[ath5k] ThinkPad Atheros AR5212 based abg adapter low bandwith

[Christiansen]

Binary package hint: linux-image-2.6.31-11-generic

3. generation Atheros based wireless adapters delivered with later ThinkPad models do not work or deliver extreme low bandwidth with the ath5k kernel module. In Jaunty the adaptors do work with the restricted ath_pci kernel module, which is not avalible at present time for Karmic.
Using the ath5k module with a Cisco atheros AR5211 based PCMCIA adapter under the same installation, gives the same bad performance. Opposit using a Netgear AR5212 based works flawlessly.

The hardware ID for this Thinkpad adapter is:
03:00.0 Ethernet controller [0200]: Atheros Communications Inc. AR5212 802.11abg NIC [168c:1014] (rev 01)
        Subsystem: IBM Device [1014:058a]

ProblemType: Bug
Architecture: i386
Date: Tue Sep 29 23:25:46 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/kdeinit4
Package: kdelibs-bin 4:4.3.1-0ubuntu3
ProcEnviron:
 LANGUAGE=da_DK:da:en_GB:en
 LANG=da_DK.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-11.36-generic
SourcePackage: kde4libs
Uname: Linux 2.6.31-11-generic i686

[Christiansen (happylinux)]

A quit similar bug has earlier been reported as bug #276508 for Intrepid too, but no one seems to bother changing the title from Intrepid even though I've added information for Karmic too.

For further hardware information of the different ThinkPad Atheros adapter types could be found here :
http://www.thinkwiki.org/wiki/Wireless_Network_Adapters#Atheros

[Christiansen (happylinux)]

Marked this bug as a duplicate of bug #461419, as this bug was only filed to supply specific info on Karmic.