Having this same issue with building a custom ubuntu iso and pulling in kernel package 5.6-oem. Seems package broadcom-sta-dkms has support for 5.6 so I'm going to give that a try.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bcmwl in Ubuntu. https://bugs.launchpad.net/bugs/1869860 Title: Ubuntu mainline kernel v5.6 not supported by bcmwl-kernel-source Status in bcmwl package in Ubuntu: New Bug description: I am using Ubuntu 18.04 with kernel 4.15.0-91-generic and packet bcmwl-kernel-source version 6.30.223.271+bdcom-0ubuntu5~18.04.1 from bionic-updates. Wifi BCM43228 802.11a/b/g/n [14e4:4359] is fine working. But working stops after installing ubuntu mainline kernel v5.6 (image, modules, headers-all, headers-amd64). While installing kernel there were error messages regarding dkms and no dkms-modul was built. bcmwl-kernel-source should support kernel v5.6 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1869860/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp