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: mike 1500 F.... pulseaudio
/dev/snd/pcmC0D0c: mike 1500 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf0800000 irq 43'
   Mixer name : 'Intel IbexPeak HDMI'
   Components : 'HDA:10ec0272,15583100,00100001 HDA:80862804,15584101,00100000'
   Controls : 23
   Simple ctrls : 12
Date: Fri Mar 25 12:52:30 2011
Frequency: Once a week.
HibernationDevice: RESUME=UUID=6f2593f5-8a54-45b3-86d4-c4a0aaa3ee55
MachineType: System76, Inc. Lemur UltraThin
ProcEnviron:
LANGUAGE=en_US:en
PATH=(custom, user)
LANG=en_GB.utf8
LC_MESSAGES=en_US.utf8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-7-generic root=UUID=625ed789-1cb3-4081-9c7e-f812810b5126 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-2.6.38-7-generic N/A
linux-backports-modules-2.6.38-7-generic N/A
linux-firmware 1.49
RfKill:
0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to natty on 2010-09-28 (178 days ago)
dmi.bios.date: 08/17/2010
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: CALPELLACRB.86C.0000.X.0000000000
dmi.board.asset.tag: Tag 12345
dmi.board.name: Lemur UltraThin
dmi.board.vendor: System76, Inc.
dmi.board.version: lemu2
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: System76, Inc.
dmi.chassis.version: lemu2
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrCALPELLACRB.86C.0000.X.0000000000:bd08/17/2010:svnSystem76,Inc.:pnLemurUltraThin:pvrlemu2:rvnSystem76,Inc.:rnLemurUltraThin:rvrlemu2:cvnSystem76,Inc.:ct10:cvrlemu2:
dmi.product.name: Lemur UltraThin
dmi.product.version: lemu2
dmi.sys.vendor: System76, Inc.

Tags:

Revision history for this message

Michael Terry (mterry) wrote on 2011-03-25:

AcpiTables.txt Edit (188.5 KiB, text/plain; charset="utf-8")
AlsaDevices.txt Edit (526 bytes, text/plain; charset="utf-8")
AplayDevices.txt Edit (257 bytes, text/plain; charset="utf-8")
BootDmesg.txt Edit (57.9 KiB, text/plain; charset="utf-8")
Card0.Amixer.values.txt Edit (2.7 KiB, text/plain; charset="utf-8")
Card0.Codecs.codec.0.txt Edit (12.5 KiB, text/plain; charset="utf-8")
Card0.Codecs.codec.3.txt Edit (2.7 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (52.3 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (1.9 KiB, text/plain; charset="utf-8")
IwConfig.txt Edit (600 bytes, text/plain; charset="utf-8")
Lspci.txt Edit (14.2 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (511 bytes, text/plain; charset="utf-8")
PciMultimedia.txt Edit (612 bytes, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (3.2 KiB, text/plain; charset="utf-8")
ProcCpuinfo_.txt Edit (3.2 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (1.9 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (2.7 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (103.5 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (244.4 KiB, text/plain; charset="utf-8")
WifiSyslog.txt Edit (513.3 KiB, text/plain; charset="utf-8")

Brad Figg (brad-figg) on 2011-05-04

Changed in linux (Ubuntu):
status:	New → Confirmed

Revision history for this message

penalvch (penalvch) wrote on 2012-04-01:

Michael Terry, thank you for reporting this and helping make Ubuntu better. This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? 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 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 . 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. Please let us know your results.

Thanks in advance.

Changed in linux (Ubuntu):
status:	Confirmed → Incomplete

Michael Terry (mterry) on 2012-04-01

Changed in linux (Ubuntu):
status:	Incomplete → Fix Released

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