On my Ubunt 11.04 machine, I installed
linux-backports-modules-cw-3.0.0-natty-generic
which gave me the new wireless modules without having to update to the
latest Linux 3.0 kernel.
I also had to setup the "disable_hw_scan=0" as described in #370.
creaate this file,
/etc/modprobe.d/iwl3945.conf
and put this into it.
options iwl3945 disable_hw_scan=0
So far no more speed slowdowns.
Here are my system details,
lspci -vnn |grep -A3 Wireless
0c:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 3945ABG
[Golan] Network Connection [8086:4222] (rev 02)
Subsystem: Intel Corporation Device [8086:1020]
Flags: bus master, fast devsel, latency 0, IRQ 47
Memory at f6cff000 (32-bit, non-prefetchable) [size=4K]
uname -a
Linux d630 2.6.38-12-generic #51-Ubuntu SMP Wed Sep 28 14:25:20 UTC 2011 i686
i686 i386 GNU/Linux
lsb_release -rd
Description: Ubuntu 11.04
Release: 11.04
Thanks for everyone who posted their information to help figure out this issue.
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https://bugs.launchpad.net/bugs/621265
Title:
Slow Wireless Connection in Intel 3945abg
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