No wireless in 9.10 with Broadcom BCM4312

**Gravy** · November 4th, 2009

No it doesn't show them.
I believe they are the ones I deleted earlier. I thought I had moved them to somewhere rather than deleting. However I cannot find them now so I must of moved them somewhere that doesn't exist.

Is there anyway of reinstalling them?

**pjomega** · November 4th, 2009

first try a locate ccmp. see if you see where you stashed the modules. if not try marking linux-image-2.6.31-14-generic for reinstallation in synaptic. with most packages you can just purge and install, but i don't think you can purge the only linux image

**Gravy** · November 4th, 2009

Ok this is weird locate ccmp says they're in the directory. But, when I ls it they're not there.

Code:

david@david-netbook:~$ locate ccmp lib80211_crypt_wep.ko
/lib/modules/2.6.31-14-generic/kernel/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_ccmp.ko
/lib/modules/2.6.31-14-generic/kernel/net/wireless/lib80211_crypt_ccmp.ko
/lib/modules/2.6.31-14-generic/kernel/net/wireless/lib80211_crypt_wep.ko
/usr/share/doc/wpasupplicant/examples/wpa2-eap-ccmp.conf
/usr/src/linux-headers-2.6.31-14-generic/include/config/lib80211/crypt/ccmp.h

david@david-netbook:~$ ls /lib/modules/2.6.31-14-generic/kernel/net/wireless/
cfg80211.ko  lib80211.ko

**pjomega** · November 4th, 2009

the locate db is outdated (it only updates periodically; just thought it might work) you can do a sudo find / -iname 'lib80211_crypt_wep.ko', which will search everything, right now, but it takes longer.

**Gravy** · November 4th, 2009

Great news.

Once I put all the files back in place I ran the instructions below. Now is working great.

Originally Posted by pjomega

You just need to activate the wl kernel module (the STA driver). Did you reboot after installing? It shouldn't be necessary, but mine did not work properly until i did. Even if you haven't go ahead and try to load it manually:

sudo modprobe wl

Running

lsmod|grep wl

should show wl and ssb loaded afterward. Then check to see if the network interface is up with

ifconfig

The wireless should be eth1 or eth2.

**007marek** · November 13th, 2009

Hi there

I also have problems with wireless after upgrading to 9.10. The sad part is that I got it to work only a week before I upgraded and now it is gone

.
The computer is a DELL VOSTRO 1520
Following the troubleshooting guide http://https://help.ubuntu.com/community/WifiDocs/WirelessTroubleShootingGuide
we have:
1. Device recognition - check

Code:

marek@marek-laptop:~$ sudo lshw -C network
[sudo] password for marek: 
  *-network               
       description: Ethernet interface
       product: RTL8111/8168B PCI Express Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:08:00.0
       logical name: eth0
       version: 03
       serial: 00:24:e8:ae:d8:bc
       size: 100MB/s
       capacity: 1GB/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full ip=192.168.0.102 latency=0 link=yes multicast=yes port=MII speed=100MB/s
       resources: irq:32 ioport:4000(size=256) memory:fe004000-fe004fff(prefetchable) memory:fe000000-fe003fff(prefetchable) memory:fe020000-fe03ffff(prefetchable)
  *-network
       description: Wireless interface
       product: BCM4312 802.11b/g
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:0e:00.0
       logical name: eth1
       version: 01
       serial: 00:25:56:50:b1:cc
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=wl0 driverversion=5.10.91.9 latency=0 multicast=yes wireless=IEEE 802.11bg
       resources: irq:18 memory:f6000000-f6003fff

2. Check for driver - check

Code:

marek@marek-laptop:~$ sudo lsmod |grep wl
wl                   1272936  0 
lib80211                6432  2 lib80211_crypt_tkip,wl

3. router connection - I think it is ok

Code:

marek@marek-laptop:~$ sudo iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

eth1      IEEE 802.11bg  ESSID:""  Nickname:""
          Mode:Managed  Frequency:2.412 GHz  Access Point: Not-Associated   
          Bit Rate:54 Mb/s   Tx-Power:32 dBm   
          Retry min limit:7   RTS thr:off   Fragment thr:off
          Power Managementmode:All packets received

If I right click on the Network Connection applet in the Panel the "Enable Wireless" is grayed out. It becomes active (not grayed out) when I turn off the wireless card with the hardware switch. That is strange enough for me.

I installed wifi radar recently. When I try to connect with it it just sits there forever.
The hardware is ok because when I boot into windows everything works fine.

Any hints on how to proceed from here?

**sakthidaran** · November 29th, 2009

I had similar problem when I migrated from 9.04 to 9.10. Fortunately, I had put 9.10 in a new partition. I configured 9.10 wireless connection with the same SSID and PWD of 9.04. Still, it did not work. Then, I checked System - Administration - Hardware Driver, it was Broadcom STA Wireless Driver in 9.04 where as there was no driver in 9.10.

Next, I booted the system in 9.10 and connected in wired connection. It was working. I updated all the packages by running System - Administration - Update Manager. I rebooted the system in 9.10. Then, I ran System - Administration - Hardware Driver. The system now was showing two drivers. They were Broadcom B43 Wireless Driver and Broadcom STA Wireless Driver. B43 was found activated and STA was not. I selected STA and activated that driver. Then, once again, I rebooted the system. I ran System - Administration - Hardware Driver. The system now was showing only one driver that is Broadcom STA Wireless Driver. It was already activated so I closed. Then, I removed the wired connection and the system automatically connected through wireless.

In a nutshell, 9.10 (original CD) does not load the Broadcom STA Wireless Driver. B43 has some problem. Updating 9.10 helps to detect and load STA driver which needs to be activated manually. If we do this, the problem is solved.

Sakthidaran,
Lenova G450, Intel(R) Core(TM)2 Duo CPU, T6600 @ 2.20GHz, 2 GB RAM, 350GB HD, Broadcom BCM 4312 Controller, Ubuntu 9.10

**mt1234** · November 30th, 2009

I posted what's below in another thread about problems with connecting to wireless networks. I'm pretty new to Linux and the below is pretty basic, but I think that this may be what is causing some of the peoples problems.

It appears that an Ubuntu 9.10 64-bit installation by default has the "Connect to wireless and ethernet networks" setting unchecked in the User Privileges for the Administrators group and Users group (possibly others).

Go to System > Administration > Users and Groups. Click on Properties and then go to the User Privileges tab. Check the box next to "Connect to wireless and ethernet networks". Then click OK.

Then go back to System > Administration > Hardware Drivers. Make sure the Broadcom STA wireless driver is activated. You may need to restart the computer after it is activated. Once restarted, make sure that any switch or button on your laptop or desktop for turning on the wireless radio is turned on.

This worked for me! I hope this helps!