I have Ubuntu 16.04 installed on my laptop. It was working fine until one day an update was there. After the update, I am on kernel
4.15.0-13-generic and there it is. My Broadcom Wifi drivers were nowhere to be detected. On Notification panel, there is no option to switch ON/OFF wifi.
lspci -nnk | grep 0280 -A3:
02:00.0 Network controller : Broadcom Limited BCM43142 802.11b/g/n [14e4:4365] (rev 01) Subsystem: Foxconn International, Inc. BCM43142 802.11b/g/n [105b:e071] 03:00.0 Ethernet controller : Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c) Subsystem: Sony Corporation RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [104d:90be]
I tried different kernels on the present in the grub and they are working fine. Currently, I have to switch to kernel
4.4.0-119.143 to use my wifi.
Here is the error output of command
sudo apt-get install bcmwl-kernel-source:
Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: bcmwl-kernel-source 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 1,544 kB of archives. After this operation, 8,064 kB of additional disk space will be used. Get:1 http://in.archive.ubuntu.com/ubuntu xenial-updates/restricted amd64 bcmwl-kernel-source amd64 184.108.40.2061+bdcom-0ubuntu1~1.2 [1,544 kB] Fetched 1,544 kB in 5s (295 kB/s) Selecting previously unselected package bcmwl-kernel-source. (Reading database ... 290899 files and directories currently installed.) Preparing to unpack .../bcmwl-kernel-source_220.127.116.111+bdcom-0ubuntu1~1.2_amd64.deb ... Unpacking bcmwl-kernel-source (18.104.22.1681+bdcom-0ubuntu1~1.2) ... Setting up bcmwl-kernel-source (22.214.171.1241+bdcom-0ubuntu1~1.2) ... Loading new bcmwl-126.96.36.1991+bdcom DKMS files... First Installation: checking all kernels... Building only for 4.15.0-20-generic Building for architecture x86_64 Building initial module for 4.15.0-20-generic ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/bcmwl-kernel-source.0.crash' Error! Bad return status for module build on kernel: 4.15.0-20-generic (x86_64) Consult /var/lib/dkms/bcmwl/188.8.131.521+bdcom/build/make.log for more information. modprobe: FATAL: Module wl not found in directory /lib/modules/4.15.0-20-generic update-initramfs: deferring update (trigger activated) Processing triggers for initramfs-tools (0.122ubuntu8.11) ... update-initramfs: Generating /boot/initrd.img-4.15.0-20-generic
Also, tell me if I update my
ubuntu 16.04 to
ubuntu 18.04 will help to solve this problem.