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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

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Saprativa Bhattacharjee
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2 Answers2

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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

Jeremy31
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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

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