Comment 140 for bug 621265

I gave up.
I bought a new intel n-draft wifi PCIE Module for 12EUR and replaced my 3945.

Regards olli
-----Original Message-----
From: Radosław Piliszek <email address hidden>
Sender: <email address hidden>
Date: Mon, 27 Dec 2010 10:32:22
To: <email address hidden>
Reply-To: Bug 621265 <email address hidden>
Subject: [Bug 621265] Re: Slow Wireless Connection in Intel 3945abg

I started by fixing Windows. Seems it was using a buggy driver. Now it has proper speeds (around 3MBytes/s).
So there is now a base for comparison.

I will test reverting the 1st and then 2nd commit again, taking into
account that "speed decrease isn't always instant" - I just experienced
it. Launched Kubuntu 10.10 and whoa, it's OK, I went out and after
coming back - what the... (speed around 3 Mbit/s not MBytes/s)

My notebook isn't a speed daemon - recompilation takes a lot of time.

I'll post results today - I hope.

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Title:
  Slow Wireless Connection in Intel 3945abg

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Maverick:
  Confirmed

Bug description:
  With latest daily-live Maverick (2010-08-20), my wireless connection with Intel 3945abg never go over 3mbps speed.
I try this in local lan and in internet.
It seems like a regression about iwl3945 driver, i had a similar problem with older kernel where wireless speed was limited to 1mbps, with k/ubuntu 10.04 and 2.6.32 kernel this problem was disappear.

Some information:
lsb_release -rd:
Description: Ubuntu maverick (development branch)
Release: 10.10

uname -a:
Linux ubuntu 2.6.35-16-generic #22-Ubuntu SMP Tue Aug 17 02:21:03 UTC 2010 x86_64 GNU/Linux

dmesg | grep 3945:

[ 27.977578] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, in-tree:s
[ 27.977583] iwl3945: Copyright(c) 2003-2010 Intel Corporation
[ 27.977678] iwl3945 0000:02:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 27.977693] iwl3945 0000:02:00.0: setting latency timer to 64
[ 28.043199] iwl3945 0000:02:00.0: Tunable channels: 13 802.11bg, 23 802.11a channels
[ 28.043205] iwl3945 0000:02:00.0: Detected Intel Wireless WiFi Link 3945ABG
[ 28.043366] iwl3945 0000:02:00.0: irq 43 for MSI/MSI-X
[ 28.185681] phy0: Selected rate control algorithm 'iwl-3945-rs'
[ 28.523764] iwl3945 0000:02:00.0: loaded firmware version 15.32.2.9

iwconfig:
wlan0 IEEE 802.11abg ESSID:"Dorema"
          Mode:Managed Frequency:2.472 GHz Access Point: 00:1A:92:11:1C:C7
          Bit Rate=54 Mb/s Tx-Power=15 dBm
          Retry long limit:7 RTS thr:off Fragment thr:off
          Power Management:off
          Link Quality=68/70 Signal level=-42 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
          Tx excessive retries:0 Invalid misc:0 Missed beacon:0

My access point is Asus WL-600g

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