[Bug 1046741] Re: Wireless very slow on thinkpad x61s with 12.04

Lilian ROBERT lilian.robert at gmail.com
Fri Sep 7 09:25:11 UTC 2012

I found this : http://forums.gentoo.org/viewtopic-t-910606-start-0.html

I tried the following :
1) create a new file /etc/modprobe.d/iwl4965-disable11n.conf with the following content: 
     options iwl4965 11n_disable=1 
2) Reboot

It seems to be a good workaround as I am now able to do apt-get update
and install new packages.

I will try to remove the manually installed 3.5rc5 kernel.

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  Wireless very slow on thinkpad x61s with 12.04

Status in “update-manager” package in Ubuntu:

Bug description:

  I installed Ubuntu 12.04 Desktop i386 on my Lenovo Thinkpad X61s.

  Wireless is very very slow, quite impossible to do the updates,
  internet surfing very slow etc.

  Regarding bug #1018423 I tested kernels 3.5 rc5 and 3.6 rc4 with no
  better result.

  Thank you for you help on this very annoying problem.
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: i386
   [   27.153726] init: plymouth-stop pre-start process (1243) terminated with status 1
   [  320.151929] cfg80211: Found new beacon on frequency: 2472 MHz (Ch 13) on phy0
   [  330.475817] type=1400 audit(1346922849.419:27): apparmor="DENIED" operation="capable" parent=1 profile="/usr/sbin/cupsd" pid=930 comm="cupsd" pid=930 comm="cupsd" capability=36  capname="epollwakeup"
  DistroRelease: Ubuntu 12.04
   com.ubuntu.update-manager first-run false
   com.ubuntu.update-manager launch-time 1346840872
   com.ubuntu.update-manager window-height 500
   com.ubuntu.update-manager window-width 600
  InstallationMedia: Ubuntu 12.04 "Precise" - Build i386 LIVE Binary 20120426-12:41
  Package: update-manager 1:
  PackageArchitecture: all
   PATH=(custom, no user)
  Tags:  precise running-unity
  Uname: Linux 3.5.0-030500rc5-generic i686
  UnreportableReason: Ce paquet n'est pas officiellement pris en charge par Ubuntu. Veuillez désinstaller tout paquet tiers et réessayer.
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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