Seth, Thanks for your comments. I am running 3.13.0-61 and there is no wireless driver installed at all. The "Additional Drivers" application lists the bcmwl driver as in use, but when I run "dkms status" it lists the wl driver as installed for other kernels but not for the current one. Then I tried removing the package "bcmwl-kernel-source" and reinstalling it, with apt-get, and that worked after I installed the header files for the current kernel with "sudo apt-get install linux-headers-$(uname -r)".
Upon reinstallation of bcmwl-kernel-source, the wifi came up by itself. In retrospect it all makes sense considering that the package must be built from source. What is surprising is that the bcmwl-kernel-source package doesn't depend on the current kernel's package. I guess it can't because it would depend on all kernel's sources. In summary, to make the wifi work by reinstalling the wl driver for the current kernel: $ sudo apt-get remove bcmwl-kernel-source $ sudo apt-get install linux-headers-$(uname -r) $ sudo apt-get install bcmwl-kernel-source Thanks a lot for your help! Got me in the right direction. -- 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/1463845 Title: Regression: no wifi in macbook pro 11,1 Status in bcmwl package in Ubuntu: Incomplete Bug description: Prior kernels in 12.04 such as 3.13.0-13-generic and linux- image-3.13.11-031311ckt16-generic had a working suspend and a working wifi. The latest kernel does not manage to get the wifi up. Additionally upon booting the dialog to enter the password takes tens of seconds to become active while the laptop attempts to connect to the internet. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-extra-3.13.0-53-generic 3.13.0-53.89 ProcVersionSignature: Ubuntu 3.13.0-53.89-generic 3.13.11-ckt19 Uname: Linux 3.13.0-53-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.11 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: albert 2013 F.... pulseaudio /dev/snd/controlC0: albert 2013 F.... pulseaudio CurrentDesktop: Unity Date: Wed Jun 10 09:49:25 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2014-09-16 (267 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) IwConfig: eth1 no wireless extensions. lo no wireless extensions. MachineType: Apple Inc. MacBookPro11,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-53-generic root=UUID=1fe82ec9-9c83-4e33-9506-2f7afb8d9d64 ro libata.force=noncq quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-53-generic N/A linux-backports-modules-3.13.0-53-generic N/A linux-firmware 1.127.12 RfKill: 0: hci0: Bluetooth Soft blocked: yes Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/12/2014 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP111.88Z.0138.B07.1402121134 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-189A3D4F975D5FFC dmi.board.vendor: Apple Inc. dmi.board.version: MacBookPro11,1 dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-189A3D4F975D5FFC dmi.modalias: dmi:bvnAppleInc.:bvrMBP111.88Z.0138.B07.1402121134:bd02/12/2014:svnAppleInc.:pnMacBookPro11,1:pvr1.0:rvnAppleInc.:rnMac-189A3D4F975D5FFC:rvrMacBookPro11,1:cvnAppleInc.:ct10:cvrMac-189A3D4F975D5FFC: dmi.product.name: MacBookPro11,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1463845/+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