I'm also using the PPA above and It did work fine for me, no kernel panics. Just for report, as you can see below, the card have been registered as BCM4315, but in fact is a BCM4312
[ 26.621597] wl: module license 'MIXED/Proprietary' taints kernel. [ 26.682615] INFO @wl_cfg80211_attach : Registered CFG80211 phy [ 27.225627] lib80211_crypt: registered algorithm 'TKIP' [ 27.496582] eth1: Broadcom BCM4315 802.11 Hybrid Wireless Controller 6.30.223.30 (r390414) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1134389 Title: Broadcom Sta/wl Drivers causes random kernel panics on ubuntu raring To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1134389/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs