Wireless Problem

I have a Dell 1520 laptop and recently upgraded to 11.04 but it now has no wireless drivers. I used sudo apt-get install b43-fwcutter and it says the drivers are updated. Any help?

Have you enabled them in System>Administration>Additional Drivers ?

If you have, can you open a terminal and send the output from:

sudo lshw -C network

PCI (sysfs)

That’s the output i got.

Give it time to complete :wink:

and can you answer my first question… did you go enable the Broadcom driver in “Aditional Drivers” ?

Yeah i enabled that, I will run it again then lol ::slight_smile:

description: Network controller
product: BCM4311 802.11b/g WLAN
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:0c:00.0
version: 01
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=b43-pci-bridge latency=0
resources: irq:17 memory:fe8fc000-fe8fffff
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: 00:1c:23:9e:28:0f
size: 100Mbit/s
capacity: 100Mbit/s
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=b44 driverversion=2.0 duplex=full ip= latency=64 link=yes multicast=yes port=twisted pair speed=100Mbit/s
resources: irq:17 memory:fe5fe000-fe5fffff

That is the result, I’m currently connected by ethernet cable btw if that makes any difference

  1. Open a terminal and enter:
sudo apt-get remove b43-fwcutter
  1. Go to System>Administration>Addition Drivers and disable/remove the Broadcom STA wireless driver.

  2. Now REBOOT.

  3. Once rebooted… open a terminal and enter:

sudo apt-get install firmware-b43-installer
  1. Still in the terminal enter:
sudo gedit /etc/rc.local
  1. When gedit opens, add a new line:
    modprobe b43
    just above the
    exit 0

So the last 2 lines read -

modprobe b43 exit 0
  1. SAVE the file, and REBOOT… hopefully the wireless will now be active.

Be Aware… I’ve also read that the (hardware) wireless switch on the Dell 1520 works properly in 11.04, so make sure it’s switched ON.

I don’t know how but i removed the drivers, rebooted and my wireless works. There are no additional drivers in use either and i haven’t done any of the other steps.

I’m guessing they must now be built into the 2.6.38 kernel (now that they are open source)… so loading them as a module may have been causing a conflict, as 2 drivers were being loaded :wink:

It would probably have been fine as a fresh install… but as an “upgrade” the old drivers were being left behind, so BOTH were being loaded.