Wireless not working (BCM4312)

[kut77less]

I just installed Kramic Koala, but the wireless does not work. It did work in Ubuntu 9.04. I think it is because of the Kernel that it doesn't work. I tired to install, and reinstall, the package bcmwl-kernel-source but no luck. I tired to go to the Hardware Drivers, but it said "not in use." I tried to click "activate" but nothing happened. Is there any suggestions how to resolve this issue. I would really love a method that does not require internet access via a wired connections. I think that the only way to fix the problem is downgrading the kernel.

Thanks for all your help.

[Ayuthia]

I just installed Kramic Koala, but the wireless does not work. It did work in Ubuntu 9.04. I think it is because of the Kernel that it doesn't work. I tired to install, and reinstall, the package bcmwl-kernel-source but no luck. I tired to go to the Hardware Drivers, but it said "not in use." I tried to click "activate" but nothing happened. Is there any suggestions how to resolve this issue. I would really love a method that does not require internet access via a wired connections. I think that the only way to fix the problem is downgrading the kernel.

Thanks for all your help.

You might try the following from the Terminal:

sudo modprobe -r b43 ssb wl
sudo modprobe wl
sudo iwlist scan
If it produces any error messages, please post the error messages.

[kut77less]

You might try the following from the Terminal:

sudo modprobe -r b43 ssb wl
sudo modprobe wl
sudo iwlist scan
If it produces any error messages, please post the error messages.

everything expect "wl" works. It says "Fatal error module not present"

any suggestions?

Thanks

[Ayuthia]

Can you check and see if the following two files exist:

ls /lib/modules/$(uname -r)/updates/dkms
ls /var/lib/dkms/bcmwl/5.10.91.9+bdcom/2.6.31-14-generic/$(uname -m)/module

[craig.o]

I just installed Kramic Koala, but the wireless does not work...

Go to this site (http://wireless.kernel.org/en/users/Drivers/b43) & follow the instructions closely.

By the way, I had just come across this while installing 9.10 on this laptop less than 30 minutes ago(!) For future reference, I found out about this from the system's dmesg. There's a note in there about needing firmware for Broadcom and to visit the above site (non-free issue). A thousand thank-yous to whoever was responsible for that pointer.

Back to you, kut77less: Why are you using Wubi? Just curious... I've heard of it but not sure what the advantage is over a dual-boot e.g.

hth,
-Craig

[kut77less]

Go to this site (http://wireless.kernel.org/en/users/Drivers/b43) & follow the instructions closely.

By the way, I had just come across this while installing 9.10 on this laptop less than 30 minutes ago(!) For future reference, I found out about this from the system's dmesg. There's a note in there about needing firmware for Broadcom and to visit the above site (non-free issue). A thousand thank-yous to whoever was responsible for that pointer.

Back to you, kut77less: Why are you using Wubi? Just curious... I've heard of it but not sure what the advantage is over a dual-boot e.g.

hth,
-Craig
I have tried your suggestion before, but it didn't work. I will do what Ayuthia said, but it would be later because I can't access my laptop right now. I use Wubi instead of dual-boot because my brother is a mean person:(

[kut77less]

Can you check and see if the following two files exist:

ls /lib/modules/$(uname -r)/updates/dkms
ls /var/lib/dkms/bcmwl/5.10.91.9+bdcom/2.6.31-14-generic/$(uname -m)/module
Thanks
I did this and found out that these files do not exist


ls: cannot access /var/lib/dkms/bcmwl/5.10.91.9+bdcom/2.6.31-14-generic/x86_64/module: No such file or directory

ls: cannot access /lib/modules/2.6.31-14-generic/updates/dkms: No such file or directory

How would I get these files?

[Ayuthia]

It should have come with bcmwl-kernel-source.

You might try:

sudo dpkg-reconfigure bcmwl-kernel-source and then check to see if the files are there or not.
It will attempt to configure the package again.

[kut77less]

It should have come with bcmwl-kernel-source.

You might try:

sudo dpkg-reconfigure bcmwl-kernel-source and then check to see if the files are there or not.
It will attempt to configure the package again.



When I do that I get an error message.



Error! Could not locate wl.ko for module bcmwl in the DKMS tree.

You must run a dkms build for kernel 2.6.31-14-generic (x86_64) first.


Any suggestions? Is there a manual way of adding the files?

thanks

[Ayuthia]

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.

[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. :D

[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/Laptop/Reports/AcerAspireOneD150#Wireless%20%28Lucid%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.