I was just looking at the DNS name.
> Found US site, official Atheros:
>
>
http://us.acer.com/ac/en/US/content/drivers
>
> I see drivers for ethernet, wifi, trackpad, display, card reader,
> audio. Some of these aren't currently working (LAN, wifi) and I see
> on a hardware listing (Linux command "lshw") the manufacturer of the
> chip. But the others are not listed and seem to be working (display,
> audio, trackpad, XD/SD card reader).
>
> Do I install these other drivers even though they seem to work?
My rule of thumb is subsumed under "If it ain't broke, don't fix it!"
Unless a driver is missing, or broken, or a credible source reports some
condition in my worry-zone, I leave it alone.