Public bug reported:
In some situations where the strength (or SNR) of the signal coming from the
wifi access point is not very good, network performance becomes close to
unusable: a lot of network operation fail, eternal waits, timeouts, packet
loss, even data corruption.
I have experimented this on several different wifi networks.
I always blamed the strength of the signal and thought it was completely
normal, as all the issues disappear when the computer is nearer to the
AP. But recently I've noticed that other machines (and even mobile
devices) in the same networks and in the same physical places with other
operating system work just fine.
It could still be my hardware, but now I've finally seen that even
Windows on the same machine doesn't have any issue with the same
network, so there's definitely some software issue here.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-3.0.0-17-generic 3.0.0-17.30
ProcVersionSignature: Ubuntu 3.0.0-17.30-generic 3.0.22
Uname: Linux 3.0.0-17-generic i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu4
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: teo 10970 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfebf8000 irq 48'
Mixer name : 'Realtek ALC660-VD'
Components : 'HDA:10ec0660,10430000,00100001
HDA:10573055,10431316,00100700'
Controls : 25
Simple ctrls : 16
Date: Fri Apr 6 18:47:59 2012
HibernationDevice: RESUME=UUID=b1b3e5fe-38e2-44c9-9e48-4564cd9f4d66
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MachineType: ASUSTeK Computer Inc. M51Sn
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-17-generic
root=UUID=173acbf5-26a0-49e3-8d2b-f1c142582cbf ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.0.0-17-generic N/A
linux-backports-modules-3.0.0-17-generic N/A
linux-firmware 1.60.1
SourcePackage: linux
StagingDrivers: zram
UpgradeStatus: Upgraded to oneiric on 2011-12-07 (120 days ago)
UserAsoundrc:
pcm.!default { type pulse }
ctl.!default { type pulse }
pcm.pulse { type pulse }
ctl.pulse { type pulse }
dmi.bios.date: 12/24/2007
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 303
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: M51Sn
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr303:bd12/24/2007:svnASUSTeKComputerInc.:pnM51Sn:pvr1.0:rvnASUSTeKComputerInc.:rnM51Sn:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: M51Sn
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: apport-bug i386 oneiric running-unity staging
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https://bugs.launchpad.net/bugs/975316
Title:
wiki network performance degrades awfully where other OSes work just
fine
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