No WiFi on 11-04

Asked by Eric M on 2011-09-05

My machine is a Dell Latitude D531
Audio Controler Sigmatel 9205
Video Controller ATI Radeon Xpress 1270
WiFi Dell Wireless 1390 or 1490

Thank you for your Help

I have sent UBUNTU Tests results

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Can you give the output of:

sudo lshw -C network; lsb_release -a; lsusb; sudo rfkill list


Eric M (eric-margnat) said : #2

root@ejm-laptop:/home/ejm# lshw -C network
  *-network UNCLAIMED
       description: Network controller
       product: BCM4311 802.11b/g WLAN
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:0b:00.0
       version: 01
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: memory:fe8fc000-fe8fffff
       description: Ethernet interface
       product: NetXtreme BCM5755M Gigabit Ethernet PCI Express
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:09:00.0
       logical name: eth2
       version: 02
       serial: 00:1d:09:c1:19:79
       size: 100Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.116 duplex=full firmware=5755m-v3.29 ip= latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
       resources: irq:42 memory:fe7f0000-fe7fffff
root@ejm-laptop:/home/ejm# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 11.04
Release: 11.04
Codename: natty
root@ejm-laptop:/home/ejm# rfkill list
0: dell-wifi: Wireless LAN
 Soft blocked: no
 Hard blocked: no

Thank you for your help

I also advise you get fully updated over the wired link with:

sudo apt-get update; sudo apt-get upgrade; sudo apt-get dist-upgrade

I think that your BCM4311 wireless adapter is experiencing the following Broadcom driver bug in Ubuntu 11.04:

I suggest installing bcmwl-kernel-source ( from maverick (Ubuntu 10.10) using gdebi

Solution is described here:

Then reboot your PC and run the following commands to enable your wireless adapter:

rfkill unblock all
sudo rfkill unblock all

Then retest wireless using NetworkManager

Please create a separate thread for the sound issue using this link:

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Provide an answer of your own, or ask Eric M for more information if necessary.

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