wireless problem in inspiron6400

[manu jain]

my system freezes as soon as i switch on my wireless....and if wireless switch is on then my system does not even boot in ubuntu.....

i have installed windows xp sp3 home edition along with ubuntu 8.10

help???

[coffeeaddict22]

Hi,
I take it you can get into Ubuntu without any trouble, so long as the wireless is off?
Does the wireless work fine in Windows?
Was it working? What did you do prior to it breaking?
And, assuming you can get into Ubuntu, a couple of things. Can you post back the output of lshw -C network
iwconfig
They're two separate commands, and hopefully will point out the problem.
Also, make it freeze, reboot, and post back the output of dmesgIf you can figure out the relevant bit (the numbers on the left of the output are seconds, so just look for where they change to see the reboot; it'll be just before that) just post that back. Put it between code brackets (the # button at the top of the box here) to make it easier to read.

[manu jain]

mj@ubuntu:~$ lshw -C network
WARNING: you should run this program as super-user.
*-network
description: Wireless interface
product: PRO/Wireless 3945ABG [Golan] Network Connection
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:0b:00.0
logical name: wlan0
version: 02
serial: 00:18:de:82:7f:3d
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ndiswrapper+w39n51 driverversion=1.53+Intel,12/04/2005,10.1.0.13 latency=0 module=ndiswrapper multicast=yes wireless=IEEE 802.11g
*-network
description: Ethernet interface
product: BCM4401-B0 100Base-TX
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: eth0
version: 02
serial: 00:15:c5:19:57:82
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical
configuration: broadcast=yes driver=b44 driverversion=2.0 ip=192.168.18.71 latency=64 module=ssb multicast=yes
*-network DISABLED
description: Ethernet interface
physical id: 1
logical name: pan0
serial: fe:46:01:c2:7e:b1
capabilities: ethernet physical
configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A multicast=yes

[manu jain]

mj@ubuntu:~$ iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

wlan0 IEEE 802.11g ESSID:off/any
Mode:Managed Frequency:2.462 GHz Access Point: Not-Associated
Bit Rate:54 Mb/s
RTS thr=35613 B Fragment thr=35613 B
Power Management max timeout:0us mode:All packets received
Link Quality:0 Signal level:0 Noise level:0
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.

[manu jain]

my wireless works absolutely fine in windows xp but not in ubuntu 8.10..http://ubuntuforums.org/images/icons/icon9.gif

[coffeeaddict22]

Your problem is the driver. You're running the windows driver under ndiswrapper, but there's a driver for your wireless card in the kernel; unload ndiswrapper (sudo modprobe -r ndiswrapper), and see if that's all it takes. if not, type lsmod |grep iwlwifi; if there's no output from that, modprobe iwlwifi should do it. See the Intel wireless site here (http://intellinuxwireless.org/) for more details.

If it's not right after that, reboot, then run lshw -C network again, followed by iwconfig
nm-tooland post the results back.

[manu jain]

i installed the wireless driver.....but....again when i switched on my wireless......everything froze.....sandstill

[manu jain]

mj@ubuntu:~$ lshw -C network
WARNING: you should run this program as super-user.
*-network
description: Wireless interface
product: PRO/Wireless 3945ABG [Golan] Network Connection
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:0b:00.0
logical name: wlan0
version: 02
serial: 00:ax:ax:ax:ax:3d
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ndiswrapper+w39n51 driverversion=1.53+Intel,12/04/2005,10.1.0.13 latency=0 module=ndiswrapper multicast=yes wireless=IEEE 802.11g
*-network
description: Ethernet interface
product: BCM4401-B0 100Base-TX
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: eth0
version: 02
serial: 00:yy:yy:yy:yy:82
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical
configuration: broadcast=yes driver=b44 driverversion=2.0 ip=192.168.18.71 latency=64 module=ssb multicast=yes
*-network DISABLED
description: Ethernet interface
physical id: 1
logical name: pan0
serial: 76:yy:yy:yy:yy:b4
capabilities: ethernet physical
configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A multicast=yes
mj@ubuntu:~$ iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

wlan0 IEEE 802.11g ESSID:off/any
Mode:Managed Frequency:2.462 GHz Access Point: Not-Associated
Bit Rate:54 Mb/s
RTS thr=35613 B Fragment thr=35613 B
Power Management max timeout:0us mode:All packets received
Link Quality:0 Signal level:0 Noise level:0
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.

mj@ubuntu:~$ nm-tool

NetworkManager Tool

State: connected

- Device: eth0 ----------------------------------------------------------------
Type: Wired
Driver: NULL(info.linux.driver)
State: connected
Default: yes
HW Address: 00:zz:zz:zz:zz:82

Capabilities:
Supported: yes
Carrier Detect: yes
Speed: 100 Mb/s

Wired Settings

IPv4 Settings:
Address: 192.168.18.71
Prefix: 24 (255.255.255.0)
Gateway: 192.168.18.1

DNS: 192.168.4.12
DNS: 192.168.4.10


- Device: wlan0 ----------------------------------------------------------------
Type: 802.11 WiFi
Driver: ndiswrapper
State: unavailable
Default: no
HW Address: 00:ax:ax:ax:ax:3D

Capabilities:
Supported: yes

Wireless Settings
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes

Wireless Access Points

[coffeeaddict22]

You're still running ndiswrapper (have a look at the driver line in nm-tool for your wireless). You need to do the ndiswrapper removal- sudo modprobe -r ndiswrapper and then see what you've got. Currently there's two drivers installed, they're competing for your card... bad things happen. You need to remove one.