I fixed mineee Use the following (one at a time)
sudo -i apt install linux-image-$(uname -r|sed 's,[^-]*-[^-]*-,,') linux- headers-$(uname -r|sed 's,[^-]*-[^-]*-,,') broadcom-sta-dkms modprobe -r b44 b43 b43legacy ssb brcmsmac bcma modprobe wl systemctl restart network-manager Just like that, it works. Needs to be one of those, tough (lspci | grep Network to check) : Broadcom BCM4311 (PCI IDs 14e4:4311, 14e4:4312) Broadcom BCM4312 (PCI ID 14e4:4315) Broadcom BCM4313 (PCI ID 14e4:4727) Broadcom BCM4321 (PCI IDs 14e4:4328, 14e4:4329, 14e4:432a) Broadcom BCM4322 (PCI IDs 14e4:432b, 14e4:432c, 14e4:432d) Broadcom BCM43224 (PCI IDs 14e4:0576, 14e4:4353) Broadcom BCM43225 (PCI ID 14e4:4357) Broadcom BCM43227 (PCI ID 14e4:4358) Broadcom BCM43228 (PCI ID 14e4:4359) Broadcom BCM43142 (PCI ID 14e4:4365) Broadcom BCM4331 (PCI ID 14e4:4331) Broadcom BCM4352 (PCI ID 14e4:43b1) Broadcom BCM4360 (PCI IDs 14e4:43a0, 14e4:4360) -- 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/1907445 Title: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu5: bcmwl kernel module failed to build Status in bcmwl package in Ubuntu: Confirmed Bug description: Wifi disappear on Macbook Pro 15" ProblemType: Package DistroRelease: Ubuntu 20.04 Package: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu5 ProcVersionSignature: Ubuntu 5.8.0-32.34~20.04.1-generic 5.8.18 Uname: Linux 5.8.0-32-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 CasperMD5CheckResult: skip DKMSKernelVersion: 5.8.0-32-generic Date: Tue Dec 8 18:14:41 2020 DuplicateSignature: dkms:bcmwl-kernel-source:6.30.223.271+bdcom-0ubuntu5:/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:593:20: error: implicit declaration of function ‘ioremap_nocache’; did you mean ‘ioremap_cache’? [-Werror=implicit-function-declaration] InstallationDate: Installed on 2020-05-07 (215 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) PackageVersion: 6.30.223.271+bdcom-0ubuntu5 Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2 PythonDetails: N/A RelatedPackageVersions: dpkg 1.19.7ubuntu3 apt 2.0.3 SourcePackage: bcmwl Title: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu5: bcmwl kernel module failed to build UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1907445/+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
