[CentOS] bcm43xx CentOS5

Michael Simpson mikie.simpson at gmail.com
Thu Jul 17 12:36:31 UTC 2008

Hi there,
i am looking for a bit of advice on how to proceed with a wee problem
that i am having.
I have a BCM4306 pcmcia card (one of the later revisions) that i use
to connect to my wpa2 wireless network.
This is running on an old Dell Latitude (circa 1999).
I used to use fedora (7,8 and then 9) on this but 2.6.23 and 2.6.25
stopped populating various bits of /proc/acpi with the relevant
information for the cpu temp sensor to be read accurately (lm_sensors
doesn't detect any sensors either in 2.x or 3.x) so i am reliant on
the kernel to do the necessary magic.
I had been using bcm43xx then b43 to access the card with the 4.x
firmware from openwrt and all was good - speedy responsive etc

Got fed up with kernel updates attempting to fry the laptop as i after
2.6.23 i had to replace the mobo (opened bugzilla report, no action
taken, not complaining coz hey it's a 440BX-M so is fairly unimportant
in the overall scheme of things)

So, as every other box in the house now runs CentOS i installed that instead.
dl'd the bcm43xx-fwcutter from Karanbir (thanks btw!) cut out the bits
from the 3.x firmware from the link on linuxwireless.org, altered
modprobe.conf etc.

Wireless now works but is *real slow* just for internet access (like
minutes for pages to load). ssh, ping etc all good and quick

I am wondering if it is because of the old version of BCM43xx that is
in the 2.6.18 kernel (never liked softMAC much) or if something else
is going on.
top occasionally shows me that Xorg is sometimes going to 70-80% of cpu useage.

The desktop is always really responsive and apart from the browsing
issue which is upsetting my partner loads then CentOS sems ideal for
this laptop.

I really don't want to go back to using ndiswrapper and wondered if
anyone had any pointers other than using another box with which to ssh
-Y firefox &

Am away from the laptop atm but if any further info is needed, dmesg,
lspci etc then i will be able to provide them when i am home this
evening (about 5hrs hence)

Thanks in advance


More information about the CentOS mailing list