Red Hat Bugzilla – Bug 488667
Broadcom 4312 not detected by F10, b43 driver does not appear to work
Last modified: 2009-12-18 03:57:22 EST
Created attachment 334092 [details]
Description of problem:
My wireless card is not detected by Fedora 10. Even after using b43-fwcutter to extract firmware to /lib/firmware/b43. I have manually created a wlan0 alias to b43 and still no luck. I HAVE made wireless work in the past with broadcom-wl package (but was broken by most recent kernel update)
Version-Release number of selected component (if applicable):
b43-fwcutter 011 (3.fc9)
100% on this system
Steps to Reproduce:
1. Install FC10
2. [optional: perform system update]
3. Check NetworkManager for wireless networks --> none because no hardware is detected.
No wlan detected.
Wireless card detected, able to see and connect to access points via NM applet.
I first brought this up on the Fedora Forums, so some good background is also available on that thread: http://forums.fedoraforum.org/showthread.php?t=215616 )
Can you attach the output of 'lshal' when that command is run in a terminal? You could also do "lshal > ~/Desktop/lshal.txt" and just attach the 'lshal.txt' file that will be created on your desktop when you run that command.
Created attachment 334144 [details]
output of lshal after boot-up
This bug has been triaged
Fedora Bugzappers volunteer triage team
So the 4312 is actually the LP-PHY (I think) type, and not yet supported by the b43 driver. Reverse-engineering is already going on though, so it'll be supported in the future. So if the driver can't drive it, NM isn't going to see it :(
Alright. Thanks Dan. Binary driver for now then.
This 4312 chip [14e4:4315] is a LP-PHY and is now working in the latest wireless tree. I've tested it with today's compat-wireless-2.6 patchset against today's rawhide kernel.
According to http://linuxwireless.org/en/users/Drivers/b43#fw-b43-lp, this will be in the 2.6.32 kernel.
Any chance that support for this LP-PHY could be backported to rawhide? Note that the current non-free drivers fail building a kmod with the rawhide kernel, so really this would be the only option for this chip in F12.
Sorry, it's not ready for rawhide (Heh, that's not something you hear everyday :)
Per comment #6, it works, intermittently. If (when) it fails, it generates continuous loops of "b43-phy0 ERORR: Fata DMA error: ... controller reset ... firmware load .... b43-phy0 controller restarted .... Fatal DMA Error ....". This eventually locks up the machine unless I unload the module.
I'll keep testing this from upstream using compat-wireless-2.6 patchset, and make a note here when it's stable. Machine is a Lenovo G530
sorry for the noise.
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