Impossible de faire fonctionner le sans fil sur 12.10 et Dell latitude d630

Oui, j'ai regardé plusieurs autres messages et d'autres sites pour essayer de comprendre ce qui se passe, mais j'ai suivi les étapes et je n'ai pas réussi.

Notez que je suis relativement novice dans la configuration du sans fil sur Ubuntu, alors n'hésitez pas à suggérer des erreurs stupides comme "est-il allumé", j'ai très probablement manqué quelque chose de fondamental.

Sortie de quelques commandes :

$ lspci | grep 

0c:00.0 Network controller: Broadcom Corporation BCM4311 802.11a/b/g (rev 01)

$ iwconfig

lo        no wireless extensions.
eth0      no wireless extensions.

Additional Drivers says "Utilisation du pilote Broadcom 802.11 Linux STA wireless source from bcmwl-kernel-source (proprietary)".

J'ai essayé :

sudo apt-get install bcmwl-kernel-source

Cela donne juste des erreurs :

sudo apt-get install bcmwl-kernel-source Reading package lists...
Done Building dependency tree        Reading state information... Done
The following NEW packages will be installed:   bcmwl-kernel-source 0
upgraded, 1 newly installed, 0 to remove and 129 not upgraded. Need to
get 0 B/1,150 kB of archives. After this operation, 3,120 kB of
additional disk space will be used. Selecting previously unselected
package bcmwl-kernel-source. (Reading database ... 204100 files and
directories currently installed.) Unpacking bcmwl-kernel-source (from
.../bcmwl-kernel-source_5.100.82.112+bdcom-0ubuntu3_i386.deb) ...
Setting up bcmwl-kernel-source (5.100.82.112+bdcom-0ubuntu3) ...
Loading new bcmwl-5.100.82.112+bdcom DKMS files... Building only for
3.5.0-18-generic Building for architecture i686 Building initial module for 3.5.0-18-generic Done.

wl: Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/3.5.0-18-generic/updates/dkms/

depmod....

DKMS: install completed. ERROR: Module b43 does not exist in
/proc/modules ERROR: Module b43legacy does not exist in /proc/modules
ERROR: Module ssb does not exist in /proc/modules ERROR: Module
bcm43xx does not exist in /proc/modules ERROR: Module brcm80211 does
not exist in /proc/modules ERROR: Module brcmfmac does not exist in
/proc/modules ERROR: Module brcmsmac does not exist in /proc/modules
ERROR: Module bcma does not exist in /proc/modules update-initramfs:
deferring update (trigger activated) Processing triggers for
initramfs-tools ... update-initramfs: Generating
/boot/initrd.img-3.5.0-18-generic

Aussi, plus de sortie :

sudo lshw -C network    *-network UNCLAIMED     
       description: Network controller
       product: BCM4311 802.11a/b/g
       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: latency=0
       resources: memory:fe8fc000-fe8fffff   *-network
       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: eth0
       version: 02
       serial: 00:1c:23:5b:29:73
       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=3.123 duplex=full firmware=5755m-v3.29 ip=192.168.1.69
latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
       resources: irq:45 memory:fe7f0000-fe7fffff

Des idées ?