Download wifi driver ubuntu 18.04

First, you'll need to find the exact model of the Broadcom network adapter chip your notebook has. "n" is just the name of the Wi-Fi standard it supports: Broadcom has several wireless chips supporting that standard.

would be a good command to list all PCI(e) devices on your laptop and their PCI ID numbers: those numbers would allow a more accurate identification. will do the same for USB devices.

The listing line might look something like this:

Here, the numbers [14e] are the Device ID. The first part specifies the vendor (Broadcom = 14e4) and the second part identifies the device model.

The listing is a bit different, but the Device ID number is similar: 4 hexadecimal digits for the vendor id, a colon, and then 4 hexadecimal digits for the product ID.

You can check here for the Linux support status of various Broadcom chip models: www.charliesbrew.co.za

Note that the supported Broadcom chips will need firmware: it is probably available pre-packaged in Ubuntu. If Ubuntu uses the same naming scheme as Debian, the firmware package name should be .

With a bit of luck, installing this firmware package and rebooting might be enough to get your Wi-Fi functional if the necessary driver is already in kernel.