I know this sounds similar but my problem is unique. I have a new HP Pavilion 15-p073TX NB PC. Recently I installed Ubuntu 14.04.2 but was not able to start WIFI. I searched a bit and got some answers here and here. But nothing seems to be working till now.
lspci -vvnn | grep -A 9 Network
gave me the following:
08:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
Subsystem: Hewlett-Packard Company Device [103c:2230]
Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 18
Region 0: Memory at b5500000 (64-bit, non-prefetchable) [size=32K]
Capabilities: <access denied>
sudo apt-get install bcmwl-kernel-source
gives me the following error:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
dkms fakeroot libfakeroot
Suggested packages:
dpkg-dev debhelper
The following NEW packages will be installed:
bcmwl-kernel-source dkms fakeroot libfakeroot
0 upgraded, 4 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/1,271 kB of archives.
After this operation, 6,564 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Selecting previously unselected package dkms.
(Reading database ... 163826 files and directories currently installed.)
Preparing to unpack .../dkms_2.2.0.3-1.1ubuntu5.14.04_all.deb ...
Unpacking dkms (2.2.0.3-1.1ubuntu5.14.04) ...
Selecting previously unselected package bcmwl-kernel-source.
Preparing to unpack .../bcmwl-kernel-source_6.30.223.141+bdcom-0ubuntu2_amd64.deb ...
Unpacking bcmwl-kernel-source (6.30.223.141+bdcom-0ubuntu2) ...
Selecting previously unselected package libfakeroot:amd64.
Preparing to unpack .../libfakeroot_1.20-3ubuntu2_amd64.deb ...
Unpacking libfakeroot:amd64 (1.20-3ubuntu2) ...
Selecting previously unselected package fakeroot.
Preparing to unpack .../fakeroot_1.20-3ubuntu2_amd64.deb ...
Unpacking fakeroot (1.20-3ubuntu2) ...
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
Setting up dkms (2.2.0.3-1.1ubuntu5.14.04) ...
Setting up bcmwl-kernel-source (6.30.223.141+bdcom-0ubuntu2) ...
Loading new bcmwl-6.30.223.141+bdcom DKMS files...
First Installation: checking all kernels...
Building only for 3.16.0-30-generic
Building for architecture x86_64
Building initial module for 3.16.0-30-generic
Error! Bad return status for module build on kernel: 3.16.0-30-generic (x86_64)
Consult /var/lib/dkms/bcmwl/6.30.223.141+bdcom/build/make.log for more information.
modprobe: FATAL: Module wl not found.
update-initramfs: deferring update (trigger activated)
Setting up libfakeroot:amd64 (1.20-3ubuntu2) ...
Setting up fakeroot (1.20-3ubuntu2) ...
update-alternatives: using /usr/bin/fakeroot-sysv to provide /usr/bin/fakeroot (fakeroot) in auto mode
Processing triggers for initramfs-tools (0.103ubuntu4.2) ...
update-initramfs: Generating /boot/initrd.img-3.16.0-30-generic
You need to download from http://packages.ubuntu.com/utopic/amd64/bcmwl-kernel-source/download and install, the version you have doesn't have the needed patches to work with the 3.16 kernel
We had the problem of wifi not working in Acer Aspire e5 new laptop after installing ubuntu 14. We also tried to install the driver using the following command.
sudo apt-get install bcmwl-kernel-source
But we got the error that the package could not be found. Later found solution by giving the command
sudo apt-get update
This had then updated all the packages. After this, the installation of bcmwl-kernal-source started to work.
After installation, the wifi started to work !! Thanks for the above post.
Regards, Gopinath