No WiFi detected

[Elbarbudo]

I am not sure wether it is a driver issue or a NM issue.

The Wifi is detected by lspci, but does not appear in NM

00:0b.0 Network controller: Broadcom Corporation BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller (rev 02)

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: network-manager 0.9.8.8-0ubuntu7
ProcVersionSignature: Ubuntu 3.13.0-23.45-generic 3.13.8
Uname: Linux 3.13.0-23-generic i686
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu2
Architecture: i386
CurrentDesktop: XFCE
Date: Mon Apr 14 08:31:35 2014
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2014-04-10 (3 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily i386 (20140409)
IpRoute:
 default via 192.168.0.254 dev eth0 proto static
 192.168.0.0/24 dev eth0 proto kernel scope link src 192.168.0.31 metric 1
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
RfKill:

SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-con:
 NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT READONLY DBUS-PATH
 Connexion filaire 1 3fce440c-3a27-43dc-9c06-f50d442b5c50 802-3-ethernet 1397457009 lun. 14 avril 2014 08:30:09 CEST yes no /org/freedesktop/NetworkManager/Settings/0
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH
 eth0 802-3-ethernet connected /org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
 RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN
 running 0.9.8.8 connected enabled enabled enabled enabled disabled

[Elbarbudo (patricearnal)]

Adding an external USB WiFi key SMC EZConnect works fine.

Driver problem

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Elbarbudo (patricearnal)]

Very strange :

I wiped out Ubuntu 14.04 to install Xubuntu 14.04 (no GPU on this machine hence Ubuntu is unusable)

I added the linux-kernel-non-free in order to get the WiFi card detected and usable, and Presto! everything is running fine...

What are the differences between Xubuntu kernel and regular Ubuntu kernel?

[David Belanger (davidbelanger86)]

i've never contributed to any bug reports, but fwiw, i'm running 14.04 as well, and had a similar issue with my asus p8z77-i deluxe mini itx motherboard with a broadcom bcm43228 chipset. upon installing ubuntu 13.10 OR 14.04, the wifi drivers aren't detected or installed. i can see the chip via lspci, however, it wont list any wifi APs. i solved this issue, by navigating through my 13.10 usb stick, going into the /pool/main/d/dkms/ folder and installing the dkms.deb file in there, then go to /pool/restricted/b/bcmwl directory and installing that .deb file in there. after these steps, the wifi card is detected and all is well. i dont know the technical aspects of linux too well to help you any farther, but that worked for me, and may work for others too.