Incredibly slow wifi-connection, almost unusable

[Tobias Wolf]

The wireless connection is really slow, never faster than 12 kb/s . Normal is 120 kb/s at least (all my internet connection gives). This issue presented itself the first time after upgrading to ubuntu 11.04 alpha3 and could be resolved by using networking G-standard instead of N OR by using the older kernel 2.6.35 which means that it is definitely a kernel regression.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image (not installed)
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.38-7.35-generic 2.6.38
Uname: Linux 2.6.38-7-generic x86_64
.etc.asound.conf:

AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: tobias 1560 F.... pulseaudio
CRDA: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xefffc000 irq 43'
   Mixer name : 'SigmaTel STAC9221 A1'
   Components : 'HDA:83847680,102801ab,00103201'
   Controls : 21
   Simple ctrls : 14
Card1.Amixer.info:
 Card hw:1 'M2496'/'M Audio Audiophile 24/96 at 0xcc60, irq 18'
   Mixer name : 'ICE1712 - multitrack'
   Components : ''
   Controls : 48
   Simple ctrls : 26
CheckboxSubmission: a13e9bce6ae3b93e9f6fd3300df7b96a
CheckboxSystem: 2a6f54df59af338184485e85cbcf0d32
Date: Fri Mar 18 13:31:03 2011
HibernationDevice: RESUME=UUID=ffe6eda0-c2ff-4059-a065-4971531c9dfc
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
MachineType: Dell Inc. Dell DM051
ProcEnviron:
 LANGUAGE=de_DE:en
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-7-generic root=UUID=fad381b7-429a-4d79-8db9-b919a078cd06 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 1.48
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to natty on 2011-03-18 (0 days ago)
dmi.bios.date: 01/08/2007
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 0HJ054
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA07:bd01/08/2007:svnDellInc.:pnDellDM051:pvr:rvnDellInc.:rn0HJ054:rvr:cvnDellInc.:ct6:cvr:
dmi.product.name: Dell DM051
dmi.sys.vendor: Dell Inc.

[Tobias Wolf (tobias-mr-wolf)]

Sorry, this is a duplicate of these bugs:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/721449
https://bugs.launchpad.net/ubuntu/+source/kernel-package/+bug/709564

Didn't know that I couldn't post it to the existing thread ^^