How are new non-free hardware drivers installed ?

An Internet connection is required for new non-free hardware drivers installation.

First make sure your system is up to date by forcing an update check. Go to System > Administration > Update manager and click "Check" (no matter what the status is when you start it). Accept any pending updates.

Then go to System > Administration > Hardware Drivers and see if there are any proposed hardware drivers to activate.

Follow the prompts and accept any changes.