Poor quality wireless connection with Intel 3945ABG [Golan]

[jsmmster]

Hi. I'm having poor wireless connections in my Thinkpad X60s with Ubuntu 8.10 Intrepid. I copy some info, in case you are able to help. Thanks,

$ iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

wmaster0 no wireless extensions.

wlan0 IEEE 802.11abg ESSID:"Tele2"
Mode:Managed Frequency:2.462 GHz Access Point: 00:03:6F:4E:1A:9C
Bit Rate=54 Mb/s Tx-Power=15 dBm
Retry min limit:7 RTS thrff Fragment thr=2352 B
Power Managementff
Link Quality=92/100 Signal level:-38 dBm Noise level=-71 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

pan0 no wireless extensions.

$ dmesg | grep -i iwl
[ 16.048177] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.26ks
[ 16.048182] iwl3945: Copyright(c) 2003-2008 Intel Corporation
[ 16.048295] iwl3945 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 16.048311] iwl3945 0000:03:00.0: setting latency timer to 64
[ 16.048334] iwl3945: Detected Intel Wireless WiFi Link 3945ABG
[ 16.233693] iwl3945: Tunable channels: 13 802.11bg, 23 802.11a channels
[ 16.263672] phy0: Selected rate control algorithm 'iwl-3945-rs'
[ 16.804930] iwl3945 0000:03:00.0: PCI INT A disabled
[ 44.653476] iwl3945 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 44.653626] iwl3945 0000:03:00.0: restoring config space at offset 0x1 (was 0x100102, writing 0x100106)
[ 44.653953] firmware: requesting iwlwifi-3945-1.ucode
[ 44.783519] Registered led device: iwl-phy0:radio
[ 44.783574] Registered led device: iwl-phy0:assoc
[ 44.783609] Registered led device: iwl-phy0:RX
[ 44.783642] Registered led device: iwl-phy0:TX

$ lshw -C Network
WARNING: you should run this program as super-user.
*-network
description: Ethernet interface
product: 82573L Gigabit Ethernet Controller
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: eth0
version: 00
serial: 00:16:d3:29:dc:5c
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical
configuration: broadcast=yes driver=e1000e driverversion=0.3.3.3-k6 firmware=0.5-1 latency=0 module=e1000e multicast=yes
*-network
description: Wireless interface
product: PRO/Wireless 3945ABG [Golan] Network Connection
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wmaster0
version: 02
serial: 00:13:02:4c:1f:8a
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list logical ethernet physical wireless
configuration: broadcast=yes driver=iwl3945 ip=192.168.0.193 latency=0 module=iwl3945 multicast=yes wireless=IEEE 802.11abg
*-network DISABLED
description: Ethernet interface
physical id: 1
logical name: pan0
serial: ee:e3:fc:90:ff:82
capabilities: ethernet physical
configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A multicast=yes

$ modprobe -l "iwl*"
/lib/modules/2.6.27-7-generic/updates/iwlcore.ko
/lib/modules/2.6.27-7-generic/updates/iwlagn.ko
/lib/modules/2.6.27-7-generic/updates/iwl3945.ko

$ dmesg | grep -i iwl
[ 16.048177] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.26ks
[ 16.048182] iwl3945: Copyright(c) 2003-2008 Intel Corporation
[ 16.048295] iwl3945 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 16.048311] iwl3945 0000:03:00.0: setting latency timer to 64
[ 16.048334] iwl3945: Detected Intel Wireless WiFi Link 3945ABG
[ 16.233693] iwl3945: Tunable channels: 13 802.11bg, 23 802.11a channels
[ 16.263672] phy0: Selected rate control algorithm 'iwl-3945-rs'
[ 16.804930] iwl3945 0000:03:00.0: PCI INT A disabled
[ 44.653476] iwl3945 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 44.653626] iwl3945 0000:03:00.0: restoring config space at offset 0x1 (was 0x100102, writing 0x100106)
[ 44.653953] firmware: requesting iwlwifi-3945-1.ucode
[ 44.783519] Registered led device: iwl-phy0:radio
[ 44.783574] Registered led device: iwl-phy0:assoc
[ 44.783609] Registered led device: iwl-phy0:RX
[ 44.783642] Registered led device: iwl-phy0:TX

[sportfreak]

hey..i had a similar problem on my frnds dell laptop with that card
it got solved with the help of the following:
[Worth a shottt]

http://linuxtechie.wordpress.com/2008/0 ... ntu-hardy/

[jsmmster]

Thanks for your reply. I had already installed the backports, yet the signal remains weak. Remarkably weak when compared to what other laptops (windows) are able to get in my office. I also suspect mine cannot see hidden networks. Any help? Thanks