I have been running Lubuntu on my old late 2008 Macbook successfully for a couple of years. This week, the WiFi has suddenly stopped working. Running
lspci shows no sign of the WiFi interface at all.
I've run a full software update over ethernet, and restarted the system a couple of times, but to no avail.
The fault appeared from one day to the next, and did not follow a software update or any other obvious change to the system. I'm leaning towards a hardware fault currently (it is a 15yo laptop, after all), but is there anything else I can do to try and diagnose/fix this fault?