[SOLVED] iwl3945: Intel(R) PRO/Wireless 3945ABG - doesn't work

[gryzzly]

Hi, folks.
Once again I've installed 8.04 on my laptop (it's Lenovo 3000 n200 0769 BRG). I have installed all updates.

Wifi still doesn't work

here is output for dmesg | grep -i iwl when wireless switch is off:

[   39.518968] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.0
[   39.518973] iwl3945: Copyright(c) 2003-2007 Intel Corporation
[   39.519128] iwl3945: Detected Intel PRO/Wireless 3945BG Network Connection
[   42.024975] iwl3945: Radio Frequency Kill Switch is On:
[   42.046004] iwl3945: WARNING: Requesting MAC access during RFKILL wakes up NIC
[   42.056006] iwl3945: WARNING: Requesting MAC access during RFKILL wakes up NIC
[   42.075914] iwl3945: WARNING: Requesting MAC access during RFKILL wakes up NIC
[   42.103390] iwl3945: WARNING: Requesting MAC access during RFKILL wakes up NIC
[   42.123282] iwl3945: Tunable channels: 13 802.11bg, 0 802.11a channels

here is output for dmesg | grep -i iwl when wireless switch is ON:

[   39.518968] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.0
[   39.518973] iwl3945: Copyright(c) 2003-2007 Intel Corporation
[   39.519128] iwl3945: Detected Intel PRO/Wireless 3945BG Network Connection
[   42.024975] iwl3945: Radio Frequency Kill Switch is On:
[   42.046004] iwl3945: WARNING: Requesting MAC access during RFKILL wakes up NIC
[   42.056006] iwl3945: WARNING: Requesting MAC access during RFKILL wakes up NIC
[   42.075914] iwl3945: WARNING: Requesting MAC access during RFKILL wakes up NIC
[   42.103390] iwl3945: WARNING: Requesting MAC access during RFKILL wakes up NIC
[   42.123282] iwl3945: Tunable channels: 13 802.11bg, 0 802.11a channels
[  126.804818] wmaster0: Selected rate control algorithm 'iwl-3945-rs'
[  128.212275] iwl3945: Microcode SW error detected.  Restarting 0x82000008.
[  128.212288] iwl3945: Error Reply type 0x00000005 cmd REPLY_SCAN_CMD (0x80) seq 0x4418 ser 0x0000004B
[  129.204254] iwl3945: Can't stop Rx DMA.

uname -r: 2.6.24-18-generic

[sagar_pg]

(bump) I have the exact same problem.. no solutions.
Lenovo T61.
$ uname -a
Linux Ares 2.6.24-18-generic #1 SMP Wed May 28 19:28:38 UTC 2008 x86_64 GNU/Linux
$ lspci | grep 3945
03:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02)

I have the same error message popping up in the logs:
[ 4.493914] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.0
[ 4.493917] iwl3945: Copyright(c) 2003-2007 Intel Corporation
[ 4.494873] iwl3945: Detected Intel PRO/Wireless 3945ABG Network Connection
[ 4.607327] iwl3945: Tunable channels: 11 802.11bg, 13 802.11a channels
[ 4.608700] wmaster0: Selected rate control algorithm 'iwl-3945-rs'
[ 4504.263059] iwl3945: Microcode SW error detected. Restarting 0x82000008.
[ 4504.263070] iwl3945: Error Reply type 0x00000005 cmd REPLY_TX (0x1C) seq 0x02D4 ser 0x0000004B
[ 4506.251624] iwl3945: Can't stop Rx DMA.


Additional bit of information: I use this laptop at work and at home. I only see this at work. The 2 differences I see: work router uses WEP (WPA2 at home), and work router is a 802.11n (802.11g at home)

I've had this ever since I upgraded to hardy. (Been using gutsy for a few months before, same setup, no issues).

[chili555]

Have either of you installed linux-backports-modules-hardy-generic? There is evidently a revision to iwl3945 in there.

What is the result of:

sudo iwlist wlan0 scan

Thanks.

[gryzzly]

Have either of you installed linux-backports-modules-hardy-generic? There is evidently a revision to iwl3945 in there.

What is the result of:

sudo iwlist wlan0 scan

Thanks.

this one is when wireless switch is off:
wlan0 Interface doesn't support scanning.

this is when the switch is on:
misha@misha-laptop:~$ sudo iwlist wlan0 scan
wlan0 Failed to read scan data : Resource temporarily unavailable

I will install backports now;
will post here the result.

[gryzzly]

Installed linux-backports-modules-hardy-generic

Wifi doesn't work, here is the output for dmesg | grep -i iwl:
(it's the same for both cases, when switch is on, and when it's off)

misha@misha-laptop:~$ dmesg | grep -i iwl
[   36.868659] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.25
[   36.868664] iwl3945: Copyright(c) 2003-2007 Intel Corporation
[   36.868835] iwl3945: Detected Intel PRO/Wireless 3945BG Network Connection
[   36.945572] wmaster0: Selected rate control algorithm 'iwl-3945-rs'
[   42.714948] iwl3945: Radio disabled by HW RF Kill switch

[gryzzly]

sorry, here is output for sudo iwlist wlan0 scan

wlan0     Interface doesn't support scanning : Network is down

[chili555]

Please do:

sudo rmmod -f iwl3945
sudo modprobe iwl3945 disable_hw_scan=1

Now does your card scan and connect as expected? If so, please apply the fix here: http://ubuntuforums.org/showthread.php?t=808516 in post #4.

If not, post back.

[gryzzly]

Wheeeeee!!! Thanks, chili555! You made this evening and probably next week for me! Thanks!!!

Just one question, is this something I will need to do all the time, or it's enough one time to make this:

sudo su
echo -e 'alias wlan0 iwl3945 \noptions iwl3945 disable_hw_scan=1' > /etc/modprobe.d/iwl3945
reboot

[chili555]

it's enough one time

Indeed it is. If it came up automagically when you rebooted, it will, barring unforeseen circumstances, come up every time you boot. If not, post back.

[gryzzly]

Ok, afer reboot it didn't come.
Needed to make:

sudo rmmod -f iwl3945
sudo modprobe iwl3945 disable_hw_scan=1

to get things working,
sekond part from d.r.e.a.m's post didn't help.

(Should I turn the switch on or off when doing it?)