Wireless not working (BCM4312)

[kut77less]

Check and see if you have the following directory:

ls /var/lib/dkms/bcmwl

If you do and it returns something like

5.10.91.9+bdcom

Try the following:

sudo dkms build -m bcmwl -v 5.10.91.9+bdcom

If that is successful try:

sudo dkms install -m bcmwl -v 5.10.91.9+bdcom

The first dkms command will build the Broadcom kernel module and create the wl.ko. The second command will install it.

Hope that helps.

Well it worked!!!!

But I did it a different way. I downloaded

dpkg-dev (and some dependencies for it)

http://packages.ubuntu.com/karmic/dpkg-dev

http://packages.ubuntu.com/karmic/patch

And then I ran

sudo dpkg-reconfigure bcmwl-kernel-source

And Then

sudo modprobe -r b43 ssb wl
sudo modprobe wl

It finally worked.

Thanks for all your help.

[milan.skocic]

Well it worked!!!!

But I did it a different way. I downloaded

dpkg-dev (and some dependencies for it)

http://packages.ubuntu.com/karmic/dpkg-dev

http://packages.ubuntu.com/karmic/patch

And then I ran



And Then



It finally worked.

Thanks for all your help.

I did in the same way and wireless works fine.

Just reinstalling bcmwl42xx-kernel-source wasn't sufficient in my case. I had errors during the DKMS building operation.

[rob81]

dpkg-dev (and some dependencies for it)

http://packages.ubuntu.com/karmic/dpkg-dev

http://packages.ubuntu.com/karmic/patch

And then I ran

Quote:
sudo dpkg-reconfigure bcmwl-kernel-source
And Then

Quote:
sudo modprobe -r b43 ssb wl
sudo modprobe wl
It finally worked.

I am running a new Dell Studio 15 and this worked perfectly for me.

However, I need to run the following each time I start my laptop:

sudo dpkg-reconfigure bcmwl-kernel-source
sudo modprobe -r b43 ssb wl
sudo modprobe wl

I'm a bit of a new to all this wireless stuff. Any idea why I have to do this each time I restart?

[Ayuthia]

I am running a new Dell Studio 15 and this worked perfectly for me.

However, I need to run the following each time I start my laptop:

sudo dpkg-reconfigure bcmwl-kernel-source
sudo modprobe -r b43 ssb wl
sudo modprobe wl

I'm a bit of a new to all this wireless stuff. Any idea why I have to do this each time I restart?

You might try the following:

echo blacklist b43 | sudo tee -a /etc/modprobe.d/blacklist.conf
echo blacklist ssb | sudo tee -a /etc/modprobe.d/blacklist.conf
echo wl | sudo tee -a /etc/modules
sudo update-initramfs -u

This will prevent the b43 and ssb modules from loading and it will load the wl module. The update-initramfs will update the system boot information so that it will not try to load the b43 and ssb during the boot process.

Hope that helps.

[rob81]

You might try the following:

Code:

echo blacklist b43 | sudo tee -a /etc/modprobe.d/blacklist.conf
echo blacklist ssb | sudo tee -a /etc/modprobe.d/blacklist.conf
echo wl | sudo tee -a /etc/modules
sudo update-initramfs -u


This will prevent the b43 and ssb modules from loading and it will load the wl module. The update-initramfs will update the system boot information so that it will not try to load the b43 and ssb during the boot process.

Hope that helps.

Thank you Ayuthia. This worked for me!

Wireless was the only issue I had in setting up Ubuntu 9.10 on my Dell Studio 15. It is now running like a dream.

[piccirippo]

Hi all,
thk for solutions.
I applied your indication:
sudo dpkg-reconfigure bcmwl-kernel-source
sudo modprobe -r b43 ssb wl
sudo modprobe wl
and the wlan started well....but i am not able to update the system boot information:

ubuntu@ubuntu:~$ sudo update-initramfs -u
update-initramfs: Generating /boot/initrd.img-2.6.31-14-generic
cp: cannot stat `/vmlinuz': No such file or directory

I thinks that's becouse i am using ubuntu booting from a usb pen whith persistent option, so vlinuz is
in /cdrom/casper directory .
I am new in linux so please what's the right command for me?
thx a lot

[h1kz0r]

Unfortunately I tried all the different methods online including this one and still the wireless doesn't work on my hp mini.
The wl is loaded fine, the STA Driver says active and in use and the wireless led is on.
iwlist gives me an error... failed to read scan data, invalid argument when i do scan or scanning.
I see this issue resolved in many places, but this is complete bs imo and all those ppl have it working on 9.04 not 9.10 and the rest of us just downgraded.
this issue is still unresolved, just like all the other "solved" threads about this.

[leorolla]

With Lucid it works a treat.

With Wubi, Live USB, or a true install, doesn't matter. And it's easy.

Instructions at
https://wiki.ubuntu.com/Testing/Lapt...ucid%20Lynx%29

On some machines it gives a DMA error.

If it fails with another error rather than DMA, it is probably due to the dirt of previous hacking, in this case try with the Live USB to be sure.