Confirmed also for Ubuntu 18.04.2 LTS
Kernel: 4.15.0-55-generic.
Machine: Lenovo Yoga 3 Pro.
This Yoga uses same chip as Dell users noted above ("BCM4352 802.11ac
Wireless Network Adapter").
* Generally speaking this Broadcom integrated chip causes many issues
for many people - but for years now the drivers worked for me - I have 8
operating systems on this machine (old releases) with which wifi works
fine.
* 2016-04-20 --> 2019-08-19 .. 'High' importance.. 3 years for wifi? ;)
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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/1572659
Title:
bcmwl driver does not work with kernel 4.4.0-21 when secure boot
enabled
Status in bcmwl package in Ubuntu:
Confirmed
Bug description:
After updating ubuntu 16.04 to latest kernel 4.4.0-21, bcmwl driver
(package bcmwl-kernel-source) does not load and wifi not work.
sudo modprobe wl
modprobe: ERROR: could not insert 'wl': Required key not available
If I boot with kernel 4.4.0-18 - bcmwl loads normally and wifi works.
If secure boot disabled - bcmwl loads normally with kernel 4.4.0-21
and wifi works.
---
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
DistroRelease: Ubuntu 16.04
InstallationDate: Installed on 2015-12-02 (140 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
NonfreeKernelModules: wl
Package: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu8
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
Tags: xenial
Uname: Linux 4.4.0-18-generic x86_64
UpgradeStatus: Upgraded to xenial on 2016-03-03 (47 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
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