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I have a Broadcom 802.11 wireless pci card in my laptop, chipset 4318. I have followed all the instructions to replace the delivered driver with ndiswrapper with the appropriate Windows driver bcmwl5. I've just loaded Ubuntu so the kernel is 3.5.0-17. I had to use ndiswrapper-1.58rc1 to circumvent a problem with modprobe but now when I follow all the steps given for install ndiswrapper I get no errors but still no luck. Driver b43-pci-bridge is listed in /etc/modprobe.d/blacklist.conf but it is still the driver associated with the device according to lshw and I can't find any reference as to where that association is being made. When Ubuntu boots the wireless assistant button on the keyboard is not lit and I can't find any combination of keys or command to get it to light, I assume because the installed driver is wrong. So in short Ubuntu help - Wireless trouble shooting has used up the better part of 3 days but still not produced the desired outcome. Any ideas? I'm sure that if I could find out where that driver is being associated with the device I could make ndiswrapper work instead.

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1 Answer

Ndiswrapper is the least desirable option, in my opinion. Please get a temporary wired ethernet connection, open a terminal and do:

sudo apt-get install linux-firmware-nonfree
sudo modprobe -r b43 && sudo modprobe b43

Your wireless should now be working.

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you are a genius. It works fine. So why all this fuss on so many sites about ndiswrapper? (rhetorical question of course) If I had found this solution I wouldn't have wasted 3 days –  Chuck Jowett Feb 17 '13 at 19:33
    
Many seemingly reliable authorities don't actually understand Broadcom devices as they are driven in Linux in 2013. I barely understand myself because a new chip seems to come out every week, including one new one that has NO way to get working, not even ndiswrapper. I am aware of no Broadcom for which ndiswrapper is the best answer. –  chili555 Feb 17 '13 at 22:25
    
After I installed the latest updates I now have to re-issue sudo modprobe -r b43 && sudo modprobe b43 every time I re-boot. Any ideas what needs to be plugged? –  Chuck Jowett Feb 23 '13 at 14:50
    
Please try this terminal sequence: sudo su; echo b43 >> /etc/modules; exit. Does it work now? –  chili555 Feb 23 '13 at 14:58
    
nope, still not working –  Chuck Jowett Mar 7 '13 at 12:23
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