The package linux-firmware in oneiric carries newer firmware for BCM43224[1]. I think it is a good idea to try whether this solves the issue. There is more than one way to do that, but I would probably simply update the whole linux-firmware package with https://launchpad.net/ubuntu/+source/linux-firmware/1.54/+build/2552738/+files/linux-firmware_1.54_all.deb .
[1] https://launchpad.net/ubuntu/oneiric/+source/linux-firmware/1.53 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/774496 Title: BCM43224 wireless causes Ubuntu Natty to freeze -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs