Ubuntu
linux package

14E4:4727 Wireless doesn't connect most of the time

Bug #972670 reported by sid payton on 2012-04-03

This bug affects 4 people

Affects		Status	Importance	Assigned to	Milestone
	Linux	Confirmed	Medium	linux-kernel-bugs #43111
	linux (Ubuntu)	Incomplete	Medium	Unassigned

Bug Description

Most of the time the network manager doesn't connect to a network, although the signal is strong.
Sometimes it starts working after I dis/enable the wireless again.
This happens since 11.10 and it's really horroble to use my Netbook (EeePC 1015PEM).
It also happens with other networks.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: network-manager-gnome 0.9.3.995+git.20120313t141231.c89224f-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-20.33-generic-pae 3.2.12
Uname: Linux 3.2.0-20-generic-pae i686
ApportVersion: 1.95-0ubuntu1
Architecture: i386
Date: Tue Apr 3 19:31:35 2012
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/nm-connection-editor
IfupdownConfig:
auto lo
iface lo inet loopback
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20120201.1)
IpRoute:

NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: network-manager-applet
UpgradeStatus: Upgraded to precise on 2012-03-02 (31 days ago)
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269VB Analog [ALC269VB Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu2
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269VB Analog [ALC269VB Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: sid 1906 F.... pulseaudio
CRDA:
country DE:
  (2400 - 2483 @ 40), (N/A, 20)
  (5150 - 5250 @ 40), (N/A, 20), NO-OUTDOOR
  (5250 - 5350 @ 40), (N/A, 20), NO-OUTDOOR, DFS
  (5470 - 5725 @ 40), (N/A, 26), DFS
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf7cf8000 irq 45'
   Mixer name : 'Realtek ALC269VB'
   Components : 'HDA:10ec0269,1043841c,00100100'
   Controls : 16
   Simple ctrls : 9
DistroRelease: Ubuntu 12.04
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=17f2c958-efa6-4175-a0d9-65311fb1410c
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20120201.1)
MachineType: ASUSTeK Computer INC. 1015PEM
Package: linux (not installed)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic-pae root=UUID=82f8c228-d338-4bb0-b01d-33237d78d88d ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic-pae 3.2.14
RelatedPackageVersions:
linux-restricted-modules-3.2.0-23-generic-pae N/A
linux-backports-modules-3.2.0-23-generic-pae N/A
linux-firmware 1.78
SourcePackage: linux
Tags: precise precise
Uname: Linux 3.2.0-23-generic-pae i686
UpgradeStatus: Upgraded to precise on 2012-03-02 (43 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 08/13/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0606
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: 1015PE
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: x.xx
dmi.chassis.asset.tag: 0x00000000
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer INC.
dmi.chassis.version: x.x
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0606:bd08/13/2010:svnASUSTeKComputerINC.:pn1015PEM:pvrx.x:rvnASUSTeKComputerINC.:rn1015PE:rvrx.xx:cvnASUSTeKComputerINC.:ct10:cvrx.x:
dmi.product.name: 1015PEM
dmi.product.version: x.x
dmi.sys.vendor: ASUSTeK Computer INC.

See original description

Tags:

Revision history for this message

sid payton (sid51) wrote on 2012-04-03:

CRDA.txt Edit (169 bytes, text/plain; charset="utf-8")
Dependencies.txt Edit (5.7 KiB, text/plain; charset="utf-8")
IpAddr.txt Edit (635 bytes, text/plain; charset="utf-8")
IwConfig.txt Edit (509 bytes, text/plain; charset="utf-8")
NetDevice.eth0.txt Edit (474 bytes, text/plain; charset="utf-8")
NetDevice.lo.txt Edit (206 bytes, text/plain; charset="utf-8")
NetDevice.wlan0.txt Edit (509 bytes, text/plain; charset="utf-8")
NetworkManager.conf.txt Edit (69 bytes, text/plain; charset="utf-8")
PciNetwork.txt Edit (1.2 KiB, text/plain; charset="utf-8")
ProcMaps.txt Edit (30.3 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (799 bytes, text/plain; charset="utf-8")
RfKill.txt Edit (186 bytes, text/plain; charset="utf-8")
WifiSyslog.txt Edit (7.3 MiB, text/plain; charset="utf-8")
XsessionErrors.txt Edit (52.8 KiB, text/plain; charset="utf-8")
nmcli-con.txt Edit (1.4 KiB, text/plain; charset="utf-8")
nmcli-dev.txt Edit (269 bytes, text/plain; charset="utf-8")
nmcli-nm.txt Edit (219 bytes, text/plain; charset="utf-8")

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-04-09:

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in network-manager-applet (Ubuntu):
status:	New → Confirmed

Revision history for this message

Mathieu Trudel-Lapierre (cyphermox) wrote on 2012-04-13:

Appears to be an issue in the brcmsmac driver; reassinging to 'linux'.

affects:	network-manager-applet (Ubuntu) → linux (Ubuntu)
Changed in linux (Ubuntu):
status:	Confirmed → New

Revision history for this message

Brad Figg (brad-figg) wrote on 2012-04-13: Missing required logs.

