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I recently bought Sony Vaio Fit 15E SVF15414CXB. It has a AMD 64-bit processor and is pre-installed with Windows 8.

I installed Ubuntu 12.10 and made it dual boot. But to my surprise no wireless network is detected on Ubuntu. Even the option "Enable wireless" does not appear.

$ lshw -c network
product: BCM43142 802.11b/g/n
vendor: Broadcom Corporation
configuration : latency=0

$ iwconfig
eth0  no wireless extensions
lo    no wireless extensions

$ lspci -nn
02:00.0 Network Controller [0280] : Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)

I followed the following methods without success:

  1. --> this link does not say anything about BCM43142 chipset

  2. tried with ndiswrapper following the procedure on Ubuntu documentation , but no luck.

  3. --> no luck - but there is no file named wireless-bcm43142-dkms_6.20.55.19-1_amd64.deb available on internet now (might be there previously), therefore this method failed.

So I'm unable to use wireless on my Ubuntu 12.10, however wired connection works.

share|improve this question
I suggest you install Ubuntu 13.10 and then bcmwl-kernel-source. – chili555 Dec 10 '13 at 0:24
thanks chili555..i applied your suggestion and now i have wifi in ubuntu 13.10 – user223882 Dec 13 '13 at 18:00

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