HOWTO: Use b43 driver with 14e4:4315 (Broadcom bcm4312 rev 01)

[rusty73]

sorry, but with fedora fail in the same way like ubuntu. DMA problems too. It's stranger because when you install compat-wireless on a fresh install, the driver works well, but if you reboot the computer, the driver fail.

[mnoyes]

Dell mini9 karmic, really been struggling with this lack of wireless (wired connection is fine)

I get this from lshw -C network:

*-network UNCLAIMED
description: Network controller
product: BCM4312 802.11b/g
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:04:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: latency=0
resources: memory:f0200000-f0203fff

I have the STA driver installed. (activated but, it says, "not in use")

Where to next?

[Alacrity]

Betel,

Which process did you use? Karmic? or the longer process?




Mnoyes & Rusty,

Have you tried Xubuntu 9.10?


A

[tantos]

Many thanks chenxiaolong, now my wireless works!

[chenxiaolong]

Mnoyes, could you check to see if there's a line that says "b43" in the file "/etc/modules"? If there isn't, just add a new line to the bottom of the file that says "b43" and reboot your computer and you should be fine (if you followed the steps in my original post).

Alacrity, I tried creating a persistent Ubuntu USB after I installed the ubuntu-backports-modules-karmic, the firmware, and blacklisted the ssb and wl driver and it works perfectly for me. I have no idea why it doesn't work for you. For the Xubuntu live USB, are you sure that none of the files in "/etc/modprobe.d/" have a line for blacklisting ssb or wl?

Also, could you boot up the Ubuntu live USB and try unloading b43, ssb, and wl and then try loading the b43 module?

sudo rmmod b43
sudo rmmod ssb
sudo rmmod wl
sudo modprobe b43

[Alacrity]

For the Xubuntu live USB, are you sure that none of the files in "/etc/modprobe.d/" have a line for blacklisting ssb or wl?



Yes, I am positive. Neither is shown or blacklisted in Xubuntu. Let me regenerate the USB persistent for Ubuntu 9.10 and I will try your rmmod and modprobe suggestions.


A


EDIT: Interesting. Under Xubuntu, a full b43 directory shows up in /lib/firmware....but does not in Ubuntu. And, as I mentioned, no wl or ssb blacklisted in Xubuntu. Xubuntu also shows b43-fwcutter as an installed package under synaptic but Ubuntu does not. Are you sure you did not do a "sudo apt-get install b43-fwcutter" with Ubuntu 9.10? Hard to figure ...

[chenxiaolong]

Ohhhhhh. I'm sorry. You Do have to install the b43-fwcutter package. I originally installed the firmware using the Restricted Hardware Drivers application and I completely forgot that it installed the b43-fwcutter package. I'll update my original post to include this.

[rusty73]

Betel,

Which process did you use? Karmic? or the longer process?




Mnoyes & Rusty,

Have you tried Xubuntu 9.10?


A

yes, I did. Dmesg show me the same DMA error. I followed de short
way.

[chenxiaolong]

Rusty73, could you try unloading the b43 and ssb module and loading the b43 module again and post what dmesg says?

sudo rmmod b43
sudo rmmod ssb
sudo modprobe b43

[rusty73]

Rusty73, could you try unloading the b43 and ssb module and loading the b43 module again and post what dmesg says?

sudo rmmod b43
sudo rmmod ssb
sudo modprobe b43

In xubuntu or ubuntu?, now i have a fresh install of ubuntu karmic (only i updated the system with synaptic, i didn't install any drivers or compat-wireless), by the way, i searched and found inside compat-wireless forums that the best solution is compile the real wireless tree, not the compat wireless.