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 972670

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

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

Revision history for this message

Joseph Salisbury (jsalisbury) wrote on 2012-04-13: Re: Wireless doesn't connect most of the time

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.4kernel[1] (Not a kernel in the daily directory). Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag(Only that one tag, please leave the other tags). 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.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4-rc2-precise/

Changed in linux (Ubuntu):
importance:	Undecided → Medium
tags:	added: kernel-wifi
tags:	added: needs-upstream-testing

Revision history for this message

sid payton (sid51) wrote on 2012-04-15: AcpiTables.txt

AcpiTables.txt Edit (228.1 KiB, text/plain)

apport information

tags:	added: apport-collected
description:	updated

Revision history for this message

sid payton (sid51) wrote on 2012-04-15: AlsaDevices.txt

AlsaDevices.txt Edit (382 bytes, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: BootDmesg.txt

BootDmesg.txt Edit (52.6 KiB, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: Card0.Amixer.values.txt

Card0.Amixer.values.txt Edit (1.9 KiB, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: Card0.Codecs.codec.0.txt

#10

Card0.Codecs.codec.0.txt Edit (8.8 KiB, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: CurrentDmesg.txt

#11

CurrentDmesg.txt Edit (8.9 KiB, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: IwConfig.txt

#12

IwConfig.txt Edit (508 bytes, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: Lspci.txt

#13

Lspci.txt Edit (10.4 KiB, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: Lsusb.txt

#14

Lsusb.txt Edit (438 bytes, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: PciMultimedia.txt

#15

PciMultimedia.txt Edit (616 bytes, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: ProcCpuinfo.txt

#16

ProcCpuinfo.txt Edit (3.0 KiB, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: ProcInterrupts.txt

#17

ProcInterrupts.txt Edit (2.0 KiB, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: ProcModules.txt

#18

ProcModules.txt Edit (2.1 KiB, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: PulseList.txt

#19

PulseList.txt Edit (16.0 KiB, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: RfKill.txt

#20

RfKill.txt Edit (240 bytes, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: UdevDb.txt

#21

UdevDb.txt Edit (122.2 KiB, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: UdevLog.txt

#22

UdevLog.txt Edit (268.4 KiB, text/plain)

apport information

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sid payton (sid51) wrote on 2012-04-15: WifiSyslog.txt

#23

WifiSyslog.txt Edit (2.3 MiB, text/plain)

apport information

sid payton (sid51) on 2012-04-15

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

sid payton (sid51) on 2012-04-16

tags:

added: kernel-bug-exists-upstream
removed: needs-upstream-testing

Revision history for this message

Joseph Salisbury (jsalisbury) wrote on 2012-04-16: Re: Wireless doesn't connect most of the time

#24

This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report at bugzilla.kernel.org [1]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.

If you are comfortable with opening a bug upstream, It would be great if you can report back the upstream bug number in this bug report. That will allow us to link this bug to the upstream report.

[1] https://wiki.ubuntu.com/Bugs/Upstream/kernel

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

Revision history for this message

sid payton (sid51) wrote on 2012-04-16:

#25

Upstream bug number:

Bug 43111 - Wireless doesn't connect most of the time

Bug Watch Updater (bug-watch-updater) on 2012-04-18

Changed in linux:
importance:	Unknown → Medium
status:	Unknown → Confirmed

penalvch (penalvch) on 2012-08-01

summary:	- Wireless doesn't connect most of the time + 14E4:4727 Wireless doesn't connect most of the time
tags:	added: regression-release

Revision history for this message

penalvch (penalvch) wrote on 2012-08-01:

#26

sid51, thank you for reporting this and helping make Ubuntu better.
+ As a potential WORKAROUND, does the following work for you https://help.ubuntu.com/community/BroadcomSTA%28Wireless%29 ?
+ As a potential WORKAROUND, does the following work for you https://help.ubuntu.com/community/WifiDocs/Driver/Ndiswrapper ?
+ The next step is to perform a kernel bisect from Maverick to Oneiric, in order to identify the offending commit(s). Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection ?