I confirm this bug with Karmic. To set the bit rate manually doesn't work
anymore.
The bit rate seems to have been changed but the connection is still very slow
and the connectivity is poor.
~$ iwconfig
lo no wireless extensions.
wmaster0 no wireless extensions.
wlan0 IEEE 802.11bg ESSID:"Reseau_maison"
Mode:Managed Frequency:2.457 GHz Access Point: 00:07:CB:53:DD:50
Bit Rate=54 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=33/70 Signal level=-77 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
~$ uname -a
Linux bellerophon 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009
i686 GNU/Linux
~$ modinfo rt2500pci
filename:
/lib/modules/2.6.31-14-generic/kernel/drivers/net/wireless/rt2x00/rt2500pci.ko
license: GPL
description: Ralink RT2500 PCI & PCMCIA Wireless LAN driver.
version: 2.3.0
author: http://rt2x00.serialmonkey.com
srcversion: 017B67DDC35630260307788
alias: pci:v00001814d00000201sv*sd*bc*sc*i*
depends: rt2x00lib,rt2x00pci,eeprom_93cx6
vermagic: 2.6.31-14-generic SMP mod_unload modversions 586
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[Hardy][Intrepid] Low bandwidth with rt2400 / rt2500 drivers
https://bugs.launchpad.net/bugs/190515
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